Allow inference of enhancer state extensions, and fix inference when using callback form #3207
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Tagging @Methuselah96 - curious how much this overlaps with the 2.0 work you're doing? |
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There's no overlap with my 2.0 work besides the fact that they both involve enhancer types. I was able to integrate this into the v2.0 branch with only a few minor changes. |
renovate bot
referenced
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in valora-inc/wallet
May 25, 2023
[](https://renovatebot.com) This PR contains the following updates: | Package | Change | Age | Adoption | Passing | Confidence | |---|---|---|---|---|---| | [@reduxjs/toolkit](https://redux-toolkit.js.org) ([source](https://github.com/reduxjs/redux-toolkit)) | [`^1.9.2` -> `^1.9.5`](https://renovatebot.com/diffs/npm/@reduxjs%2ftoolkit/1.9.3/1.9.5) | [](https://docs.renovatebot.com/merge-confidence/) | [](https://docs.renovatebot.com/merge-confidence/) | [](https://docs.renovatebot.com/merge-confidence/) | [](https://docs.renovatebot.com/merge-confidence/) | --- ### Release Notes <details> <summary>reduxjs/redux-toolkit</summary> ### [`v1.9.5`](https://github.com/reduxjs/redux-toolkit/releases/tag/v1.9.5) [Compare Source](https://github.com/reduxjs/redux-toolkit/compare/v1.9.4...v1.9.5) This bugfix release includes notable improvements to TS type inference when using the `enhancers` option in `configureStore`, and updates the listener middleware to only check predicates if the dispatched value is truly an action object. #### What's Changed - update to latest remark-typescript-tools by [@​EskiMojo14](https://github.com/EskiMojo14) in [https://github.com/reduxjs/redux-toolkit/pull/3311](https://github.com/reduxjs/redux-toolkit/pull/3311) - add isAction helper function, and ensure listener middleware only runs for actions by [@​EskiMojo14](https://github.com/EskiMojo14) in [https://github.com/reduxjs/redux-toolkit/pull/3372](https://github.com/reduxjs/redux-toolkit/pull/3372) - Allow inference of enhancer state extensions, and fix inference when using callback form by [@​EskiMojo14](https://github.com/EskiMojo14) in [https://github.com/reduxjs/redux-toolkit/pull/3207](https://github.com/reduxjs/redux-toolkit/pull/3207) **Full Changelog**: reduxjs/redux-toolkit@v1.9.4...v1.9.5 ### [`v1.9.4`](https://github.com/reduxjs/redux-toolkit/releases/tag/v1.9.4) [Compare Source](https://github.com/reduxjs/redux-toolkit/compare/v1.9.3...v1.9.4) This bugfix release includes tweaks to RTKQ options handling, tweaks for perf updates, dependency updates, and updates to our CI tooling. Also, please check out our ongoing RTK 2.0 alpha releases! They have significant improvements to bundle size, ESM/CJS compatibility, TS typings, and reducer update performance. We're looking for real-world feedback on behavior, performance, and any issues you might run into. #### Changelog ##### RTK Query Options Updates Passing `transformResponse` as part of `enhanceEndpoints` can now override the TS type of the original data. `fetchBaseQuery` now properly checks for a global `responseHandler` option. ##### Performance and Internals RTK Query now uses Immer's `original()` to do comparisons inside of `copyWithStructuralSharing`, which should significantly speed up performance when applying changes from re-fetched data. RTKQ's internal `subscriptionUpdated` action is now marked as batchable. We've updated dependencies to Immer 9.0.21, Reselect 4.1.8, and Redux 4.2.1. ##### CI Updates We've added a suite of example apps built with different frameworks such as CRA 4, CRA 5, Next, and Vite, as well as examples that check for compatibility in Node with CJS and ESM modes and with various TS module resolution modes. #### What's Changed - Test published artifacts in CI by [@​markerikson](https://github.com/markerikson) in [https://github.com/reduxjs/redux-toolkit/pull/3213](https://github.com/reduxjs/redux-toolkit/pull/3213) - Use Git revision in version and add Node CI examples by [@​markerikson](https://github.com/markerikson) in [https://github.com/reduxjs/redux-toolkit/pull/3258](https://github.com/reduxjs/redux-toolkit/pull/3258) - Add `arethetypeswrong` automated CLI check by [@​markerikson](https://github.com/markerikson) in [https://github.com/reduxjs/redux-toolkit/pull/3294](https://github.com/reduxjs/redux-toolkit/pull/3294) - Add `attw` CLI option to treat problems as non-errors by [@​markerikson](https://github.com/markerikson) in [https://github.com/reduxjs/redux-toolkit/pull/3316](https://github.com/reduxjs/redux-toolkit/pull/3316) - Use original instead of immer draft for perf by [@​GeorchW](https://github.com/GeorchW) in [https://github.com/reduxjs/redux-toolkit/pull/3270](https://github.com/reduxjs/redux-toolkit/pull/3270) - enable enhanceEndpoints.transformResponse to override ResultType by [@​dmitrigrabov](https://github.com/dmitrigrabov) in [https://github.com/reduxjs/redux-toolkit/pull/2953](https://github.com/reduxjs/redux-toolkit/pull/2953) - Fix global `responseHandler` being used in `fetchBaseQuery` by [@​praxxis](https://github.com/praxxis) in [https://github.com/reduxjs/redux-toolkit/pull/3137](https://github.com/reduxjs/redux-toolkit/pull/3137) - reset internalState.currentSubscriptions on `resetApiState` by [@​phryneas](https://github.com/phryneas) in [https://github.com/reduxjs/redux-toolkit/pull/3333](https://github.com/reduxjs/redux-toolkit/pull/3333) - Bump deps and mark `subscriptionUpdated` as autobatched by [@​markerikson](https://github.com/markerikson) in [https://github.com/reduxjs/redux-toolkit/pull/3364](https://github.com/reduxjs/redux-toolkit/pull/3364) **Full Changelog**: reduxjs/redux-toolkit@v1.9.3...v1.9.4 </details> --- ### Configuration 📅 **Schedule**: Branch creation - "after 5pm,every weekend" in timezone America/Los_Angeles, Automerge - "after 5pm,every weekend" in timezone America/Los_Angeles. 🚦 **Automerge**: Enabled. ♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this PR and you won't be reminded about this update again. --- - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box --- This PR has been generated by [Mend Renovate](https://www.mend.io/free-developer-tools/renovate/). 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thoomasbro
added a commit
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that referenced
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Jun 7, 2023
<h3>Snyk has created this PR to upgrade @reduxjs/toolkit from 1.8.2 to
1.9.5.</h3>
:information_source: Keep your dependencies up-to-date. This makes it
easier to fix existing vulnerabilities and to more quickly identify and
fix newly disclosed vulnerabilities when they affect your project.
<hr/>
- The recommended version is **16 versions** ahead of your current
version.
- The recommended version was released **2 months ago**, on 2023-04-18.
<details>
<summary><b>Release notes</b></summary>
<br/>
<details>
<summary>Package name: <b>@reduxjs/toolkit</b></summary>
<ul>
<li>
<b>1.9.5</b> - <a
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/releases/tag/v1.9.5">2023-04-18</a></br><p>This
bugfix release includes notable improvements to TS type inference when
using the <code>enhancers</code> option in <code>configureStore</code>,
and updates the listener middleware to only check predicates if the
dispatched value is truly an action object.</p>
<h2>What's Changed</h2>
<ul>
<li>update to latest remark-typescript-tools by <a class="user-mention
notranslate" data-hovercard-type="user"
data-hovercard-url="/users/EskiMojo14/hovercard"
data-octo-click="hovercard-link-click"
data-octo-dimensions="link_type:self"
href="https://snyk.io/redirect/github/EskiMojo14">@ EskiMojo14</a> in <a
class="issue-link js-issue-link" data-error-text="Failed to load title"
data-id="1647245026" data-permission-text="Title is private"
data-url="reduxjs/redux-toolkit#3311"
data-hovercard-type="pull_request"
data-hovercard-url="/reduxjs/redux-toolkit/pull/3311/hovercard"
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/pull/3311">#3311</a></li>
<li>add isAction helper function, and ensure listener middleware only
runs for actions by <a class="user-mention notranslate"
data-hovercard-type="user"
data-hovercard-url="/users/EskiMojo14/hovercard"
data-octo-click="hovercard-link-click"
data-octo-dimensions="link_type:self"
href="https://snyk.io/redirect/github/EskiMojo14">@ EskiMojo14</a> in <a
class="issue-link js-issue-link" data-error-text="Failed to load title"
data-id="1671543278" data-permission-text="Title is private"
data-url="reduxjs/redux-toolkit#3372"
data-hovercard-type="pull_request"
data-hovercard-url="/reduxjs/redux-toolkit/pull/3372/hovercard"
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/pull/3372">#3372</a></li>
<li>Allow inference of enhancer state extensions, and fix inference when
using callback form by <a class="user-mention notranslate"
data-hovercard-type="user"
data-hovercard-url="/users/EskiMojo14/hovercard"
data-octo-click="hovercard-link-click"
data-octo-dimensions="link_type:self"
href="https://snyk.io/redirect/github/EskiMojo14">@ EskiMojo14</a> in <a
class="issue-link js-issue-link" data-error-text="Failed to load title"
data-id="1599279846" data-permission-text="Title is private"
data-url="reduxjs/redux-toolkit#3207"
data-hovercard-type="pull_request"
data-hovercard-url="/reduxjs/redux-toolkit/pull/3207/hovercard"
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/pull/3207">#3207</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a class="commit-link"
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/compare/v1.9.4...v1.9.5"><tt>v1.9.4...v1.9.5</tt></a></p>
</li>
<li>
<b>1.9.4</b> - <a
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/releases/tag/v1.9.4">2023-04-17</a></br><p>This
bugfix release includes tweaks to RTKQ options handling, tweaks for perf
updates, dependency updates, and updates to our CI tooling.</p>
<p>Also, please check out our ongoing RTK 2.0 alpha releases! They have
significant improvements to bundle size, ESM/CJS compatibility, TS
typings, and reducer update performance. We're looking for real-world
feedback on behavior, performance, and any issues you might run
into.</p>
<h2>Changelog</h2>
<h3>RTK Query Options Updates</h3>
<p>Passing <code>transformResponse</code> as part of
<code>enhanceEndpoints</code> can now override the TS type of the
original data.</p>
<p><code>fetchBaseQuery</code> now properly checks for a global
<code>responseHandler</code> option.</p>
<h3>Performance and Internals</h3>
<p>RTK Query now uses Immer's <code>original()</code> to do comparisons
inside of <code>copyWithStructuralSharing</code>, which should
significantly speed up performance when applying changes from re-fetched
data.</p>
<p>RTKQ's internal <code>subscriptionUpdated</code> action is now marked
as batchable.</p>
<p>We've updated dependencies to Immer 9.0.21, Reselect 4.1.8, and Redux
4.2.1.</p>
<h3>CI Updates</h3>
<p>We've added a suite of example apps built with different frameworks
such as CRA 4, CRA 5, Next, and Vite, as well as examples that check for
compatibility in Node with CJS and ESM modes and with various TS module
resolution modes.</p>
<h2>What's Changed</h2>
<ul>
<li>Test published artifacts in CI by <a class="user-mention
notranslate" data-hovercard-type="user"
data-hovercard-url="/users/markerikson/hovercard"
data-octo-click="hovercard-link-click"
data-octo-dimensions="link_type:self"
href="https://snyk.io/redirect/github/markerikson">@ markerikson</a> in
<a class="issue-link js-issue-link" data-error-text="Failed to load
title" data-id="1599795072" data-permission-text="Title is private"
data-url="reduxjs/redux-toolkit#3213"
data-hovercard-type="pull_request"
data-hovercard-url="/reduxjs/redux-toolkit/pull/3213/hovercard"
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/pull/3213">#3213</a></li>
<li>Use Git revision in version and add Node CI examples by <a
class="user-mention notranslate" data-hovercard-type="user"
data-hovercard-url="/users/markerikson/hovercard"
data-octo-click="hovercard-link-click"
data-octo-dimensions="link_type:self"
href="https://snyk.io/redirect/github/markerikson">@ markerikson</a> in
<a class="issue-link js-issue-link" data-error-text="Failed to load
title" data-id="1620519241" data-permission-text="Title is private"
data-url="reduxjs/redux-toolkit#3258"
data-hovercard-type="pull_request"
data-hovercard-url="/reduxjs/redux-toolkit/pull/3258/hovercard"
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/pull/3258">#3258</a></li>
<li>Add <code>arethetypeswrong</code> automated CLI check by <a
class="user-mention notranslate" data-hovercard-type="user"
data-hovercard-url="/users/markerikson/hovercard"
data-octo-click="hovercard-link-click"
data-octo-dimensions="link_type:self"
href="https://snyk.io/redirect/github/markerikson">@ markerikson</a> in
<a class="issue-link js-issue-link" data-error-text="Failed to load
title" data-id="1640614710" data-permission-text="Title is private"
data-url="reduxjs/redux-toolkit#3294"
data-hovercard-type="pull_request"
data-hovercard-url="/reduxjs/redux-toolkit/pull/3294/hovercard"
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/pull/3294">#3294</a></li>
<li>Add <code>attw</code> CLI option to treat problems as non-errors by
<a class="user-mention notranslate" data-hovercard-type="user"
data-hovercard-url="/users/markerikson/hovercard"
data-octo-click="hovercard-link-click"
data-octo-dimensions="link_type:self"
href="https://snyk.io/redirect/github/markerikson">@ markerikson</a> in
<a class="issue-link js-issue-link" data-error-text="Failed to load
title" data-id="1651028883" data-permission-text="Title is private"
data-url="reduxjs/redux-toolkit#3316"
data-hovercard-type="pull_request"
data-hovercard-url="/reduxjs/redux-toolkit/pull/3316/hovercard"
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/pull/3316">#3316</a></li>
<li>Use original instead of immer draft for perf by <a
class="user-mention notranslate" data-hovercard-type="user"
data-hovercard-url="/users/GeorchW/hovercard"
data-octo-click="hovercard-link-click"
data-octo-dimensions="link_type:self"
href="https://snyk.io/redirect/github/GeorchW">@ GeorchW</a> in <a
class="issue-link js-issue-link" data-error-text="Failed to load title"
data-id="1625420397" data-permission-text="Title is private"
data-url="reduxjs/redux-toolkit#3270"
data-hovercard-type="pull_request"
data-hovercard-url="/reduxjs/redux-toolkit/pull/3270/hovercard"
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/pull/3270">#3270</a></li>
<li>enable enhanceEndpoints.transformResponse to override ResultType by
<a class="user-mention notranslate" data-hovercard-type="user"
data-hovercard-url="/users/dmitrigrabov/hovercard"
data-octo-click="hovercard-link-click"
data-octo-dimensions="link_type:self"
href="https://snyk.io/redirect/github/dmitrigrabov">@ dmitrigrabov</a>
in <a class="issue-link js-issue-link" data-error-text="Failed to load
title" data-id="1465453759" data-permission-text="Title is private"
data-url="reduxjs/redux-toolkit#2953"
data-hovercard-type="pull_request"
data-hovercard-url="/reduxjs/redux-toolkit/pull/2953/hovercard"
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/pull/2953">#2953</a></li>
<li>Fix global <code>responseHandler</code> being used in
<code>fetchBaseQuery</code> by <a class="user-mention notranslate"
data-hovercard-type="user" data-hovercard-url="/users/praxxis/hovercard"
data-octo-click="hovercard-link-click"
data-octo-dimensions="link_type:self"
href="https://snyk.io/redirect/github/praxxis">@ praxxis</a> in <a
class="issue-link js-issue-link" data-error-text="Failed to load title"
data-id="1562715953" data-permission-text="Title is private"
data-url="reduxjs/redux-toolkit#3137"
data-hovercard-type="pull_request"
data-hovercard-url="/reduxjs/redux-toolkit/pull/3137/hovercard"
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/pull/3137">#3137</a></li>
<li>reset internalState.currentSubscriptions on
<code>resetApiState</code> by <a class="user-mention notranslate"
data-hovercard-type="user"
data-hovercard-url="/users/phryneas/hovercard"
data-octo-click="hovercard-link-click"
data-octo-dimensions="link_type:self"
href="https://snyk.io/redirect/github/phryneas">@ phryneas</a> in <a
class="issue-link js-issue-link" data-error-text="Failed to load title"
data-id="1658730665" data-permission-text="Title is private"
data-url="reduxjs/redux-toolkit#3333"
data-hovercard-type="pull_request"
data-hovercard-url="/reduxjs/redux-toolkit/pull/3333/hovercard"
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/pull/3333">#3333</a></li>
<li>Bump deps and mark <code>subscriptionUpdated</code> as autobatched
by <a class="user-mention notranslate" data-hovercard-type="user"
data-hovercard-url="/users/markerikson/hovercard"
data-octo-click="hovercard-link-click"
data-octo-dimensions="link_type:self"
href="https://snyk.io/redirect/github/markerikson">@ markerikson</a> in
<a class="issue-link js-issue-link" data-error-text="Failed to load
title" data-id="1670234827" data-permission-text="Title is private"
data-url="reduxjs/redux-toolkit#3364"
data-hovercard-type="pull_request"
data-hovercard-url="/reduxjs/redux-toolkit/pull/3364/hovercard"
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/pull/3364">#3364</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a class="commit-link"
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/compare/v1.9.3...v1.9.4"><tt>v1.9.3...v1.9.4</tt></a></p>
</li>
<li>
<b>1.9.3</b> - <a
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/releases/tag/v1.9.3">2023-02-21</a></br><p>This
release fixes a couple issues with the <code>skip/skipToken</code>
options for query hooks, and makes a small perf tweak to serializing
query args.</p>
<h2>Changelog</h2>
<h3>Skip Behavior</h3>
<p>We made a change in <a
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/releases/tag/v1.9.0">v1.9.0</a>
that tried to make some skip behavior more consistent, including
clearing out the cached data. However, we had overlooked that our own
docs actually said "skipping a query will <em>keep</em> the cached
data", and several users pointed this out as they'd been relying on that
behavior.</p>
<p>We've reverted that change. Now, setting <code>{skip: true}</code> or
<code>skipToken</code> for a query with existing results will keep the
<code>data</code> value (reflecting the last successful query), but
<code>currentData</code> will be undefined (reflecting the
<em>current</em> settings).</p>
<p>We also identified and fixed an issue that could cause subscription
entries to leak under a specific combination of timing and settings
changes.</p>
<h3>Query Arg Serialization Perf</h3>
<p>RTKQ relies on serializing query arguments to serve as the cache
keys, with the default using <code>JSON.stringify()</code> + some logic
for sorting keys. There was a report that in some apps, large query arg
objects could take a while to stringify and this was being done
repeatedly. We've added a <code>WeakMap</code>-based cache for query
args to avoid re-serializing existing arg values.</p>
<h2>What's Changed</h2>
<ul>
<li>Revert "clear data on skip" back to its original behavior by <a
class="user-mention notranslate" data-hovercard-type="user"
data-hovercard-url="/users/markerikson/hovercard"
data-octo-click="hovercard-link-click"
data-octo-dimensions="link_type:self"
href="https://snyk.io/redirect/github/markerikson">@ markerikson</a> in
<a class="issue-link js-issue-link" data-error-text="Failed to load
title" data-id="1590791931" data-permission-text="Title is private"
data-url="reduxjs/redux-toolkit#3188"
data-hovercard-type="pull_request"
data-hovercard-url="/reduxjs/redux-toolkit/pull/3188/hovercard"
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/pull/3188">#3188</a></li>
<li>Use a WeakMap cache for query arg serialization for perf by <a
class="user-mention notranslate" data-hovercard-type="user"
data-hovercard-url="/users/markerikson/hovercard"
data-octo-click="hovercard-link-click"
data-octo-dimensions="link_type:self"
href="https://snyk.io/redirect/github/markerikson">@ markerikson</a> in
<a class="issue-link js-issue-link" data-error-text="Failed to load
title" data-id="1592238985" data-permission-text="Title is private"
data-url="reduxjs/redux-toolkit#3193"
data-hovercard-type="pull_request"
data-hovercard-url="/reduxjs/redux-toolkit/pull/3193/hovercard"
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/pull/3193">#3193</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a class="commit-link"
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/compare/v1.9.2...v1.9.3"><tt>v1.9.2...v1.9.3</tt></a></p>
</li>
<li>
<b>1.9.2</b> - <a
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/releases/tag/v1.9.2">2023-01-28</a></br><p>This
bugfix release fixes a memory leak in
<code>createListenerMiddleware</code>, optimizes performance inside
<code>serializableMiddleware</code>, adds new options for
<code>fetchBaseQuery</code>, adds support for path <code>RegExp</code>
exclusions in <code>serializableMiddleware</code> and
<code>immutabilityMiddleware</code>, and improves some TS types.</p>
<h2>Changelog</h2>
<h3>Bug Fixes</h3>
<p><code>createListenerMiddleware</code> had a memory leak that turned
out to be <a
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/issues/3020"
data-hovercard-type="issue"
data-hovercard-url="/reduxjs/redux-toolkit/issues/3020/hovercard">due to
use of <code>Promise.race()</code></a>. We've restructured the logic to
fix that.</p>
<p><code>fetchBaseQuery</code> now correctly combines global options
with endpoint / default options in all cases.</p>
<h3>New Options</h3>
<p><code>fetchBaseQuery</code> now supports a <code>jsonReplacer</code>
option that will be used when processing JSON.</p>
<p>Both dev check middleware now support regular expressions in the
<code>ignoredPaths</code> array in addition to strings. This adds extra
flexibility in skipping certain fields.</p>
<h3>TS Changes</h3>
<p>The <code>CaseReducer</code> type was sometimes incorrectly inferring
its return type in rare cases. That's been fixed.</p>
<p>The <code>isAnyOf/isAllOf</code> matcher function TS types have been
tweaked to not require an individual first parameter. This allows
spreading arrays of matchers as arguments, like <code>const isLoading =
isAnyOf(...interestingPendingThunksArray)</code>.</p>
<h3>Other Changes</h3>
<p>The <code>serializableMiddleware</code> now uses a
<code>WeakSet</code> if available to cache values it's seen. This should
significantly speed up checks against large state values in development
builds.</p>
<h2>What's Changed</h2>
<ul>
<li>fix CaseReducer to infer from argument, not return value by <a
class="user-mention notranslate" data-hovercard-type="user"
data-hovercard-url="/users/phryneas/hovercard"
data-octo-click="hovercard-link-click"
data-octo-dimensions="link_type:self"
href="https://snyk.io/redirect/github/phryneas">@ phryneas</a> in <a
class="issue-link js-issue-link" data-error-text="Failed to load title"
data-id="1516765916" data-permission-text="Title is private"
data-url="reduxjs/redux-toolkit#3054"
data-hovercard-type="pull_request"
data-hovercard-url="/reduxjs/redux-toolkit/pull/3054/hovercard"
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/pull/3054">#3054</a></li>
<li>fetchBaseQuery | Add jsonReplacer param by <a class="user-mention
notranslate" data-hovercard-type="user"
data-hovercard-url="/users/tophep/hovercard"
data-octo-click="hovercard-link-click"
data-octo-dimensions="link_type:self"
href="https://snyk.io/redirect/github/tophep">@ tophep</a> in <a
class="issue-link js-issue-link" data-error-text="Failed to load title"
data-id="1447193004" data-permission-text="Title is private"
data-url="reduxjs/redux-toolkit#2904"
data-hovercard-type="pull_request"
data-hovercard-url="/reduxjs/redux-toolkit/pull/2904/hovercard"
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/pull/2904">#2904</a></li>
<li>Support RegExp in ignoredPaths/ignoredActionPaths by <a
class="user-mention notranslate" data-hovercard-type="user"
data-hovercard-url="/users/markerikson/hovercard"
data-octo-click="hovercard-link-click"
data-octo-dimensions="link_type:self"
href="https://snyk.io/redirect/github/markerikson">@ markerikson</a> in
<a class="issue-link js-issue-link" data-error-text="Failed to load
title" data-id="1560956346" data-permission-text="Title is private"
data-url="reduxjs/redux-toolkit#3129"
data-hovercard-type="pull_request"
data-hovercard-url="/reduxjs/redux-toolkit/pull/3129/hovercard"
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/pull/3129">#3129</a></li>
<li>fix(types): export <code>ThunkWithReturnValue</code> interface by <a
class="user-mention notranslate" data-hovercard-type="user"
data-hovercard-url="/users/giomogna/hovercard"
data-octo-click="hovercard-link-click"
data-octo-dimensions="link_type:self"
href="https://snyk.io/redirect/github/giomogna">@ giomogna</a> in <a
class="issue-link js-issue-link" data-error-text="Failed to load title"
data-id="1551057034" data-permission-text="Title is private"
data-url="reduxjs/redux-toolkit#3108"
data-hovercard-type="pull_request"
data-hovercard-url="/reduxjs/redux-toolkit/pull/3108/hovercard"
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/pull/3108">#3108</a></li>
<li>remove unnecessary fetchBaseQuery defaults by <a class="user-mention
notranslate" data-hovercard-type="user"
data-hovercard-url="/users/phryneas/hovercard"
data-octo-click="hovercard-link-click"
data-octo-dimensions="link_type:self"
href="https://snyk.io/redirect/github/phryneas">@ phryneas</a> in <a
class="issue-link js-issue-link" data-error-text="Failed to load title"
data-id="1522739516" data-permission-text="Title is private"
data-url="reduxjs/redux-toolkit#3062"
data-hovercard-type="pull_request"
data-hovercard-url="/reduxjs/redux-toolkit/pull/3062/hovercard"
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/pull/3062">#3062</a></li>
<li>make isAnyOf friendly for mapped matchers, but making argument
optional by <a class="user-mention notranslate"
data-hovercard-type="user" data-hovercard-url="/users/megagon/hovercard"
data-octo-click="hovercard-link-click"
data-octo-dimensions="link_type:self"
href="https://snyk.io/redirect/github/megagon">@ megagon</a> in <a
class="issue-link js-issue-link" data-error-text="Failed to load title"
data-id="1558085622" data-permission-text="Title is private"
data-url="reduxjs/redux-toolkit#3123"
data-hovercard-type="pull_request"
data-hovercard-url="/reduxjs/redux-toolkit/pull/3123/hovercard"
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/pull/3123">#3123</a></li>
<li><code>raceWithSignal</code> method instead of
<code>Promise.race</code> by <a class="user-mention notranslate"
data-hovercard-type="user"
data-hovercard-url="/users/phryneas/hovercard"
data-octo-click="hovercard-link-click"
data-octo-dimensions="link_type:self"
href="https://snyk.io/redirect/github/phryneas">@ phryneas</a> in <a
class="issue-link js-issue-link" data-error-text="Failed to load title"
data-id="1504902319" data-permission-text="Title is private"
data-url="reduxjs/redux-toolkit#3021"
data-hovercard-type="pull_request"
data-hovercard-url="/reduxjs/redux-toolkit/pull/3021/hovercard"
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/pull/3021">#3021</a></li>
<li>Fix lint problems and enable linting on CI by <a class="user-mention
notranslate" data-hovercard-type="user"
data-hovercard-url="/users/thorn0/hovercard"
data-octo-click="hovercard-link-click"
data-octo-dimensions="link_type:self"
href="https://snyk.io/redirect/github/thorn0">@ thorn0</a> in <a
class="issue-link js-issue-link" data-error-text="Failed to load title"
data-id="1488424615" data-permission-text="Title is private"
data-url="reduxjs/redux-toolkit#2992"
data-hovercard-type="pull_request"
data-hovercard-url="/reduxjs/redux-toolkit/pull/2992/hovercard"
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/pull/2992">#2992</a></li>
<li>Add caching to serializableStateInvariantMiddleware by <a
class="user-mention notranslate" data-hovercard-type="user"
data-hovercard-url="/users/GeorchW/hovercard"
data-octo-click="hovercard-link-click"
data-octo-dimensions="link_type:self"
href="https://snyk.io/redirect/github/GeorchW">@ GeorchW</a> in <a
class="issue-link js-issue-link" data-error-text="Failed to load title"
data-id="1553397570" data-permission-text="Title is private"
data-url="reduxjs/redux-toolkit#3115"
data-hovercard-type="pull_request"
data-hovercard-url="/reduxjs/redux-toolkit/pull/3115/hovercard"
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/pull/3115">#3115</a></li>
<li>Allow TS isolatedModules flag to be set for safer transpilation by
<a class="user-mention notranslate" data-hovercard-type="user"
data-hovercard-url="/users/matmannion/hovercard"
data-octo-click="hovercard-link-click"
data-octo-dimensions="link_type:self"
href="https://snyk.io/redirect/github/matmannion">@ matmannion</a> in <a
class="issue-link js-issue-link" data-error-text="Failed to load title"
data-id="1449638690" data-permission-text="Title is private"
data-url="reduxjs/redux-toolkit#2911"
data-hovercard-type="pull_request"
data-hovercard-url="/reduxjs/redux-toolkit/pull/2911/hovercard"
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/pull/2911">#2911</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a class="commit-link"
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/compare/v1.9.1...v1.9.2"><tt>v1.9.1...v1.9.2</tt></a></p>
</li>
<li>
<b>1.9.1</b> - <a
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/releases/tag/v1.9.1">2022-11-30</a></br><a
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/releases/tag/v1.9.1">
Read more </a>
</li>
<li>
<b>1.9.0</b> - 2022-11-04
</li>
<li>
<b>1.9.0-rc.1</b> - 2022-11-02
</li>
<li>
<b>1.9.0-rc.0</b> - 2022-10-30
</li>
<li>
<b>1.9.0-beta.0</b> - 2022-10-19
</li>
<li>
<b>1.9.0-alpha.2</b> - 2022-10-09
</li>
<li>
<b>1.9.0-alpha.1</b> - 2022-08-28
</li>
<li>
<b>1.9.0-alpha.0</b> - 2022-08-19
</li>
<li>
<b>1.8.6</b> - 2022-10-09
</li>
<li>
<b>1.8.5</b> - 2022-08-19
</li>
<li>
<b>1.8.4</b> - 2022-08-11
</li>
<li>
<b>1.8.3</b> - 2022-06-30
</li>
<li>
<b>1.8.2</b> - 2022-05-25
</li>
</ul>
from <a
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/releases">@reduxjs/toolkit
GitHub release notes</a>
</details>
</details>
<details>
<summary><b>Commit messages</b></summary>
</br>
<details>
<summary>Package name: <b>@reduxjs/toolkit</b></summary>
<ul>
<li><a
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/commit/1f87ac2071d020212070075f5a44db683bd3e5d5">1f87ac2</a>
Merge pull request #3207 from EskiMojo14/enhancer-array</li>
<li><a
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/commit/da3f6ed4aaf1336604d916d4be3e73f1ae84ec65">da3f6ed</a>
Merge pull request #3372 from EskiMojo14/listener-action</li>
<li><a
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/commit/ebe1777f2975ab50384da08cca5e0ba629460749">ebe1777</a>
Merge pull request #3311 from EskiMojo14/remark-typescript-update</li>
<li><a
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/commit/0c6cd6eb17e87f6495cf6442e6a68f08c5d9e813">0c6cd6e</a>
add test</li>
<li><a
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/commit/482270e6aa6db7a2b1449bcf26b40f2a9979eac3">482270e</a>
add isAction helper function, and ensure listener middleware only runs
for actions</li>
<li><a
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/commit/eb586b65aa93405486311a6eb188b4fc8bea0c1b">eb586b6</a>
Merge pull request #3366 from n-ii-ma/patch-1</li>
<li><a
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/commit/811dd473ad8180d65a73255342069a55da037ac2">811dd47</a>
Fix typo</li>
<li><a
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/commit/18bc6bc999593356274bf9b70bfff6a70e1bffd1">18bc6bc</a>
Release 1.9.4</li>
<li><a
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/commit/2282f608fe3459b971b8171dfac27c2f6e33c0b0">2282f60</a>
Merge pull request #3364 from reduxjs/bugfix/autobatch-actions</li>
<li><a
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/commit/a9057c6bb6a51a5582824ce1dc083512f99ea417">a9057c6</a>
Mark `subscriptionsUpdated` as autobatched</li>
<li><a
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/commit/cc9d4165394d29f7acdafbdb54dc1e1087f61e59">cc9d416</a>
Merge pull request #3333 from reduxjs/pr/fix-3119</li>
<li><a
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/commit/ef8480b9ed746bd9fa5d98b45426e6b07eb78127">ef8480b</a>
Bump deps</li>
<li><a
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/commit/8232827c667e33b334577c226fdc7e058bbdd6aa">8232827</a>
Merge pull request #3137 from praxxis/global-responsehandler</li>
<li><a
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/commit/8962cef6bee654812cf42b1c4252a065863d13e7">8962cef</a>
Merge pull request #2953 from
dmitrigrabov/use-transformed-response-result-type</li>
<li><a
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/commit/53df220b374ae83a1bbdad40101ebaffb5f87e64">53df220</a>
Merge pull request #3270 from
GeorchW/copywithstructuralsharing-perf</li>
<li><a
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/commit/933502ce276dc1fca6cfdb92d2b645b77a94e4d3">933502c</a>
Use original instead of immer draft for perf</li>
<li><a
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/commit/23a78cabae33ffc514602e9ea5763446db02e1b6">23a78ca</a>
Merge pull request #3334 from chmac/patch-2</li>
<li><a
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/commit/b9c3ef43b70d5a94964cacfa268611b6e367ba87">b9c3ef4</a>
Add a note about timing #2435</li>
<li><a
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/commit/ab485012bfca753236b5533ce7651b6baf4ffbaa">ab48501</a>
Merge pull request #3331 from chmac/patch-1</li>
<li><a
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/commit/25717186fb25cae0cb51770d6f4f14d66a08e604">2571718</a>
Minor typo fix</li>
<li><a
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/commit/98d7dda57992ccd20b93eaf85bcf35ac802b0b3f">98d7dda</a>
reset internalState.currentSubscriptions on
`resetApiState`</li>
<li><a
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/commit/91ea926cd53f5bf0a9da14d7bdcb127dcd71c8d2">91ea926</a>
Merge pull request #3316 from reduxjs/feature/attw-args</li>
<li><a
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/commit/a058d8d60fff420c17e7a03e4b132d9068633f83">a058d8d</a>
Add CLI flag to treat ATTW problems as non-errors</li>
<li><a
href="https://snyk.io/redirect/github/reduxjs/redux-toolkit/commit/1c7a705180fc20913468d191e1705097a1423589">1c7a705</a>
Add yargs</li>
</ul>
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This PR contains the following updates:
| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [@reduxjs/toolkit](https://redux-toolkit.js.org)
([source](https://github.com/reduxjs/redux-toolkit)) | [`^1.9.7` ->
`^2.2.1`](https://renovatebot.com/diffs/npm/@reduxjs%2ftoolkit/1.9.7/2.2.1)
|
[](https://docs.renovatebot.com/merge-confidence/)
|
[](https://docs.renovatebot.com/merge-confidence/)
|
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|
[](https://docs.renovatebot.com/merge-confidence/)
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---
### Release Notes
<details>
<summary>reduxjs/redux-toolkit (@​reduxjs/toolkit)</summary>
###
[`v2.2.1`](https://github.com/reduxjs/redux-toolkit/compare/v2.2.0...v2.2.1)
[Compare
Source](https://github.com/reduxjs/redux-toolkit/compare/v2.2.0...v2.2.1)
###
[`v2.2.0`](https://github.com/reduxjs/redux-toolkit/releases/tag/v2.2.0)
[Compare
Source](https://github.com/reduxjs/redux-toolkit/compare/v2.1.0...v2.2.0)
This *minor release*:
- Adds a second parameter to
`entityAdapter.getInitialState(additionalProps, entities)` to allow
prefilling state
- Equivalent to
`entityAdapter.setAll(entityAdapter.getInitialState(additionalProps),
entities)`
- First parameter can be `undefined` if no additional properties are
desired
- Allows initialising `combineSlices` with no static reducers
- Previously `const combinedReducer =
combineSlices().withLazyLoadedSlices<LazyLoadedSlices>()` would have
thrown an error
- Now returns a "no-op" reducer that just returns an empty object until
first reducer injected
- Allows a new `'throw'` value for `overrideExisting` in
`injectEndpoints`, which throws an error if a definition is injected
with a name which is already used
- Exports more type helpers for RTKQ hook and trigger types
- Exports types related to overriding result types in `enhanceEndpoints`
- Fixes state inference for injected slices when undeclared (i.e. not in
`LazyLoadedSlices`)
- Adds a `action.meta.arg.isPrefetch` value to query thunk actions when
prefetched
#### What's Changed
- Revamp type tests setup by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4095](https://github.com/reduxjs/redux-toolkit/pull/4095)
- Bump Prettier and Prettier related packages by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4126](https://github.com/reduxjs/redux-toolkit/pull/4126)
- Fix codemods to work with TypeScript 4.7+ by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4081](https://github.com/reduxjs/redux-toolkit/pull/4081)
- Export types related to overriding the result types by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4134](https://github.com/reduxjs/redux-toolkit/pull/4134)
- Migrate type tests to Vitest by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4127](https://github.com/reduxjs/redux-toolkit/pull/4127)
- Fix RetryOptions type test by flipping order by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4136](https://github.com/reduxjs/redux-toolkit/pull/4136)
- Format all files by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4135](https://github.com/reduxjs/redux-toolkit/pull/4135)
- \[Docs/Website] skipPollingIfUnfocused added to polling overview and
query options by [@​riqts](https://github.com/riqts) in
[https://github.com/reduxjs/redux-toolkit/pull/4131](https://github.com/reduxjs/redux-toolkit/pull/4131)
- \[Docs] Changed create.asyncThunk setup admonition to caution by
[@​riqts](https://github.com/riqts) in
[https://github.com/reduxjs/redux-toolkit/pull/4150](https://github.com/reduxjs/redux-toolkit/pull/4150)
- Temporarily revert node-fetch bump until ESM issues are sorted by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4151](https://github.com/reduxjs/redux-toolkit/pull/4151)
- Contributing Markdown Refresh by
[@​itz-Me-Pj](https://github.com/itz-Me-Pj) in
[https://github.com/reduxjs/redux-toolkit/pull/4139](https://github.com/reduxjs/redux-toolkit/pull/4139)
- investigate re-adding size limit action by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4083](https://github.com/reduxjs/redux-toolkit/pull/4083)
- Add size limit imports for more commonly used RTK exports by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4155](https://github.com/reduxjs/redux-toolkit/pull/4155)
- pure some things by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4157](https://github.com/reduxjs/redux-toolkit/pull/4157)
- cut back on suffixes tested for size by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4160](https://github.com/reduxjs/redux-toolkit/pull/4160)
- Incorrect builder method referenced by
[@​kantbtrue](https://github.com/kantbtrue) in
[https://github.com/reduxjs/redux-toolkit/pull/4161](https://github.com/reduxjs/redux-toolkit/pull/4161)
- Rename `cli.js` to `cli.mjs` by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4169](https://github.com/reduxjs/redux-toolkit/pull/4169)
- Migrate Codegen OpenAPI's unit tests to Vitest by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4137](https://github.com/reduxjs/redux-toolkit/pull/4137)
- Fix wrong state for injected slices when not declared via
`withLazyLoadedSlices` by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4172](https://github.com/reduxjs/redux-toolkit/pull/4172)
- \[Docs, createEntityAdapter API]: add missing setOne and setMany
signature by [@​kyselberg](https://github.com/kyselberg) in
[https://github.com/reduxjs/redux-toolkit/pull/4173](https://github.com/reduxjs/redux-toolkit/pull/4173)
- Corrected the "Observing cache behaviour" example point no.4 by
[@​721-atikshaikh](https://github.com/721-atikshaikh) in
[https://github.com/reduxjs/redux-toolkit/pull/4174](https://github.com/reduxjs/redux-toolkit/pull/4174)
- feat: add isPrefetch property in query action by
[@​juliengbt](https://github.com/juliengbt) in
[https://github.com/reduxjs/redux-toolkit/pull/4177](https://github.com/reduxjs/redux-toolkit/pull/4177)
- allow initialising combined slice reducer with no static slices by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4184](https://github.com/reduxjs/redux-toolkit/pull/4184)
- Create more Typed wrappers for RTKQ hook types by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4147](https://github.com/reduxjs/redux-toolkit/pull/4147)
- proposal fix for axios base query types by
[@​smff](https://github.com/smff) in
[https://github.com/reduxjs/redux-toolkit/pull/4186](https://github.com/reduxjs/redux-toolkit/pull/4186)
- Provide 'throw' option for `overrideExisting` by
[@​ffluk3](https://github.com/ffluk3) in
[https://github.com/reduxjs/redux-toolkit/pull/4189](https://github.com/reduxjs/redux-toolkit/pull/4189)
- Use vite-tsconfig-paths to make path aliasing easier by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4175](https://github.com/reduxjs/redux-toolkit/pull/4175)
- Remove trailing commas in `tsconfig.json` files of all CodesandBox
examples by [@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4190](https://github.com/reduxjs/redux-toolkit/pull/4190)
- \[Docs] Added withTypes documentation in createDraftSafeSelector by
[@​riqts](https://github.com/riqts) in
[https://github.com/reduxjs/redux-toolkit/pull/4143](https://github.com/reduxjs/redux-toolkit/pull/4143)
- Add second parameter to getInitialState to prefill entities by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4183](https://github.com/reduxjs/redux-toolkit/pull/4183)
#### New Contributors
- [@​itz-Me-Pj](https://github.com/itz-Me-Pj) made their first
contribution in
[https://github.com/reduxjs/redux-toolkit/pull/4139](https://github.com/reduxjs/redux-toolkit/pull/4139)
- [@​kantbtrue](https://github.com/kantbtrue) made their first
contribution in
[https://github.com/reduxjs/redux-toolkit/pull/4161](https://github.com/reduxjs/redux-toolkit/pull/4161)
- [@​kyselberg](https://github.com/kyselberg) made their first
contribution in
[https://github.com/reduxjs/redux-toolkit/pull/4173](https://github.com/reduxjs/redux-toolkit/pull/4173)
- [@​721-atikshaikh](https://github.com/721-atikshaikh) made
their first contribution in
[https://github.com/reduxjs/redux-toolkit/pull/4174](https://github.com/reduxjs/redux-toolkit/pull/4174)
- [@​smff](https://github.com/smff) made their first
contribution in
[https://github.com/reduxjs/redux-toolkit/pull/4186](https://github.com/reduxjs/redux-toolkit/pull/4186)
- [@​ffluk3](https://github.com/ffluk3) made their first
contribution in
[https://github.com/reduxjs/redux-toolkit/pull/4189](https://github.com/reduxjs/redux-toolkit/pull/4189)
**Full Changelog**:
https://github.com/reduxjs/redux-toolkit/compare/v2.1.0...v2.2.0
###
[`v2.1.0`](https://github.com/reduxjs/redux-toolkit/releases/tag/v2.1.0)
[Compare
Source](https://github.com/reduxjs/redux-toolkit/compare/v2.0.1...v2.1.0)
This *minor release*:
- adds withTypes methods to `listenerMiddleware` and
`createDraftSafeSelector`
- adds a `skipPollingIfUnfocused` option to RTK Query
- adds the ability to customise the `createSelector` instance used by
RTK Query
- reworks slice selector logic to avoid depending on `this` value
- fixes the order and inference of `create.asyncThunk` type parameters
- fixes requirements for meta fields returned from `queryFn`s
- marks promises that will never reject as safe, in preparation for
[https://github.com/typescript-eslint/typescript-eslint/issues/7008](https://github.com/typescript-eslint/typescript-eslint/issues/7008)
#### What's Changed
- Update docs to avoid circular type by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3948](https://github.com/reduxjs/redux-toolkit/pull/3948)
- Copy "Migrating to Modern Redux" and "RTK is Redux" docs from core
site by [@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3956](https://github.com/reduxjs/redux-toolkit/pull/3956)
- Fix store path rtk-query pokemon api tutorial by
[@​suspiciousRaccoon](https://github.com/suspiciousRaccoon) in
[https://github.com/reduxjs/redux-toolkit/pull/3611](https://github.com/reduxjs/redux-toolkit/pull/3611)
- tweak RTKQ without hooks section, and add note regarding memoization
by [@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3963](https://github.com/reduxjs/redux-toolkit/pull/3963)
- Add section regarding overriding deps by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3968](https://github.com/reduxjs/redux-toolkit/pull/3968)
- Add section re: RR custom context typing change by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3995](https://github.com/reduxjs/redux-toolkit/pull/3995)
- Add Expo demo app to CI workflow by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/3985](https://github.com/reduxjs/redux-toolkit/pull/3985)
- docs: fix a typo in queries markdown file by
[@​fatihgnc](https://github.com/fatihgnc) in
[https://github.com/reduxjs/redux-toolkit/pull/4013](https://github.com/reduxjs/redux-toolkit/pull/4013)
- Preserve nullable store state type by avoiding intersection with {} by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4011](https://github.com/reduxjs/redux-toolkit/pull/4011)
- Upgrade version of "graphql-request" by
[@​phryneas](https://github.com/phryneas) in
[https://github.com/reduxjs/redux-toolkit/pull/4026](https://github.com/reduxjs/redux-toolkit/pull/4026)
- \[graphql-request-base-query] update RTK peerDependency by
[@​phryneas](https://github.com/phryneas) in
[https://github.com/reduxjs/redux-toolkit/pull/4027](https://github.com/reduxjs/redux-toolkit/pull/4027)
- fix: improve selectFromResult memoization by
[@​thisjeremiah](https://github.com/thisjeremiah) in
[https://github.com/reduxjs/redux-toolkit/pull/4029](https://github.com/reduxjs/redux-toolkit/pull/4029)
- Rename "createSliceWithThunks" and "createThunkSlice" to
"createAppSlice" by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4035](https://github.com/reduxjs/redux-toolkit/pull/4035)
- Bump Vitest to latest version by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4047](https://github.com/reduxjs/redux-toolkit/pull/4047)
- fix inference and order of async thunk generics by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4061](https://github.com/reduxjs/redux-toolkit/pull/4061)
- Fix markdown links on Next.js page by
[@​DmitryScaletta](https://github.com/DmitryScaletta) in
[https://github.com/reduxjs/redux-toolkit/pull/4069](https://github.com/reduxjs/redux-toolkit/pull/4069)
- Introduce pre-typed listener middleware via
`listenerMiddleware.withTypes<RootState, AppDispatch>()` method by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4049](https://github.com/reduxjs/redux-toolkit/pull/4049)
- Add `.withTypes` to `createDraftSafeSelector` by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4080](https://github.com/reduxjs/redux-toolkit/pull/4080)
- Task/remove all settled by
[@​bever1337](https://github.com/bever1337) in
[https://github.com/reduxjs/redux-toolkit/pull/3917](https://github.com/reduxjs/redux-toolkit/pull/3917)
- Allow customising createSelector instance used by RTKQ by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4048](https://github.com/reduxjs/redux-toolkit/pull/4048)
- cacheLifecycle fix for fixedCacheKey in mutationThunk by
[@​riqts](https://github.com/riqts) in
[https://github.com/reduxjs/redux-toolkit/pull/4082](https://github.com/reduxjs/redux-toolkit/pull/4082)
- avoid relying on `this` in createSlice by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4071](https://github.com/reduxjs/redux-toolkit/pull/4071)
- documentation: fix grammar in redux and redux toolkit comparison by
[@​untilhamza](https://github.com/untilhamza) in
[https://github.com/reduxjs/redux-toolkit/pull/4086](https://github.com/reduxjs/redux-toolkit/pull/4086)
- Update `tsconfig.typetests.json` to include all TS files by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4091](https://github.com/reduxjs/redux-toolkit/pull/4091)
- Remove abort event listner for AbortController by
[@​Fonger](https://github.com/Fonger) in
[https://github.com/reduxjs/redux-toolkit/pull/3951](https://github.com/reduxjs/redux-toolkit/pull/3951)
- Docs: unused value 'isRejected' in code snippet by
[@​alphonsotran](https://github.com/alphonsotran) in
[https://github.com/reduxjs/redux-toolkit/pull/3301](https://github.com/reduxjs/redux-toolkit/pull/3301)
- fix/kitchen-sink-isAuthenticated: fixed isAuthenticated state change
on login fullfilled by
[@​shrijan00003](https://github.com/shrijan00003) in
[https://github.com/reduxjs/redux-toolkit/pull/3588](https://github.com/reduxjs/redux-toolkit/pull/3588)
- Fix `composeWithDevTools` spy by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4093](https://github.com/reduxjs/redux-toolkit/pull/4093)
- require queryFn meta to match base query by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4098](https://github.com/reduxjs/redux-toolkit/pull/4098)
- Added 'SafePromise' branded Promises for createAsyncThunk by
[@​JoshuaKGoldberg](https://github.com/JoshuaKGoldberg) in
[https://github.com/reduxjs/redux-toolkit/pull/4102](https://github.com/reduxjs/redux-toolkit/pull/4102)
- Add React Native demo app to CI workflow by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/3984](https://github.com/reduxjs/redux-toolkit/pull/3984)
- Modernize unit test setup by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4114](https://github.com/reduxjs/redux-toolkit/pull/4114)
- Add missing reducer field to ConfigureStoreOptions docs by
[@​nickgirardo](https://github.com/nickgirardo) in
[https://github.com/reduxjs/redux-toolkit/pull/4116](https://github.com/reduxjs/redux-toolkit/pull/4116)
- Option for queries to pause polling when unfocused by
[@​riqts](https://github.com/riqts) in
[https://github.com/reduxjs/redux-toolkit/pull/4055](https://github.com/reduxjs/redux-toolkit/pull/4055)
#### New Contributors
- [@​suspiciousRaccoon](https://github.com/suspiciousRaccoon)
made their first contribution in
[https://github.com/reduxjs/redux-toolkit/pull/3611](https://github.com/reduxjs/redux-toolkit/pull/3611)
- [@​fatihgnc](https://github.com/fatihgnc) made their first
contribution in
[https://github.com/reduxjs/redux-toolkit/pull/4013](https://github.com/reduxjs/redux-toolkit/pull/4013)
- [@​thisjeremiah](https://github.com/thisjeremiah) made their
first contribution in
[https://github.com/reduxjs/redux-toolkit/pull/4029](https://github.com/reduxjs/redux-toolkit/pull/4029)
- [@​riqts](https://github.com/riqts) made their first
contribution in
[https://github.com/reduxjs/redux-toolkit/pull/4082](https://github.com/reduxjs/redux-toolkit/pull/4082)
- [@​untilhamza](https://github.com/untilhamza) made their first
contribution in
[https://github.com/reduxjs/redux-toolkit/pull/4086](https://github.com/reduxjs/redux-toolkit/pull/4086)
- [@​Fonger](https://github.com/Fonger) made their first
contribution in
[https://github.com/reduxjs/redux-toolkit/pull/3951](https://github.com/reduxjs/redux-toolkit/pull/3951)
- [@​alphonsotran](https://github.com/alphonsotran) made their
first contribution in
[https://github.com/reduxjs/redux-toolkit/pull/3301](https://github.com/reduxjs/redux-toolkit/pull/3301)
- [@​shrijan00003](https://github.com/shrijan00003) made their
first contribution in
[https://github.com/reduxjs/redux-toolkit/pull/3588](https://github.com/reduxjs/redux-toolkit/pull/3588)
- [@​JoshuaKGoldberg](https://github.com/JoshuaKGoldberg) made
their first contribution in
[https://github.com/reduxjs/redux-toolkit/pull/4102](https://github.com/reduxjs/redux-toolkit/pull/4102)
- [@​nickgirardo](https://github.com/nickgirardo) made their
first contribution in
[https://github.com/reduxjs/redux-toolkit/pull/4116](https://github.com/reduxjs/redux-toolkit/pull/4116)
**Full Changelog**:
https://github.com/reduxjs/redux-toolkit/compare/v2.0.1...v2.1.0
###
[`v2.0.1`](https://github.com/reduxjs/redux-toolkit/compare/v2.0.0...v2.0.1)
[Compare
Source](https://github.com/reduxjs/redux-toolkit/compare/v2.0.0...v2.0.1)
###
[`v2.0.0`](https://github.com/reduxjs/redux-toolkit/releases/tag/v2.0.0)
[Compare
Source](https://github.com/reduxjs/redux-toolkit/compare/v1.9.7...v2.0.0)
This **major release** :
- Removes the deprecated object syntax from `createSlice` and
`createReducer`
- Removes other deprecated options
- Updates the `middleware` and `enhancers` options of `configureStore`
to require callbacks
- Updates the packaging for better ESM/CJS compatibility and modernizes
the build output
- Includes all changes to [Redux core
5.0](https://github.com/reduxjs/redux/releases/tag/v5.0.0), [Reselect
5.0](https://github.com/reduxjs/reselect/releases/tag/v5.0.0), and
[Redux Thunk
3.0](https://github.com/reduxjs/redux-thunk/releases/tag/v3.0.0)
- Updates RTKQ default subscription behavior
- Adds a new `combineSlices` method with support for lazy-loading slice
reducers
- Adds a new "dynamic middleware" middleware with support for adding
middleware at runtime
- Adds a new callback syntax to `createSlice.reducers`, with optional
support for defining thunks inside of `createSlice`
- Adds the `autoBatchEnhancer` to `configureStore` by default
- Has many additional TS tweaks and improvements
This release has **breaking changes**. (Note: v2.0.1 was released with a
couple hotfixes for Reselect and Redux Thunk right as this was being
finalized.)
This release is part of a wave of major versions of all the Redux
packages: **Redux Toolkit 2.0, Redux core 5.0, React-Redux 9.0, Reselect
5.0, and Redux Thunk 3.0**.
For full details on all of the breaking changes and other significant
changes to all of those packages, see the **["Migrating to RTK 2.0 and
Redux 5.0" migration
guide](https://redux.js.org/usage/migrations/migrating-rtk-2)** in the
Redux docs.
> \[!NOTE]
> The Redux core, Reselect, and Redux Thunk packages are included as
part of Redux Toolkit, and RTK users do not need to manually upgrade
them - you'll get them as part of the upgrade to RTK 2.0. (If you're not
using Redux Toolkit yet, [**please start migrating your existing legacy
Redux code to use Redux Toolkit
today!**](https://redux.js.org/usage/migrating-to-modern-redux))
```bash
##### RTK
npm install @​reduxjs/toolkit
yarn add @​reduxjs/toolkit
```
##### Changelog
##### Object syntax for `createSlice.extraReducers` and `createReducer`
removed
RTK's `createReducer` API was originally designed to accept a lookup
table of action type strings to case reducers, like `{ "ADD_TODO":
(state, action) => {} }`. We later added the "builder callback" form to
allow more flexibility in adding "matchers" and a default handler, and
did the same for `createSlice.extraReducers`.
We have removed the "object" form for both `createReducer` and
`createSlice.extraReducers` in RTK 2.0, as the builder callback form is
effectively the same number of lines of code, and works much better with
TypeScript.
As an example, this:
```ts
const todoAdded = createAction('todos/todoAdded')
createReducer(initialState, {
[todoAdded]: (state, action) => {},
})
createSlice({
name,
initialState,
reducers: {
/* case reducers here */
},
extraReducers: {
[todoAdded]: (state, action) => {},
},
})
```
should be migrated to:
```ts
createReducer(initialState, (builder) => {
builder.addCase(todoAdded, (state, action) => {})
})
createSlice({
name,
initialState,
reducers: {
/* case reducers here */
},
extraReducers: (builder) => {
builder.addCase(todoAdded, (state, action) => {})
},
})
```
##### Codemods
To simplify upgrading codebases, we've published a set of codemods that
will automatically transform the deprecated "object" syntax into the
equivalent "builder" syntax.
The codemods package is available on NPM as
[`@reduxjs/rtk-codemods`](https://www.npmjs.com/package/@​reduxjs/rtk-codemods).
More details are available [here](../api/codemods).
To run the codemods against your codebase, run `npx
@​reduxjs/rtk-codemods <TRANSFORM NAME> path/of/files/
or/some**/*glob.js.`
Examples:
```sh
npx @​reduxjs/rtk-codemods createReducerBuilder ./src
npx @​reduxjs/rtk-codemods createSliceBuilder ./packages/my-app/**/*.ts
```
We also recommend re-running Prettier on the codebase before committing
the changes.
These codemods should work, but we would greatly appreciate feedback
from more real-world codebases!
##### `configureStore` Options Changes
##### `configureStore.middleware` must be a callback
Since the beginning, `configureStore` has accepted a direct array value
as the `middleware` option. However, providing an array directly
prevents `configureStore` from calling `getDefaultMiddleware()`. So,
`middleware: [myMiddleware]` means there is no thunk middleware added
(or any of the dev-mode checks).
This is a footgun, and we've had numerous users accidentally do this and
cause their apps to fail because the default middleware never got
configured.
As a result, we've now made the `middleware` only accept the callback
form. *If* for some reason you still want to replace *all* of the
built-in middleware, do so by returning an array from the callback:
```ts
const store = configureStore({
reducer,
middleware: (getDefaultMiddleware) => {
// WARNING: this means that _none_ of the default middleware are added!
return [myMiddleware]
// or for TS users, use:
// return new Tuple(myMiddleware)
},
})
```
But note that **we consistently recommend not replacing the default
middleware entirely**, and that you should use `return
getDefaultMiddleware().concat(myMiddleware)`.
##### `configureStore.enhancers` must be a callback
Similarly to `configureStore.middleware`, the `enhancers` field must
also be a callback, for the same reasons.
The callback will receive a `getDefaultEnhancers` function that can be
used to customise the batching enhancer [that's now included by
default](#configurestore-adds-autobatchenhancer-by-default).
For example:
```ts
const store = configureStore({
reducer,
enhancers: (getDefaultEnhancers) => {
return getDefaultEnhancers({
autoBatch: { type: 'tick' },
}).concat(myEnhancer)
},
})
```
It's important to note that the result of `getDefaultEnhancers` will
**also** contain the middleware enhancer created with any
configured/default middleware. To help prevent mistakes,
`configureStore` will log an error to console if middleware was provided
and the middleware enhancer wasn't included in the callback result.
```ts
const store = configureStore({
reducer,
enhancers: (getDefaultEnhancers) => {
return [myEnhancer] // we've lost the middleware here
// instead:
return getDefaultEnhancers().concat(myEnhancer)
},
})
```
Also, note that **if you supply the `enhancers` field, it *must* come
*after* the `middleware` field in order for TS inference to work
properly**.
##### Standalone `getDefaultMiddleware` and `getType` removed
The standalone version of `getDefaultMiddleware` has been deprecated
since v1.6.1, and has now been removed. Use the function passed to the
`middleware` callback instead, which has the correct types.
We have also removed the `getType` export, which was used to extract a
type string from action creators made with `createAction`. Instead, use
the static property `actionCreator.type`.
##### RTK Query behaviour changes
We've had a number of reports where RTK Query had issues around usage of
`dispatch(endpoint.initiate(arg, {subscription: false}))`. There were
also reports that multiple triggered lazy queries were resolving the
promises at the wrong time. Both of these had the same underlying issue,
which was that RTKQ wasn't tracking cache entries in these cases
(intentionally). We've reworked the logic to always track cache entries
(and remove them as needed), which should resolve those behavior issues.
We also have had issues raised about trying to run multiple mutations in
a row and how tag invalidation behaves. RTKQ now has internal logic to
delay tag invalidation briefly, to allow multiple invalidations to get
handled together. This is controlled by a new `invalidationBehavior:
'immediate' | 'delayed'` flag on `createApi`. The new default behavior
is `'delayed'`. Set it to `'immediate'` to revert to the behavior in RTK
1.9.
In RTK 1.9, we reworked RTK Query's internals to keep most of the
subscription status inside the RTKQ middleware. The values are still
synced to the Redux store state, but this is primarily for display by
the Redux DevTools "RTK Query" panel. Related to the cache entry changes
above, we've optimized how often those values get synced to the Redux
state for perf.
##### ESM/CJS Package Compatibility
The biggest theme of the Redux v5 and RTK 2.0 releases is trying to get
"true" ESM package publishing compatibility in place, while still
supporting CJS in the published package.
**The primary build artifact is now an ESM file,
`dist/redux-toolkit.modern.mjs`**. Most build tools should pick this up.
There's also a CJS artifact, and a second copy of the ESM file named
`redux-toolkit.legacy-esm.js` to support Webpack 4 (which does not
recognize the `exports` field in `package.json`). Additionally, all of
the build artifacts now live under `./dist/` in the published package.
##### Modernized Build Output
We now publish modern JS syntax targeting ES2020, including optional
chaining, object spread, and other modern syntax. If you need to
##### Build Tooling
We're now building the package using https://github.com/egoist/tsup. We
also now include sourcemaps for the ESM and CJS artifacts.
##### Dropping UMD Builds
Redux has always shipped with UMD build artifacts. These are primarily
meant for direct import as script tags, such as in a CodePen or a
no-bundler build environment.
We've dropped those build artifacts from the published package, on the
grounds that the use cases seem pretty rare today.
There's now a `redux-toolkit.browser.mjs` file in the package that can
be loaded from a CDN like Unpkg.
If you have strong use cases for us continuing to include UMD build
artifacts, please let us know!
##### Dependency Updates
##### Redux Libraries
RTK now depends on **[Redux core
5.0](https://github.com/reduxjs/redux/releases/tag/v5.0.0), [Reselect
5.0](https://github.com/reduxjs/reselect/releases/tag/v5.0.0), and
[Redux Thunk
3.0](https://github.com/reduxjs/redux-thunk/releases/tag/v3.0.0)**.
See the linked release notes for those libraries, as **each of them has
additional breaking changes**. The ["Migrating to RTK 2.0 and Redux 5.0"
docs page](https://redux.js.org/usage/migrations/migrating-rtk-2) also
covers the combined changes in one page
##### Immer 10
RTK now also depends on [Immer
10.0](https://github.com/immerjs/immer/releases/tag/v10.0.0), which
has several major improvements and updates:
- Much faster update perf
- Much smaller bundle size
- Better ESM/CJS package formatting
- No default export
- No ES5 fallback
We've also removed the prior call to automatically enable the Immer ES5
fallback mode any time RTK was loaded.
##### Other Changes
##### Bundle Size Optimizations
Redux 4.1.0 optimized its bundle size by [extracting error message
strings out of production
builds](https://github.com/reduxjs/redux/releases/tag/v4.1.0), based
on React's approach. We've applied the same technique to RTK. This saves
about 1000 bytes from prod bundles (actual benefits will depend on which
imports are being used).
We also noted that [ESBuild does not deduplicate imports when it bundles
source files](https://github.com/evanw/esbuild/issues/475), and this
was causing RTK Query's bundle to contain a dozen references to `import
{ } from "@​reduxjs/toolkit"`, including some of the same methods.
Manually deduplicating those saves about 600 bytes off the production
RTKQ artifact.
##### `reactHooksModule` custom hook configuration
Previously, custom versions of React Redux's hooks (`useSelector`,
`useDispatch`, and `useStore`) could be passed separately to
`reactHooksModule`, usually to enable using a different context to the
default `ReactReduxContext`.
In practicality, the react hooks module needs all three of these hooks
to be provided, and it became an easy mistake to only pass `useSelector`
and `useDispatch`, without `useStore`.
The module has now moved all three of these under the same configuration
key, and will check that all three are provided if the key is present.
```ts
// previously
const customCreateApi = buildCreateApi(
coreModule(),
reactHooksModule({
useDispatch: createDispatchHook(MyContext),
useSelector: createSelectorHook(MyContext),
useStore: createStoreHook(MyContext),
})
)
// now
const customCreateApi = buildCreateApi(
coreModule(),
reactHooksModule({
hooks: {
useDispatch: createDispatchHook(MyContext),
useSelector: createSelectorHook(MyContext),
useStore: createStoreHook(MyContext),
},
})
)
```
##### Deprecated Options Removed
Several other options were previously marked as deprecated, and have
been removed. We've also removed polyfills like the `AbortController`
polyfill.
##### TypeScript Changes
##### `configureStore` field order for `middleware` matters
If you are passing *both* the `middleware` and `enhancers` fields to
`configureStore`, the `middleware` field *must* come first in order for
internal TS inference to work properly.
##### Non-default middleware/enhancers must use `Tuple`
We've seen many cases where users passing the `middleware` parameter to
configureStore have tried spreading the array returned by
`getDefaultMiddleware()`, or passed an alternate plain array. This
unfortunately loses the exact TS types from the individual middleware,
and often causes TS problems down the road (such as `dispatch` being
typed as `Dispatch<AnyAction>` and not knowing about thunks).
`getDefaultMiddleware()` already used an internal `MiddlewareArray`
class, an `Array` subclass that had strongly typed `.concat/prepend()`
methods to correctly capture and retain the middleware types.
We've renamed that type to `Tuple`, and `configureStore`'s TS types now
require that you *must* use `Tuple` if you want to pass your own array
of middleware:
```ts
import { configureStore, Tuple } from '@​reduxjs/toolkit'
configureStore({
reducer: rootReducer,
middleware: (getDefaultMiddleware) => new Tuple(additionalMiddleware, logger),
})
```
(Note that this has no effect if you're using RTK with plain JS, and you
could still pass a plain array here.)
This same restriction applies to the `enhancers` field.
##### Entity adapter type updates
`createEntityAdapter` now has an `Id` generic argument, which will be
used to strongly type the item IDs anywhere those are exposed.
Previously, the ID field type was always `string | number`. TS will now
try to infer the exact type from either the `.id` field of your entity
type, or the `selectId` return type. You could also fall back to passing
that generic type directly. **If you use the `EntityState<Data, Id>`
type directly, you *must* supply both generic arguments!**
The `.entities` lookup table is now defined to use a standard TS
`Record<Id, MyEntityType>`, which assumes that each item lookup exists
by default. Previously, it used a `Dictionary<MyEntityType>` type, which
assumed the result was `MyEntityType | undefined`. The `Dictionary` type
has been removed.
If you prefer to assume that the lookups *might* be undefined, use
TypeScript's `noUncheckedIndexedAccess` configuration option to control
that.
##### New Features
These features are new in Redux Toolkit 2.0, and help cover additional
use cases that we've seen users ask for in the ecosystem.
##### `combineSlices` API with slice reducer injection for
code-splitting
The Redux core has always included `combineReducers`, which takes an
object full of "slice reducer" functions and generates a reducer that
calls those slice reducers. RTK's `createSlice` generates slice reducers
+ associated action creators, and we've taught the pattern of exporting
individual action creators as named exports and the slice reducer as a
default export. Meanwhile, we've never had official support for
lazy-loading reducers, although we've had [sample code for some "reducer
injection" patterns in our
docs](https://redux.js.org/usage/code-splitting).
This release includes a new [`combineSlices`](../api/combineSlices) API
that is designed to enable lazy-loading of reducers at runtime. It
accepts individual slices or an object full of slices as arguments, and
automatically calls `combineReducers` using the `sliceObject.name` field
as the key for each state field. The generated reducer function has an
additional `.inject()` method attached that can be used to dynamically
inject additional slices at runtime. It also includes a
`.withLazyLoadedSlices()` method that can be used to generate TS types
for reducers that will be added later. See
[#​2776](https://github.com/reduxjs/redux-toolkit/issues/2776)
for the original discussion around this idea.
For now, we are not building this into `configureStore`, so you'll need
to call `const rootReducer = combineSlices(.....)` yourself and pass
that to `configureStore({reducer: rootReducer})`.
**Basic usage: a mixture of slices and standalone reducers passed to
`combineSlices`**
```ts
const stringSlice = createSlice({
name: 'string',
initialState: '',
reducers: {},
})
const numberSlice = createSlice({
name: 'number',
initialState: 0,
reducers: {},
})
const booleanReducer = createReducer(false, () => {})
const api = createApi(/* */)
const combinedReducer = combineSlices(
stringSlice,
{
num: numberSlice.reducer,
boolean: booleanReducer,
},
api
)
expect(combinedReducer(undefined, dummyAction())).toEqual({
string: stringSlice.getInitialState(),
num: numberSlice.getInitialState(),
boolean: booleanReducer.getInitialState(),
api: api.reducer.getInitialState(),
})
```
**Basic slice reducer injection**
```ts
// Create a reducer with a TS type that knows `numberSlice` will be injected
const combinedReducer =
combineSlices(stringSlice).withLazyLoadedSlices<
WithSlice<typeof numberSlice>
>()
// `state.number` doesn't exist initially
expect(combinedReducer(undefined, dummyAction()).number).toBe(undefined)
// Create a version of the reducer with `numberSlice` injected (mainly useful for types)
const injectedReducer = combinedReducer.inject(numberSlice)
// `state.number` now exists, and injectedReducer's type no longer marks it as optional
expect(injectedReducer(undefined, dummyAction()).number).toBe(
numberSlice.getInitialState()
)
// original reducer has also been changed (type is still optional)
expect(combinedReducer(undefined, dummyAction()).number).toBe(
numberSlice.getInitialState()
)
```
##### `selectors` field in `createSlice`
The existing `createSlice` API now has support for defining
[`selectors`](../api/createSlice#selectors) directly as part of the
slice. By default, these will be generated with the assumption that the
slice is mounted in the root state using `slice.name` as the field, such
as `name: "todos"` -> `rootState.todos`. Additionally, there's now a
`slice.selectSlice` method that does that default root state lookup.
You can call `sliceObject.getSelectors(selectSliceState)` to generate
the selectors with an alternate location, similar to how
`entityAdapter.getSelectors()` works.
```ts
const slice = createSlice({
name: 'counter',
initialState: 42,
reducers: {},
selectors: {
selectSlice: (state) => state,
selectMultiple: (state, multiplier: number) => state * multiplier,
},
})
// Basic usage
const testState = {
[slice.name]: slice.getInitialState(),
}
const { selectSlice, selectMultiple } = slice.selectors
expect(selectSlice(testState)).toBe(slice.getInitialState())
expect(selectMultiple(testState, 2)).toBe(slice.getInitialState() * 2)
// Usage with the slice reducer mounted under a different key
const customState = {
number: slice.getInitialState(),
}
const { selectSlice, selectMultiple } = slice.getSelectors(
(state: typeof customState) => state.number
)
expect(selectSlice(customState)).toBe(slice.getInitialState())
expect(selectMultiple(customState, 2)).toBe(slice.getInitialState() * 2)
```
##### `createSlice.reducers` callback syntax and thunk support
One of the oldest feature requests we've had is the ability to declare
thunks directly inside of `createSlice`. Until now, you've always had to
declare them separately, give the thunk a string action prefix, and
handle the actions via `createSlice.extraReducers`:
```ts
// Declare the thunk separately
const fetchUserById = createAsyncThunk(
'users/fetchByIdStatus',
async (userId: number, thunkAPI) => {
const response = await userAPI.fetchById(userId)
return response.data
}
)
const usersSlice = createSlice({
name: 'users',
initialState,
reducers: {
// standard reducer logic, with auto-generated action types per reducer
},
extraReducers: (builder) => {
// Add reducers for additional action types here, and handle loading state as needed
builder.addCase(fetchUserById.fulfilled, (state, action) => {
state.entities.push(action.payload)
})
},
})
```
Many users have told us that this separation feels awkward.
We've *wanted* to include a way to define thunks directly inside of
`createSlice`, and have played around with various prototypes. There
were always two major blocking issues, and a secondary concern:
1. It wasn't clear what the syntax for declaring a thunk inside should
look like.
2. Thunks have access to `getState` and `dispatch`, but the `RootState`
and `AppDispatch` types are normally inferred from the store, which in
turn infers it from the slice state types. Declaring thunks inside
`createSlice` would cause circular type inference errors, as the store
needs the slice types but the slice needs the store types. We weren't
willing to ship an API that would work okay for our JS users but not for
our TS users, especially since we *want* people to use TS with RTK.
3. You can't do synchronous conditional imports in ES modules, and
there's no good way to make the `createAsyncThunk` import optional.
Either `createSlice` always depends on it (and adds that to the bundle
size), or it can't use `createAsyncThunk` at all.
We've settled on these compromises:
- **In order to create async thunks with `createSlice`, you specifically
need to [set up a custom version of `createSlice` that has access to
`createAsyncThunk`](../api/createSlice#createasyncthunk)**.
- You can declare thunks inside of `createSlice.reducers`, by using a
"creator callback" syntax for the `reducers` field that is similar to
the `build` callback syntax in RTK Query's `createApi` (using typed
functions to create fields in an object). Doing this does look a bit
different than the existing "object" syntax for the `reducers` field,
but is still fairly similar.
- You can customize *some* of the types for thunks inside of
`createSlice`, but you *cannot* customize the `state` or `dispatch`
types. If those are needed, you can manually do an `as` cast, like
`getState() as RootState`.
In practice, we hope these are reasonable tradeoffs. Creating thunks
inside of `createSlice` has been widely asked for, so we think it's an
API that will see usage. If the TS customization options are a
limitation, you can still declare thunks outside of `createSlice` as
always, and most async thunks don't need `dispatch` or `getState` - they
just fetch data and return. And finally, setting up a custom
`createSlice` allows you to opt into `createAsyncThunk` being included
in your bundle size (though it may already be included if used directly
or as part of RTK Query - in either of these cases there's no
*additional* bundle size).
Here's what the new callback syntax looks like:
```ts
const createSliceWithThunks = buildCreateSlice({
creators: { asyncThunk: asyncThunkCreator },
})
const todosSlice = createSliceWithThunks({
name: 'todos',
initialState: {
loading: false,
todos: [],
error: null,
} as TodoState,
reducers: (create) => ({
// A normal "case reducer", same as always
deleteTodo: create.reducer((state, action: PayloadAction<number>) => {
state.todos.splice(action.payload, 1)
}),
// A case reducer with a "prepare callback" to customize the action
addTodo: create.preparedReducer(
(text: string) => {
const id = nanoid()
return { payload: { id, text } }
},
// action type is inferred from prepare callback
(state, action) => {
state.todos.push(action.payload)
}
),
// An async thunk
fetchTodo: create.asyncThunk(
// Async payload function as the first argument
async (id: string, thunkApi) => {
const res = await fetch(`myApi/todos?id=${id}`)
return (await res.json()) as Item
},
// An object containing `{pending?, rejected?, fulfilled?, settled?, options?}` second
{
pending: (state) => {
state.loading = true
},
rejected: (state, action) => {
state.error = action.payload ?? action.error
},
fulfilled: (state, action) => {
state.todos.push(action.payload)
},
// settled is called for both rejected and fulfilled actions
settled: (state, action) => {
state.loading = false
},
}
),
}),
})
// `addTodo` and `deleteTodo` are normal action creators.
// `fetchTodo` is the async thunk
export const { addTodo, deleteTodo, fetchTodo } = todosSlice.actions
```
##### Codemod
**Using the new callback syntax is entirely optional (the object syntax
is still standard)**, but an existing slice would need to be converted
before it can take advantage of the new capabilities this syntax
provides. To make this easier, a [codemod](../api/codemods) is provided.
```sh
npx @​reduxjs/rtk-codemods createSliceReducerBuilder ./src/features/todos/slice.ts
```
##### "Dynamic middleware" middleware
A Redux store's middleware pipeline is fixed at store creation time and
can't be changed later. We *have* seen ecosystem libraries that tried to
allow dynamically adding and removing middleware, potentially useful for
things like code splitting.
This is a relatively niche use case, but we've built [our own version of
a "dynamic middleware" middleware](../api/createDynamicMiddleware). Add
it to the Redux store at setup time, and it lets you add middleware
later at runtime. It also comes with a [React hook integration that will
automatically add a middleware to the store and return the updated
dispatch method.](../api/createDynamicMiddleware#react-integration).
```ts
import { createDynamicMiddleware, configureStore } from '@​reduxjs/toolkit'
const dynamicMiddleware = createDynamicMiddleware()
const store = configureStore({
reducer: {
todos: todosReducer,
},
middleware: (getDefaultMiddleware) =>
getDefaultMiddleware().prepend(dynamicMiddleware.middleware),
})
// later
dynamicMiddleware.addMiddleware(someOtherMiddleware)
```
##### `configureStore` adds `autoBatchEnhancer` by default
[In v1.9.0, we added a new
`autoBatchEnhancer`](https://github.com/reduxjs/redux-toolkit/releases/tag/v1.9.0)
that delays notifying subscribers briefly when multiple "low-priority"
actions are dispatched in a row. This improves perf, as UI updates are
typically the most expensive part of the update process. RTK Query marks
most of its own internal actions as "low-pri" by default, but you have
to have the `autoBatchEnhancer` added to the store to benefit from that.
We've updated `configureStore` to add the `autoBatchEnhancer` to the
store setup by default, so that users can benefit from the improved perf
without needing to manually tweak the store config themselves.
##### `entityAdapter.getSelectors` accepts a `createSelector` function
[`entityAdapter.getSelectors()`](../api/createEntityAdapter#selector-functions)
now accepts an options object as its second argument. This allows you to
pass in your own preferred `createSelector` method, which will be used
to memoize the generated selectors. This could be useful if you want to
use one of Reselect's new alternate memoizers, or some other memoization
library with an equivalent signature.
##### Next.js Setup Guide
We now have a docs page that covers [how to set up Redux properly with
Next.js](https://redux.js.org/usage/nextjs). We've seen a lot of
questions around using Redux, Next, and the App Router together, and
this guide should help provide advice.
(At this time, the Next.js `with-redux` example is still showing
outdated patterns - we're going to file a PR shortly to update that to
match our docs guide.)
##### What's Changed
- Remove legacy object syntax for reducers by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3051](https://github.com/reduxjs/redux-toolkit/pull/3051)
- Upgrade build tooling by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3088](https://github.com/reduxjs/redux-toolkit/pull/3088)
- Migrate the RTK package to be full ESM by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3095](https://github.com/reduxjs/redux-toolkit/pull/3095)
- Migrate RTK test suite from Jest to Vitest by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3102](https://github.com/reduxjs/redux-toolkit/pull/3102)
- Fix type errors after upgrading to Redux 5 alpha by
[@​Methuselah96](https://github.com/Methuselah96) in
[https://github.com/reduxjs/redux-toolkit/pull/3177](https://github.com/reduxjs/redux-toolkit/pull/3177)
- Bump Redux dep to 5.0.0-alpha.2 by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3170](https://github.com/reduxjs/redux-toolkit/pull/3170)
- Test published artifacts in CI by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3213](https://github.com/reduxjs/redux-toolkit/pull/3213)
- Merge RTK CI examples into `v2.0-integration` by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3253](https://github.com/reduxjs/redux-toolkit/pull/3253)
- Add `arethetypeswrong` automated CLI check by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3294](https://github.com/reduxjs/redux-toolkit/pull/3294)
- update tip regarding overrideExisting to match actual behaviour by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3305](https://github.com/reduxjs/redux-toolkit/pull/3305)
- Add `attw` CLI option to treat problems as non-errors by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3316](https://github.com/reduxjs/redux-toolkit/pull/3316)
- Rework build setup and hopefully fix ESM compat issues by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3318](https://github.com/reduxjs/redux-toolkit/pull/3318)
- Bump Immer to 10.0-beta by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3320](https://github.com/reduxjs/redux-toolkit/pull/3320)
- Switch build setup from a custom ESBuild+TS script to `tsup` by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3362](https://github.com/reduxjs/redux-toolkit/pull/3362)
- Use original instead of immer draft for perf by
[@​GeorchW](https://github.com/GeorchW) in
[https://github.com/reduxjs/redux-toolkit/pull/3270](https://github.com/reduxjs/redux-toolkit/pull/3270)
- enable enhanceEndpoints.transformResponse to override ResultType by
[@​dmitrigrabov](https://github.com/dmitrigrabov) in
[https://github.com/reduxjs/redux-toolkit/pull/2953](https://github.com/reduxjs/redux-toolkit/pull/2953)
- Fix global `responseHandler` being used in `fetchBaseQuery` by
[@​praxxis](https://github.com/praxxis) in
[https://github.com/reduxjs/redux-toolkit/pull/3137](https://github.com/reduxjs/redux-toolkit/pull/3137)
- reset internalState.currentSubscriptions on `resetApiState` by
[@​phryneas](https://github.com/phryneas) in
[https://github.com/reduxjs/redux-toolkit/pull/3333](https://github.com/reduxjs/redux-toolkit/pull/3333)
- Bump deps and mark `subscriptionUpdated` as autobatched by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3364](https://github.com/reduxjs/redux-toolkit/pull/3364)
- Redux 5alpha5 by [@​EskiMojo14](https://github.com/EskiMojo14)
in
[https://github.com/reduxjs/redux-toolkit/pull/3367](https://github.com/reduxjs/redux-toolkit/pull/3367)
- add isAction helper function, and ensure listener middleware only runs
for actions by [@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3372](https://github.com/reduxjs/redux-toolkit/pull/3372)
- Allow inference of enhancer state extensions, and fix inference when
using callback form by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3207](https://github.com/reduxjs/redux-toolkit/pull/3207)
- combineSlices implementation by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3297](https://github.com/reduxjs/redux-toolkit/pull/3297)
- Bump Immer to 10.0 final by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3376](https://github.com/reduxjs/redux-toolkit/pull/3376)
- Allow partial preloaded state for combined slice reducer and update
devDeps by [@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3381](https://github.com/reduxjs/redux-toolkit/pull/3381)
- ensure it's only possible to pass all or none of the hooks to
reactHooksModule by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3400](https://github.com/reduxjs/redux-toolkit/pull/3400)
- Remove remaining deprecated exports by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3398](https://github.com/reduxjs/redux-toolkit/pull/3398)
- create action creator middleware by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3414](https://github.com/reduxjs/redux-toolkit/pull/3414)
- Restore query status types by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3420](https://github.com/reduxjs/redux-toolkit/pull/3420)
- Implement auto fork joining by
[@​ericanderson](https://github.com/ericanderson) in
[https://github.com/reduxjs/redux-toolkit/pull/3407](https://github.com/reduxjs/redux-toolkit/pull/3407)
- types: make it easier to wrap createAsyncThunk by
[@​shrouxm](https://github.com/shrouxm) in
[https://github.com/reduxjs/redux-toolkit/pull/3393](https://github.com/reduxjs/redux-toolkit/pull/3393)
- Fixed Stackoverflow bug if children prop is a ref to root/parent
object by [@​cheprasov](https://github.com/cheprasov) in
[https://github.com/reduxjs/redux-toolkit/pull/3428](https://github.com/reduxjs/redux-toolkit/pull/3428)
- Add getDefaultEnhancers callback, and add autoBatchEnhancer to
defaults. by [@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3347](https://github.com/reduxjs/redux-toolkit/pull/3347)
- Update to Redux alpha 6 by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3442](https://github.com/reduxjs/redux-toolkit/pull/3442)
- Remove toString override from action creators, in favour of explicit
.type field. by [@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3425](https://github.com/reduxjs/redux-toolkit/pull/3425)
- Add "creator callback" syntax to slice reducer field, to allow for
async thunk creation by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3388](https://github.com/reduxjs/redux-toolkit/pull/3388)
- API for adding middleware dynamically by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3292](https://github.com/reduxjs/redux-toolkit/pull/3292)
- Add Id type parameter in createEntityAdapter by
[@​Matt-Ord](https://github.com/Matt-Ord) in
[https://github.com/reduxjs/redux-toolkit/pull/3187](https://github.com/reduxjs/redux-toolkit/pull/3187)
- Require usage of Tuple in TS by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3460](https://github.com/reduxjs/redux-toolkit/pull/3460)
- Require that enhancers is a callback by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3461](https://github.com/reduxjs/redux-toolkit/pull/3461)
- fix invalid createEntityAdapter call by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3490](https://github.com/reduxjs/redux-toolkit/pull/3490)
- Use Record\<EntityId, T> instead of Dictionary<T> by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3424](https://github.com/redux
</details>
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[](https://renovatebot.com) This PR contains the following updates: | Package | Change | Age | Adoption | Passing | Confidence | |---|---|---|---|---|---| | [@reduxjs/toolkit](https://redux-toolkit.js.org) ([source](https://github.com/reduxjs/redux-toolkit)) | [`1.9.2` -> `1.9.7`](https://renovatebot.com/diffs/npm/@reduxjs%2ftoolkit/1.9.2/1.9.7) | [](https://docs.renovatebot.com/merge-confidence/) | [](https://docs.renovatebot.com/merge-confidence/) | [](https://docs.renovatebot.com/merge-confidence/) | [](https://docs.renovatebot.com/merge-confidence/) | --- ### Release Notes <details> <summary>reduxjs/redux-toolkit (@​reduxjs/toolkit)</summary> ### [`v1.9.7`](https://github.com/reduxjs/redux-toolkit/releases/tag/v1.9.7) [Compare Source](https://github.com/reduxjs/redux-toolkit/compare/v1.9.6...v1.9.7) This bugfix release rewrites the RTKQ hook TS types to significantly improve TS perf. #### Changelog ##### RTKQ TS Perf A number of users had reported that Intellisense for RTKQ API objects was extremely slow (multiple seconds) - see discussion in [#​3214](https://github.com/reduxjs/redux-toolkit/issues/3214) . We did some perf investigation on user-provided examples, and concluded that the biggest factor to slow RTKQ TS perf was the calculation of hook names like `useGetPokemonQuery`, which was generating a large TS union of types. We've rewritten that hook names type calculation to use mapped types and a couple of intersections. In a specific user-provided stress test repo, it dropped TS calculation time by 60% (2600ms to 1000ms). There's more potential work we can do to improve things, but this seems like a major perf improvement worth shipping now. #### What's Changed - chore: Switch 4.9.2-rc to 4.9.5 since 4.9.5 has been released in TypeScript by [@​kahirokunn](https://github.com/kahirokunn) in [https://github.com/reduxjs/redux-toolkit/pull/3772](https://github.com/reduxjs/redux-toolkit/pull/3772) - Copy of "Work around known TS bug with type inference [#​3761](https://github.com/reduxjs/redux-toolkit/issues/3761)" by [@​julian-ford](https://github.com/julian-ford) in [https://github.com/reduxjs/redux-toolkit/pull/3777](https://github.com/reduxjs/redux-toolkit/pull/3777) - Rework named hooks type (v1.9) by [@​EskiMojo14](https://github.com/EskiMojo14) in [https://github.com/reduxjs/redux-toolkit/pull/3769](https://github.com/reduxjs/redux-toolkit/pull/3769) **Full Changelog**: reduxjs/redux-toolkit@v1.9.6...v1.9.7 ### [`v1.9.6`](https://github.com/reduxjs/redux-toolkit/releases/tag/v1.9.6) [Compare Source](https://github.com/reduxjs/redux-toolkit/compare/v1.9.5...v1.9.6) This bugfix release adds a new dev-mode middleware to catch accidentally dispatching an action creator, adds a new listener middleware option around waiting for forks, adds a new option to update provided tags when `updateQueryData` is used, reworks internal types to better handle uses with TS declaration output, and fixes a variety of small issues. ##### Changelog ##### Action Creator Dev Check Middleware RTK already includes dev-mode middleware that check for the common mistakes of accidentally mutating state and putting non-serializable values into state or actions. Over the years we've also seen a semi-frequent error where users accidentally pass an action creator reference to `dispatch`, instead of *calling* it and dispatching the action it returns. We've added another dev-mode middleware that specifically catches this error and warns about it. ##### Additional Options The listener middleware's `listenerApi.fork()` method now has an optional `autoJoin` flag that can be used to keep the effect from finishing until all active forked tasks have completed. `updateQueryData` now has an `updateProvidedTags` option that will force a recalculation of that endpoint's provided tags. It currently defaults to `false`, and we'll likely turn that to `true` in the next major. ##### Other Fixes The `builder.addCase` method now throws an error if a `type` string is empty. `fetchBaseQuery` now uses an alternate method to clone the original `Request` in order to work around an obscure Chrome bug. The immutability middleware logic was tweaked to avoid a potential stack overflow. ##### Types Changes The internal type imports have been reworked to try to fix "type portability" issues when used in combination with TS declaration outputs. A couple additional types were exported to help with wrapping `createAsyncThunk`. ##### What's Changed - create action creator middleware by [@​EskiMojo14](https://github.com/EskiMojo14) in [https://github.com/reduxjs/redux-toolkit/pull/3414](https://github.com/reduxjs/redux-toolkit/pull/3414) - Implement auto fork joining by [@​ericanderson](https://github.com/ericanderson) in [https://github.com/reduxjs/redux-toolkit/pull/3407](https://github.com/reduxjs/redux-toolkit/pull/3407) - types: make it easier to wrap createAsyncThunk by [@​shrouxm](https://github.com/shrouxm) in [https://github.com/reduxjs/redux-toolkit/pull/3393](https://github.com/reduxjs/redux-toolkit/pull/3393) - Fixed Stackoverflow bug if children prop is a ref to root/parent object by [@​cheprasov](https://github.com/cheprasov) in [https://github.com/reduxjs/redux-toolkit/pull/3428](https://github.com/reduxjs/redux-toolkit/pull/3428) - Fix TransformedResponse type to unwrap promise by [@​EskiMojo14](https://github.com/EskiMojo14) in [https://github.com/reduxjs/redux-toolkit/pull/3500](https://github.com/reduxjs/redux-toolkit/pull/3500) - Throw error when type is empty in builder.addCase by [@​chawes13](https://github.com/chawes13) in [https://github.com/reduxjs/redux-toolkit/pull/3572](https://github.com/reduxjs/redux-toolkit/pull/3572) - \[RED-23] fix: Updated type references to resolve portable types issue by [@​tdurnford](https://github.com/tdurnford) in [https://github.com/reduxjs/redux-toolkit/pull/3728](https://github.com/reduxjs/redux-toolkit/pull/3728) - add option to update provided tags by [@​dutzi](https://github.com/dutzi) in [https://github.com/reduxjs/redux-toolkit/pull/3255](https://github.com/reduxjs/redux-toolkit/pull/3255) - \[RED-26] Remove Request.clone() usage in fetchBaseQuery by [@​alex-vukov](https://github.com/alex-vukov) in [https://github.com/reduxjs/redux-toolkit/pull/3720](https://github.com/reduxjs/redux-toolkit/pull/3720) - Try working around TS 4.1 mismatch by [@​markerikson](https://github.com/markerikson) in [https://github.com/reduxjs/redux-toolkit/pull/3739](https://github.com/reduxjs/redux-toolkit/pull/3739) **Full Changelog**: reduxjs/redux-toolkit@v1.9.5...v1.9.6 ### [`v1.9.5`](https://github.com/reduxjs/redux-toolkit/releases/tag/v1.9.5) [Compare Source](https://github.com/reduxjs/redux-toolkit/compare/v1.9.4...v1.9.5) This bugfix release includes notable improvements to TS type inference when using the `enhancers` option in `configureStore`, and updates the listener middleware to only check predicates if the dispatched value is truly an action object. #### What's Changed - update to latest remark-typescript-tools by [@​EskiMojo14](https://github.com/EskiMojo14) in [https://github.com/reduxjs/redux-toolkit/pull/3311](https://github.com/reduxjs/redux-toolkit/pull/3311) - add isAction helper function, and ensure listener middleware only runs for actions by [@​EskiMojo14](https://github.com/EskiMojo14) in [https://github.com/reduxjs/redux-toolkit/pull/3372](https://github.com/reduxjs/redux-toolkit/pull/3372) - Allow inference of enhancer state extensions, and fix inference when using callback form by [@​EskiMojo14](https://github.com/EskiMojo14) in [https://github.com/reduxjs/redux-toolkit/pull/3207](https://github.com/reduxjs/redux-toolkit/pull/3207) **Full Changelog**: reduxjs/redux-toolkit@v1.9.4...v1.9.5 ### [`v1.9.4`](https://github.com/reduxjs/redux-toolkit/releases/tag/v1.9.4) [Compare Source](https://github.com/reduxjs/redux-toolkit/compare/v1.9.3...v1.9.4) This bugfix release includes tweaks to RTKQ options handling, tweaks for perf updates, dependency updates, and updates to our CI tooling. Also, please check out our ongoing RTK 2.0 alpha releases! They have significant improvements to bundle size, ESM/CJS compatibility, TS typings, and reducer update performance. We're looking for real-world feedback on behavior, performance, and any issues you might run into. #### Changelog ##### RTK Query Options Updates Passing `transformResponse` as part of `enhanceEndpoints` can now override the TS type of the original data. `fetchBaseQuery` now properly checks for a global `responseHandler` option. ##### Performance and Internals RTK Query now uses Immer's `original()` to do comparisons inside of `copyWithStructuralSharing`, which should significantly speed up performance when applying changes from re-fetched data. RTKQ's internal `subscriptionUpdated` action is now marked as batchable. We've updated dependencies to Immer 9.0.21, Reselect 4.1.8, and Redux 4.2.1. ##### CI Updates We've added a suite of example apps built with different frameworks such as CRA 4, CRA 5, Next, and Vite, as well as examples that check for compatibility in Node with CJS and ESM modes and with various TS module resolution modes. #### What's Changed - Test published artifacts in CI by [@​markerikson](https://github.com/markerikson) in [https://github.com/reduxjs/redux-toolkit/pull/3213](https://github.com/reduxjs/redux-toolkit/pull/3213) - Use Git revision in version and add Node CI examples by [@​markerikson](https://github.com/markerikson) in [https://github.com/reduxjs/redux-toolkit/pull/3258](https://github.com/reduxjs/redux-toolkit/pull/3258) - Add `arethetypeswrong` automated CLI check by [@​markerikson](https://github.com/markerikson) in [https://github.com/reduxjs/redux-toolkit/pull/3294](https://github.com/reduxjs/redux-toolkit/pull/3294) - Add `attw` CLI option to treat problems as non-errors by [@​markerikson](https://github.com/markerikson) in [https://github.com/reduxjs/redux-toolkit/pull/3316](https://github.com/reduxjs/redux-toolkit/pull/3316) - Use original instead of immer draft for perf by [@​GeorchW](https://github.com/GeorchW) in [https://github.com/reduxjs/redux-toolkit/pull/3270](https://github.com/reduxjs/redux-toolkit/pull/3270) - enable enhanceEndpoints.transformResponse to override ResultType by [@​dmitrigrabov](https://github.com/dmitrigrabov) in [https://github.com/reduxjs/redux-toolkit/pull/2953](https://github.com/reduxjs/redux-toolkit/pull/2953) - Fix global `responseHandler` being used in `fetchBaseQuery` by [@​praxxis](https://github.com/praxxis) in [https://github.com/reduxjs/redux-toolkit/pull/3137](https://github.com/reduxjs/redux-toolkit/pull/3137) - reset internalState.currentSubscriptions on `resetApiState` by [@​phryneas](https://github.com/phryneas) in [https://github.com/reduxjs/redux-toolkit/pull/3333](https://github.com/reduxjs/redux-toolkit/pull/3333) - Bump deps and mark `subscriptionUpdated` as autobatched by [@​markerikson](https://github.com/markerikson) in [https://github.com/reduxjs/redux-toolkit/pull/3364](https://github.com/reduxjs/redux-toolkit/pull/3364) **Full Changelog**: reduxjs/redux-toolkit@v1.9.3...v1.9.4 ### [`v1.9.3`](https://github.com/reduxjs/redux-toolkit/releases/tag/v1.9.3) [Compare Source](https://github.com/reduxjs/redux-toolkit/compare/v1.9.2...v1.9.3) This release fixes a couple issues with the `skip/skipToken` options for query hooks, and makes a small perf tweak to serializing query args. #### Changelog ##### Skip Behavior We made a change in [v1.9.0](https://github.com/reduxjs/redux-toolkit/releases/tag/v1.9.0) that tried to make some skip behavior more consistent, including clearing out the cached data. However, we had overlooked that our own docs actually said "skipping a query will *keep* the cached data", and several users pointed this out as they'd been relying on that behavior. We've reverted that change. Now, setting `{skip: true}` or `skipToken` for a query with existing results will keep the `data` value (reflecting the last successful query), but `currentData` will be undefined (reflecting the *current* settings). We also identified and fixed an issue that could cause subscription entries to leak under a specific combination of timing and settings changes. ##### Query Arg Serialization Perf RTKQ relies on serializing query arguments to serve as the cache keys, with the default using `JSON.stringify()` + some logic for sorting keys. There was a report that in some apps, large query arg objects could take a while to stringify and this was being done repeatedly. We've added a `WeakMap`-based cache for query args to avoid re-serializing existing arg values. #### What's Changed - Revert "clear data on skip" back to its original behavior by [@​markerikson](https://github.com/markerikson) in [https://github.com/reduxjs/redux-toolkit/pull/3188](https://github.com/reduxjs/redux-toolkit/pull/3188) - Use a WeakMap cache for query arg serialization for perf by [@​markerikson](https://github.com/markerikson) in [https://github.com/reduxjs/redux-toolkit/pull/3193](https://github.com/reduxjs/redux-toolkit/pull/3193) **Full Changelog**: reduxjs/redux-toolkit@v1.9.2...v1.9.3 </details> --- ### Configuration 📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined). 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this PR and you won't be reminded about this update again. --- - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box --- This PR has been generated by [Mend Renovate](https://www.mend.io/free-developer-tools/renovate/). View repository job log [here](https://developer.mend.io/github/realbrodiwhite/royalgames-client). <!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNy4yNjEuMCIsInVwZGF0ZWRJblZlciI6IjM3LjI2MS4wIiwidGFyZ2V0QnJhbmNoIjoibWFpbiJ9-->
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referenced
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in realbrodiwhite/royalgames-client
Mar 21, 2024
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This PR contains the following updates:
| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [@reduxjs/toolkit](https://redux-toolkit.js.org)
([source](https://github.com/reduxjs/redux-toolkit)) | [`^1.9.2` ->
`^2.0.0`](https://renovatebot.com/diffs/npm/@reduxjs%2ftoolkit/1.9.7/2.2.2)
|
[](https://docs.renovatebot.com/merge-confidence/)
|
[](https://docs.renovatebot.com/merge-confidence/)
|
[](https://docs.renovatebot.com/merge-confidence/)
|
[](https://docs.renovatebot.com/merge-confidence/)
|
---
### Release Notes
<details>
<summary>reduxjs/redux-toolkit (@​reduxjs/toolkit)</summary>
###
[`v2.2.2`](https://github.com/reduxjs/redux-toolkit/compare/v2.2.1...v2.2.2)
[Compare
Source](https://github.com/reduxjs/redux-toolkit/compare/v2.2.1...v2.2.2)
###
[`v2.2.1`](https://github.com/reduxjs/redux-toolkit/compare/v2.2.0...v2.2.1)
[Compare
Source](https://github.com/reduxjs/redux-toolkit/compare/v2.2.0...v2.2.1)
###
[`v2.2.0`](https://github.com/reduxjs/redux-toolkit/releases/tag/v2.2.0)
[Compare
Source](https://github.com/reduxjs/redux-toolkit/compare/v2.1.0...v2.2.0)
This *minor release*:
- Adds a second parameter to
`entityAdapter.getInitialState(additionalProps, entities)` to allow
prefilling state
- Equivalent to
`entityAdapter.setAll(entityAdapter.getInitialState(additionalProps),
entities)`
- First parameter can be `undefined` if no additional properties are
desired
- Allows initialising `combineSlices` with no static reducers
- Previously `const combinedReducer =
combineSlices().withLazyLoadedSlices<LazyLoadedSlices>()` would have
thrown an error
- Now returns a "no-op" reducer that just returns an empty object until
first reducer injected
- Allows a new `'throw'` value for `overrideExisting` in
`injectEndpoints`, which throws an error if a definition is injected
with a name which is already used
- Exports more type helpers for RTKQ hook and trigger types
- Exports types related to overriding result types in `enhanceEndpoints`
- Fixes state inference for injected slices when undeclared (i.e. not in
`LazyLoadedSlices`)
- Adds a `action.meta.arg.isPrefetch` value to query thunk actions when
prefetched
#### What's Changed
- Revamp type tests setup by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4095](https://github.com/reduxjs/redux-toolkit/pull/4095)
- Bump Prettier and Prettier related packages by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4126](https://github.com/reduxjs/redux-toolkit/pull/4126)
- Fix codemods to work with TypeScript 4.7+ by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4081](https://github.com/reduxjs/redux-toolkit/pull/4081)
- Export types related to overriding the result types by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4134](https://github.com/reduxjs/redux-toolkit/pull/4134)
- Migrate type tests to Vitest by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4127](https://github.com/reduxjs/redux-toolkit/pull/4127)
- Fix RetryOptions type test by flipping order by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4136](https://github.com/reduxjs/redux-toolkit/pull/4136)
- Format all files by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4135](https://github.com/reduxjs/redux-toolkit/pull/4135)
- \[Docs/Website] skipPollingIfUnfocused added to polling overview and
query options by [@​riqts](https://github.com/riqts) in
[https://github.com/reduxjs/redux-toolkit/pull/4131](https://github.com/reduxjs/redux-toolkit/pull/4131)
- \[Docs] Changed create.asyncThunk setup admonition to caution by
[@​riqts](https://github.com/riqts) in
[https://github.com/reduxjs/redux-toolkit/pull/4150](https://github.com/reduxjs/redux-toolkit/pull/4150)
- Temporarily revert node-fetch bump until ESM issues are sorted by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4151](https://github.com/reduxjs/redux-toolkit/pull/4151)
- Contributing Markdown Refresh by
[@​itz-Me-Pj](https://github.com/itz-Me-Pj) in
[https://github.com/reduxjs/redux-toolkit/pull/4139](https://github.com/reduxjs/redux-toolkit/pull/4139)
- investigate re-adding size limit action by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4083](https://github.com/reduxjs/redux-toolkit/pull/4083)
- Add size limit imports for more commonly used RTK exports by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4155](https://github.com/reduxjs/redux-toolkit/pull/4155)
- pure some things by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4157](https://github.com/reduxjs/redux-toolkit/pull/4157)
- cut back on suffixes tested for size by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4160](https://github.com/reduxjs/redux-toolkit/pull/4160)
- Incorrect builder method referenced by
[@​kantbtrue](https://github.com/kantbtrue) in
[https://github.com/reduxjs/redux-toolkit/pull/4161](https://github.com/reduxjs/redux-toolkit/pull/4161)
- Rename `cli.js` to `cli.mjs` by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4169](https://github.com/reduxjs/redux-toolkit/pull/4169)
- Migrate Codegen OpenAPI's unit tests to Vitest by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4137](https://github.com/reduxjs/redux-toolkit/pull/4137)
- Fix wrong state for injected slices when not declared via
`withLazyLoadedSlices` by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4172](https://github.com/reduxjs/redux-toolkit/pull/4172)
- \[Docs, createEntityAdapter API]: add missing setOne and setMany
signature by [@​kyselberg](https://github.com/kyselberg) in
[https://github.com/reduxjs/redux-toolkit/pull/4173](https://github.com/reduxjs/redux-toolkit/pull/4173)
- Corrected the "Observing cache behaviour" example point no.4 by
[@​721-atikshaikh](https://github.com/721-atikshaikh) in
[https://github.com/reduxjs/redux-toolkit/pull/4174](https://github.com/reduxjs/redux-toolkit/pull/4174)
- feat: add isPrefetch property in query action by
[@​juliengbt](https://github.com/juliengbt) in
[https://github.com/reduxjs/redux-toolkit/pull/4177](https://github.com/reduxjs/redux-toolkit/pull/4177)
- allow initialising combined slice reducer with no static slices by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4184](https://github.com/reduxjs/redux-toolkit/pull/4184)
- Create more Typed wrappers for RTKQ hook types by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4147](https://github.com/reduxjs/redux-toolkit/pull/4147)
- proposal fix for axios base query types by
[@​smff](https://github.com/smff) in
[https://github.com/reduxjs/redux-toolkit/pull/4186](https://github.com/reduxjs/redux-toolkit/pull/4186)
- Provide 'throw' option for `overrideExisting` by
[@​ffluk3](https://github.com/ffluk3) in
[https://github.com/reduxjs/redux-toolkit/pull/4189](https://github.com/reduxjs/redux-toolkit/pull/4189)
- Use vite-tsconfig-paths to make path aliasing easier by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4175](https://github.com/reduxjs/redux-toolkit/pull/4175)
- Remove trailing commas in `tsconfig.json` files of all CodesandBox
examples by [@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4190](https://github.com/reduxjs/redux-toolkit/pull/4190)
- \[Docs] Added withTypes documentation in createDraftSafeSelector by
[@​riqts](https://github.com/riqts) in
[https://github.com/reduxjs/redux-toolkit/pull/4143](https://github.com/reduxjs/redux-toolkit/pull/4143)
- Add second parameter to getInitialState to prefill entities by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4183](https://github.com/reduxjs/redux-toolkit/pull/4183)
#### New Contributors
- [@​itz-Me-Pj](https://github.com/itz-Me-Pj) made their first
contribution in
[https://github.com/reduxjs/redux-toolkit/pull/4139](https://github.com/reduxjs/redux-toolkit/pull/4139)
- [@​kantbtrue](https://github.com/kantbtrue) made their first
contribution in
[https://github.com/reduxjs/redux-toolkit/pull/4161](https://github.com/reduxjs/redux-toolkit/pull/4161)
- [@​kyselberg](https://github.com/kyselberg) made their first
contribution in
[https://github.com/reduxjs/redux-toolkit/pull/4173](https://github.com/reduxjs/redux-toolkit/pull/4173)
- [@​721-atikshaikh](https://github.com/721-atikshaikh) made
their first contribution in
[https://github.com/reduxjs/redux-toolkit/pull/4174](https://github.com/reduxjs/redux-toolkit/pull/4174)
- [@​smff](https://github.com/smff) made their first
contribution in
[https://github.com/reduxjs/redux-toolkit/pull/4186](https://github.com/reduxjs/redux-toolkit/pull/4186)
- [@​ffluk3](https://github.com/ffluk3) made their first
contribution in
[https://github.com/reduxjs/redux-toolkit/pull/4189](https://github.com/reduxjs/redux-toolkit/pull/4189)
**Full Changelog**:
https://github.com/reduxjs/redux-toolkit/compare/v2.1.0...v2.2.0
###
[`v2.1.0`](https://github.com/reduxjs/redux-toolkit/releases/tag/v2.1.0)
[Compare
Source](https://github.com/reduxjs/redux-toolkit/compare/v2.0.1...v2.1.0)
This *minor release*:
- adds withTypes methods to `listenerMiddleware` and
`createDraftSafeSelector`
- adds a `skipPollingIfUnfocused` option to RTK Query
- adds the ability to customise the `createSelector` instance used by
RTK Query
- reworks slice selector logic to avoid depending on `this` value
- fixes the order and inference of `create.asyncThunk` type parameters
- fixes requirements for meta fields returned from `queryFn`s
- marks promises that will never reject as safe, in preparation for
[https://github.com/typescript-eslint/typescript-eslint/issues/7008](https://github.com/typescript-eslint/typescript-eslint/issues/7008)
#### What's Changed
- Update docs to avoid circular type by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3948](https://github.com/reduxjs/redux-toolkit/pull/3948)
- Copy "Migrating to Modern Redux" and "RTK is Redux" docs from core
site by [@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3956](https://github.com/reduxjs/redux-toolkit/pull/3956)
- Fix store path rtk-query pokemon api tutorial by
[@​suspiciousRaccoon](https://github.com/suspiciousRaccoon) in
[https://github.com/reduxjs/redux-toolkit/pull/3611](https://github.com/reduxjs/redux-toolkit/pull/3611)
- tweak RTKQ without hooks section, and add note regarding memoization
by [@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3963](https://github.com/reduxjs/redux-toolkit/pull/3963)
- Add section regarding overriding deps by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3968](https://github.com/reduxjs/redux-toolkit/pull/3968)
- Add section re: RR custom context typing change by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3995](https://github.com/reduxjs/redux-toolkit/pull/3995)
- Add Expo demo app to CI workflow by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/3985](https://github.com/reduxjs/redux-toolkit/pull/3985)
- docs: fix a typo in queries markdown file by
[@​fatihgnc](https://github.com/fatihgnc) in
[https://github.com/reduxjs/redux-toolkit/pull/4013](https://github.com/reduxjs/redux-toolkit/pull/4013)
- Preserve nullable store state type by avoiding intersection with {} by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4011](https://github.com/reduxjs/redux-toolkit/pull/4011)
- Upgrade version of "graphql-request" by
[@​phryneas](https://github.com/phryneas) in
[https://github.com/reduxjs/redux-toolkit/pull/4026](https://github.com/reduxjs/redux-toolkit/pull/4026)
- \[graphql-request-base-query] update RTK peerDependency by
[@​phryneas](https://github.com/phryneas) in
[https://github.com/reduxjs/redux-toolkit/pull/4027](https://github.com/reduxjs/redux-toolkit/pull/4027)
- fix: improve selectFromResult memoization by
[@​thisjeremiah](https://github.com/thisjeremiah) in
[https://github.com/reduxjs/redux-toolkit/pull/4029](https://github.com/reduxjs/redux-toolkit/pull/4029)
- Rename "createSliceWithThunks" and "createThunkSlice" to
"createAppSlice" by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4035](https://github.com/reduxjs/redux-toolkit/pull/4035)
- Bump Vitest to latest version by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4047](https://github.com/reduxjs/redux-toolkit/pull/4047)
- fix inference and order of async thunk generics by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4061](https://github.com/reduxjs/redux-toolkit/pull/4061)
- Fix markdown links on Next.js page by
[@​DmitryScaletta](https://github.com/DmitryScaletta) in
[https://github.com/reduxjs/redux-toolkit/pull/4069](https://github.com/reduxjs/redux-toolkit/pull/4069)
- Introduce pre-typed listener middleware via
`listenerMiddleware.withTypes<RootState, AppDispatch>()` method by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4049](https://github.com/reduxjs/redux-toolkit/pull/4049)
- Add `.withTypes` to `createDraftSafeSelector` by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4080](https://github.com/reduxjs/redux-toolkit/pull/4080)
- Task/remove all settled by
[@​bever1337](https://github.com/bever1337) in
[https://github.com/reduxjs/redux-toolkit/pull/3917](https://github.com/reduxjs/redux-toolkit/pull/3917)
- Allow customising createSelector instance used by RTKQ by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4048](https://github.com/reduxjs/redux-toolkit/pull/4048)
- cacheLifecycle fix for fixedCacheKey in mutationThunk by
[@​riqts](https://github.com/riqts) in
[https://github.com/reduxjs/redux-toolkit/pull/4082](https://github.com/reduxjs/redux-toolkit/pull/4082)
- avoid relying on `this` in createSlice by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4071](https://github.com/reduxjs/redux-toolkit/pull/4071)
- documentation: fix grammar in redux and redux toolkit comparison by
[@​untilhamza](https://github.com/untilhamza) in
[https://github.com/reduxjs/redux-toolkit/pull/4086](https://github.com/reduxjs/redux-toolkit/pull/4086)
- Update `tsconfig.typetests.json` to include all TS files by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4091](https://github.com/reduxjs/redux-toolkit/pull/4091)
- Remove abort event listner for AbortController by
[@​Fonger](https://github.com/Fonger) in
[https://github.com/reduxjs/redux-toolkit/pull/3951](https://github.com/reduxjs/redux-toolkit/pull/3951)
- Docs: unused value 'isRejected' in code snippet by
[@​alphonsotran](https://github.com/alphonsotran) in
[https://github.com/reduxjs/redux-toolkit/pull/3301](https://github.com/reduxjs/redux-toolkit/pull/3301)
- fix/kitchen-sink-isAuthenticated: fixed isAuthenticated state change
on login fullfilled by
[@​shrijan00003](https://github.com/shrijan00003) in
[https://github.com/reduxjs/redux-toolkit/pull/3588](https://github.com/reduxjs/redux-toolkit/pull/3588)
- Fix `composeWithDevTools` spy by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4093](https://github.com/reduxjs/redux-toolkit/pull/4093)
- require queryFn meta to match base query by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4098](https://github.com/reduxjs/redux-toolkit/pull/4098)
- Added 'SafePromise' branded Promises for createAsyncThunk by
[@​JoshuaKGoldberg](https://github.com/JoshuaKGoldberg) in
[https://github.com/reduxjs/redux-toolkit/pull/4102](https://github.com/reduxjs/redux-toolkit/pull/4102)
- Add React Native demo app to CI workflow by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/3984](https://github.com/reduxjs/redux-toolkit/pull/3984)
- Modernize unit test setup by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4114](https://github.com/reduxjs/redux-toolkit/pull/4114)
- Add missing reducer field to ConfigureStoreOptions docs by
[@​nickgirardo](https://github.com/nickgirardo) in
[https://github.com/reduxjs/redux-toolkit/pull/4116](https://github.com/reduxjs/redux-toolkit/pull/4116)
- Option for queries to pause polling when unfocused by
[@​riqts](https://github.com/riqts) in
[https://github.com/reduxjs/redux-toolkit/pull/4055](https://github.com/reduxjs/redux-toolkit/pull/4055)
#### New Contributors
- [@​suspiciousRaccoon](https://github.com/suspiciousRaccoon)
made their first contribution in
[https://github.com/reduxjs/redux-toolkit/pull/3611](https://github.com/reduxjs/redux-toolkit/pull/3611)
- [@​fatihgnc](https://github.com/fatihgnc) made their first
contribution in
[https://github.com/reduxjs/redux-toolkit/pull/4013](https://github.com/reduxjs/redux-toolkit/pull/4013)
- [@​thisjeremiah](https://github.com/thisjeremiah) made their
first contribution in
[https://github.com/reduxjs/redux-toolkit/pull/4029](https://github.com/reduxjs/redux-toolkit/pull/4029)
- [@​riqts](https://github.com/riqts) made their first
contribution in
[https://github.com/reduxjs/redux-toolkit/pull/4082](https://github.com/reduxjs/redux-toolkit/pull/4082)
- [@​untilhamza](https://github.com/untilhamza) made their first
contribution in
[https://github.com/reduxjs/redux-toolkit/pull/4086](https://github.com/reduxjs/redux-toolkit/pull/4086)
- [@​Fonger](https://github.com/Fonger) made their first
contribution in
[https://github.com/reduxjs/redux-toolkit/pull/3951](https://github.com/reduxjs/redux-toolkit/pull/3951)
- [@​alphonsotran](https://github.com/alphonsotran) made their
first contribution in
[https://github.com/reduxjs/redux-toolkit/pull/3301](https://github.com/reduxjs/redux-toolkit/pull/3301)
- [@​shrijan00003](https://github.com/shrijan00003) made their
first contribution in
[https://github.com/reduxjs/redux-toolkit/pull/3588](https://github.com/reduxjs/redux-toolkit/pull/3588)
- [@​JoshuaKGoldberg](https://github.com/JoshuaKGoldberg) made
their first contribution in
[https://github.com/reduxjs/redux-toolkit/pull/4102](https://github.com/reduxjs/redux-toolkit/pull/4102)
- [@​nickgirardo](https://github.com/nickgirardo) made their
first contribution in
[https://github.com/reduxjs/redux-toolkit/pull/4116](https://github.com/reduxjs/redux-toolkit/pull/4116)
**Full Changelog**:
https://github.com/reduxjs/redux-toolkit/compare/v2.0.1...v2.1.0
###
[`v2.0.1`](https://github.com/reduxjs/redux-toolkit/compare/v2.0.0...v2.0.1)
[Compare
Source](https://github.com/reduxjs/redux-toolkit/compare/v2.0.0...v2.0.1)
###
[`v2.0.0`](https://github.com/reduxjs/redux-toolkit/releases/tag/v2.0.0)
[Compare
Source](https://github.com/reduxjs/redux-toolkit/compare/v1.9.7...v2.0.0)
This **major release** :
- Removes the deprecated object syntax from `createSlice` and
`createReducer`
- Removes other deprecated options
- Updates the `middleware` and `enhancers` options of `configureStore`
to require callbacks
- Updates the packaging for better ESM/CJS compatibility and modernizes
the build output
- Includes all changes to [Redux core
5.0](https://github.com/reduxjs/redux/releases/tag/v5.0.0), [Reselect
5.0](https://github.com/reduxjs/reselect/releases/tag/v5.0.0), and
[Redux Thunk
3.0](https://github.com/reduxjs/redux-thunk/releases/tag/v3.0.0)
- Updates RTKQ default subscription behavior
- Adds a new `combineSlices` method with support for lazy-loading slice
reducers
- Adds a new "dynamic middleware" middleware with support for adding
middleware at runtime
- Adds a new callback syntax to `createSlice.reducers`, with optional
support for defining thunks inside of `createSlice`
- Adds the `autoBatchEnhancer` to `configureStore` by default
- Has many additional TS tweaks and improvements
This release has **breaking changes**. (Note: v2.0.1 was released with a
couple hotfixes for Reselect and Redux Thunk right as this was being
finalized.)
This release is part of a wave of major versions of all the Redux
packages: **Redux Toolkit 2.0, Redux core 5.0, React-Redux 9.0, Reselect
5.0, and Redux Thunk 3.0**.
For full details on all of the breaking changes and other significant
changes to all of those packages, see the **["Migrating to RTK 2.0 and
Redux 5.0" migration
guide](https://redux.js.org/usage/migrations/migrating-rtk-2)** in the
Redux docs.
> \[!NOTE]
> The Redux core, Reselect, and Redux Thunk packages are included as
part of Redux Toolkit, and RTK users do not need to manually upgrade
them - you'll get them as part of the upgrade to RTK 2.0. (If you're not
using Redux Toolkit yet, [**please start migrating your existing legacy
Redux code to use Redux Toolkit
today!**](https://redux.js.org/usage/migrating-to-modern-redux))
```bash
##### RTK
npm install @​reduxjs/toolkit
yarn add @​reduxjs/toolkit
```
##### Changelog
##### Object syntax for `createSlice.extraReducers` and `createReducer`
removed
RTK's `createReducer` API was originally designed to accept a lookup
table of action type strings to case reducers, like `{ "ADD_TODO":
(state, action) => {} }`. We later added the "builder callback" form to
allow more flexibility in adding "matchers" and a default handler, and
did the same for `createSlice.extraReducers`.
We have removed the "object" form for both `createReducer` and
`createSlice.extraReducers` in RTK 2.0, as the builder callback form is
effectively the same number of lines of code, and works much better with
TypeScript.
As an example, this:
```ts
const todoAdded = createAction('todos/todoAdded')
createReducer(initialState, {
[todoAdded]: (state, action) => {},
})
createSlice({
name,
initialState,
reducers: {
/* case reducers here */
},
extraReducers: {
[todoAdded]: (state, action) => {},
},
})
```
should be migrated to:
```ts
createReducer(initialState, (builder) => {
builder.addCase(todoAdded, (state, action) => {})
})
createSlice({
name,
initialState,
reducers: {
/* case reducers here */
},
extraReducers: (builder) => {
builder.addCase(todoAdded, (state, action) => {})
},
})
```
##### Codemods
To simplify upgrading codebases, we've published a set of codemods that
will automatically transform the deprecated "object" syntax into the
equivalent "builder" syntax.
The codemods package is available on NPM as
[`@reduxjs/rtk-codemods`](https://www.npmjs.com/package/@​reduxjs/rtk-codemods).
More details are available [here](../api/codemods).
To run the codemods against your codebase, run `npx
@​reduxjs/rtk-codemods <TRANSFORM NAME> path/of/files/
or/some**/*glob.js.`
Examples:
```sh
npx @​reduxjs/rtk-codemods createReducerBuilder ./src
npx @​reduxjs/rtk-codemods createSliceBuilder ./packages/my-app/**/*.ts
```
We also recommend re-running Prettier on the codebase before committing
the changes.
These codemods should work, but we would greatly appreciate feedback
from more real-world codebases!
##### `configureStore` Options Changes
##### `configureStore.middleware` must be a callback
Since the beginning, `configureStore` has accepted a direct array value
as the `middleware` option. However, providing an array directly
prevents `configureStore` from calling `getDefaultMiddleware()`. So,
`middleware: [myMiddleware]` means there is no thunk middleware added
(or any of the dev-mode checks).
This is a footgun, and we've had numerous users accidentally do this and
cause their apps to fail because the default middleware never got
configured.
As a result, we've now made the `middleware` only accept the callback
form. *If* for some reason you still want to replace *all* of the
built-in middleware, do so by returning an array from the callback:
```ts
const store = configureStore({
reducer,
middleware: (getDefaultMiddleware) => {
// WARNING: this means that _none_ of the default middleware are added!
return [myMiddleware]
// or for TS users, use:
// return new Tuple(myMiddleware)
},
})
```
But note that **we consistently recommend not replacing the default
middleware entirely**, and that you should use `return
getDefaultMiddleware().concat(myMiddleware)`.
##### `configureStore.enhancers` must be a callback
Similarly to `configureStore.middleware`, the `enhancers` field must
also be a callback, for the same reasons.
The callback will receive a `getDefaultEnhancers` function that can be
used to customise the batching enhancer [that's now included by
default](#configurestore-adds-autobatchenhancer-by-default).
For example:
```ts
const store = configureStore({
reducer,
enhancers: (getDefaultEnhancers) => {
return getDefaultEnhancers({
autoBatch: { type: 'tick' },
}).concat(myEnhancer)
},
})
```
It's important to note that the result of `getDefaultEnhancers` will
**also** contain the middleware enhancer created with any
configured/default middleware. To help prevent mistakes,
`configureStore` will log an error to console if middleware was provided
and the middleware enhancer wasn't included in the callback result.
```ts
const store = configureStore({
reducer,
enhancers: (getDefaultEnhancers) => {
return [myEnhancer] // we've lost the middleware here
// instead:
return getDefaultEnhancers().concat(myEnhancer)
},
})
```
Also, note that **if you supply the `enhancers` field, it *must* come
*after* the `middleware` field in order for TS inference to work
properly**.
##### Standalone `getDefaultMiddleware` and `getType` removed
The standalone version of `getDefaultMiddleware` has been deprecated
since v1.6.1, and has now been removed. Use the function passed to the
`middleware` callback instead, which has the correct types.
We have also removed the `getType` export, which was used to extract a
type string from action creators made with `createAction`. Instead, use
the static property `actionCreator.type`.
##### RTK Query behaviour changes
We've had a number of reports where RTK Query had issues around usage of
`dispatch(endpoint.initiate(arg, {subscription: false}))`. There were
also reports that multiple triggered lazy queries were resolving the
promises at the wrong time. Both of these had the same underlying issue,
which was that RTKQ wasn't tracking cache entries in these cases
(intentionally). We've reworked the logic to always track cache entries
(and remove them as needed), which should resolve those behavior issues.
We also have had issues raised about trying to run multiple mutations in
a row and how tag invalidation behaves. RTKQ now has internal logic to
delay tag invalidation briefly, to allow multiple invalidations to get
handled together. This is controlled by a new `invalidationBehavior:
'immediate' | 'delayed'` flag on `createApi`. The new default behavior
is `'delayed'`. Set it to `'immediate'` to revert to the behavior in RTK
1.9.
In RTK 1.9, we reworked RTK Query's internals to keep most of the
subscription status inside the RTKQ middleware. The values are still
synced to the Redux store state, but this is primarily for display by
the Redux DevTools "RTK Query" panel. Related to the cache entry changes
above, we've optimized how often those values get synced to the Redux
state for perf.
##### ESM/CJS Package Compatibility
The biggest theme of the Redux v5 and RTK 2.0 releases is trying to get
"true" ESM package publishing compatibility in place, while still
supporting CJS in the published package.
**The primary build artifact is now an ESM file,
`dist/redux-toolkit.modern.mjs`**. Most build tools should pick this up.
There's also a CJS artifact, and a second copy of the ESM file named
`redux-toolkit.legacy-esm.js` to support Webpack 4 (which does not
recognize the `exports` field in `package.json`). Additionally, all of
the build artifacts now live under `./dist/` in the published package.
##### Modernized Build Output
We now publish modern JS syntax targeting ES2020, including optional
chaining, object spread, and other modern syntax. If you need to
##### Build Tooling
We're now building the package using https://github.com/egoist/tsup. We
also now include sourcemaps for the ESM and CJS artifacts.
##### Dropping UMD Builds
Redux has always shipped with UMD build artifacts. These are primarily
meant for direct import as script tags, such as in a CodePen or a
no-bundler build environment.
We've dropped those build artifacts from the published package, on the
grounds that the use cases seem pretty rare today.
There's now a `redux-toolkit.browser.mjs` file in the package that can
be loaded from a CDN like Unpkg.
If you have strong use cases for us continuing to include UMD build
artifacts, please let us know!
##### Dependency Updates
##### Redux Libraries
RTK now depends on **[Redux core
5.0](https://github.com/reduxjs/redux/releases/tag/v5.0.0), [Reselect
5.0](https://github.com/reduxjs/reselect/releases/tag/v5.0.0), and
[Redux Thunk
3.0](https://github.com/reduxjs/redux-thunk/releases/tag/v3.0.0)**.
See the linked release notes for those libraries, as **each of them has
additional breaking changes**. The ["Migrating to RTK 2.0 and Redux 5.0"
docs page](https://redux.js.org/usage/migrations/migrating-rtk-2) also
covers the combined changes in one page
##### Immer 10
RTK now also depends on [Immer
10.0](https://github.com/immerjs/immer/releases/tag/v10.0.0), which
has several major improvements and updates:
- Much faster update perf
- Much smaller bundle size
- Better ESM/CJS package formatting
- No default export
- No ES5 fallback
We've also removed the prior call to automatically enable the Immer ES5
fallback mode any time RTK was loaded.
##### Other Changes
##### Bundle Size Optimizations
Redux 4.1.0 optimized its bundle size by [extracting error message
strings out of production
builds](https://github.com/reduxjs/redux/releases/tag/v4.1.0), based
on React's approach. We've applied the same technique to RTK. This saves
about 1000 bytes from prod bundles (actual benefits will depend on which
imports are being used).
We also noted that [ESBuild does not deduplicate imports when it bundles
source files](https://github.com/evanw/esbuild/issues/475), and this
was causing RTK Query's bundle to contain a dozen references to `import
{ } from "@​reduxjs/toolkit"`, including some of the same methods.
Manually deduplicating those saves about 600 bytes off the production
RTKQ artifact.
##### `reactHooksModule` custom hook configuration
Previously, custom versions of React Redux's hooks (`useSelector`,
`useDispatch`, and `useStore`) could be passed separately to
`reactHooksModule`, usually to enable using a different context to the
default `ReactReduxContext`.
In practicality, the react hooks module needs all three of these hooks
to be provided, and it became an easy mistake to only pass `useSelector`
and `useDispatch`, without `useStore`.
The module has now moved all three of these under the same configuration
key, and will check that all three are provided if the key is present.
```ts
// previously
const customCreateApi = buildCreateApi(
coreModule(),
reactHooksModule({
useDispatch: createDispatchHook(MyContext),
useSelector: createSelectorHook(MyContext),
useStore: createStoreHook(MyContext),
})
)
// now
const customCreateApi = buildCreateApi(
coreModule(),
reactHooksModule({
hooks: {
useDispatch: createDispatchHook(MyContext),
useSelector: createSelectorHook(MyContext),
useStore: createStoreHook(MyContext),
},
})
)
```
##### Deprecated Options Removed
Several other options were previously marked as deprecated, and have
been removed. We've also removed polyfills like the `AbortController`
polyfill.
##### TypeScript Changes
##### `configureStore` field order for `middleware` matters
If you are passing *both* the `middleware` and `enhancers` fields to
`configureStore`, the `middleware` field *must* come first in order for
internal TS inference to work properly.
##### Non-default middleware/enhancers must use `Tuple`
We've seen many cases where users passing the `middleware` parameter to
configureStore have tried spreading the array returned by
`getDefaultMiddleware()`, or passed an alternate plain array. This
unfortunately loses the exact TS types from the individual middleware,
and often causes TS problems down the road (such as `dispatch` being
typed as `Dispatch<AnyAction>` and not knowing about thunks).
`getDefaultMiddleware()` already used an internal `MiddlewareArray`
class, an `Array` subclass that had strongly typed `.concat/prepend()`
methods to correctly capture and retain the middleware types.
We've renamed that type to `Tuple`, and `configureStore`'s TS types now
require that you *must* use `Tuple` if you want to pass your own array
of middleware:
```ts
import { configureStore, Tuple } from '@​reduxjs/toolkit'
configureStore({
reducer: rootReducer,
middleware: (getDefaultMiddleware) => new Tuple(additionalMiddleware, logger),
})
```
(Note that this has no effect if you're using RTK with plain JS, and you
could still pass a plain array here.)
This same restriction applies to the `enhancers` field.
##### Entity adapter type updates
`createEntityAdapter` now has an `Id` generic argument, which will be
used to strongly type the item IDs anywhere those are exposed.
Previously, the ID field type was always `string | number`. TS will now
try to infer the exact type from either the `.id` field of your entity
type, or the `selectId` return type. You could also fall back to passing
that generic type directly. **If you use the `EntityState<Data, Id>`
type directly, you *must* supply both generic arguments!**
The `.entities` lookup table is now defined to use a standard TS
`Record<Id, MyEntityType>`, which assumes that each item lookup exists
by default. Previously, it used a `Dictionary<MyEntityType>` type, which
assumed the result was `MyEntityType | undefined`. The `Dictionary` type
has been removed.
If you prefer to assume that the lookups *might* be undefined, use
TypeScript's `noUncheckedIndexedAccess` configuration option to control
that.
##### New Features
These features are new in Redux Toolkit 2.0, and help cover additional
use cases that we've seen users ask for in the ecosystem.
##### `combineSlices` API with slice reducer injection for
code-splitting
The Redux core has always included `combineReducers`, which takes an
object full of "slice reducer" functions and generates a reducer that
calls those slice reducers. RTK's `createSlice` generates slice reducers
+ associated action creators, and we've taught the pattern of exporting
individual action creators as named exports and the slice reducer as a
default export. Meanwhile, we've never had official support for
lazy-loading reducers, although we've had [sample code for some "reducer
injection" patterns in our
docs](https://redux.js.org/usage/code-splitting).
This release includes a new [`combineSlices`](../api/combineSlices) API
that is designed to enable lazy-loading of reducers at runtime. It
accepts individual slices or an object full of slices as arguments, and
automatically calls `combineReducers` using the `sliceObject.name` field
as the key for each state field. The generated reducer function has an
additional `.inject()` method attached that can be used to dynamically
inject additional slices at runtime. It also includes a
`.withLazyLoadedSlices()` method that can be used to generate TS types
for reducers that will be added later. See
[#​2776](https://github.com/reduxjs/redux-toolkit/issues/2776)
for the original discussion around this idea.
For now, we are not building this into `configureStore`, so you'll need
to call `const rootReducer = combineSlices(.....)` yourself and pass
that to `configureStore({reducer: rootReducer})`.
**Basic usage: a mixture of slices and standalone reducers passed to
`combineSlices`**
```ts
const stringSlice = createSlice({
name: 'string',
initialState: '',
reducers: {},
})
const numberSlice = createSlice({
name: 'number',
initialState: 0,
reducers: {},
})
const booleanReducer = createReducer(false, () => {})
const api = createApi(/* */)
const combinedReducer = combineSlices(
stringSlice,
{
num: numberSlice.reducer,
boolean: booleanReducer,
},
api
)
expect(combinedReducer(undefined, dummyAction())).toEqual({
string: stringSlice.getInitialState(),
num: numberSlice.getInitialState(),
boolean: booleanReducer.getInitialState(),
api: api.reducer.getInitialState(),
})
```
**Basic slice reducer injection**
```ts
// Create a reducer with a TS type that knows `numberSlice` will be injected
const combinedReducer =
combineSlices(stringSlice).withLazyLoadedSlices<
WithSlice<typeof numberSlice>
>()
// `state.number` doesn't exist initially
expect(combinedReducer(undefined, dummyAction()).number).toBe(undefined)
// Create a version of the reducer with `numberSlice` injected (mainly useful for types)
const injectedReducer = combinedReducer.inject(numberSlice)
// `state.number` now exists, and injectedReducer's type no longer marks it as optional
expect(injectedReducer(undefined, dummyAction()).number).toBe(
numberSlice.getInitialState()
)
// original reducer has also been changed (type is still optional)
expect(combinedReducer(undefined, dummyAction()).number).toBe(
numberSlice.getInitialState()
)
```
##### `selectors` field in `createSlice`
The existing `createSlice` API now has support for defining
[`selectors`](../api/createSlice#selectors) directly as part of the
slice. By default, these will be generated with the assumption that the
slice is mounted in the root state using `slice.name` as the field, such
as `name: "todos"` -> `rootState.todos`. Additionally, there's now a
`slice.selectSlice` method that does that default root state lookup.
You can call `sliceObject.getSelectors(selectSliceState)` to generate
the selectors with an alternate location, similar to how
`entityAdapter.getSelectors()` works.
```ts
const slice = createSlice({
name: 'counter',
initialState: 42,
reducers: {},
selectors: {
selectSlice: (state) => state,
selectMultiple: (state, multiplier: number) => state * multiplier,
},
})
// Basic usage
const testState = {
[slice.name]: slice.getInitialState(),
}
const { selectSlice, selectMultiple } = slice.selectors
expect(selectSlice(testState)).toBe(slice.getInitialState())
expect(selectMultiple(testState, 2)).toBe(slice.getInitialState() * 2)
// Usage with the slice reducer mounted under a different key
const customState = {
number: slice.getInitialState(),
}
const { selectSlice, selectMultiple } = slice.getSelectors(
(state: typeof customState) => state.number
)
expect(selectSlice(customState)).toBe(slice.getInitialState())
expect(selectMultiple(customState, 2)).toBe(slice.getInitialState() * 2)
```
##### `createSlice.reducers` callback syntax and thunk support
One of the oldest feature requests we've had is the ability to declare
thunks directly inside of `createSlice`. Until now, you've always had to
declare them separately, give the thunk a string action prefix, and
handle the actions via `createSlice.extraReducers`:
```ts
// Declare the thunk separately
const fetchUserById = createAsyncThunk(
'users/fetchByIdStatus',
async (userId: number, thunkAPI) => {
const response = await userAPI.fetchById(userId)
return response.data
}
)
const usersSlice = createSlice({
name: 'users',
initialState,
reducers: {
// standard reducer logic, with auto-generated action types per reducer
},
extraReducers: (builder) => {
// Add reducers for additional action types here, and handle loading state as needed
builder.addCase(fetchUserById.fulfilled, (state, action) => {
state.entities.push(action.payload)
})
},
})
```
Many users have told us that this separation feels awkward.
We've *wanted* to include a way to define thunks directly inside of
`createSlice`, and have played around with various prototypes. There
were always two major blocking issues, and a secondary concern:
1. It wasn't clear what the syntax for declaring a thunk inside should
look like.
2. Thunks have access to `getState` and `dispatch`, but the `RootState`
and `AppDispatch` types are normally inferred from the store, which in
turn infers it from the slice state types. Declaring thunks inside
`createSlice` would cause circular type inference errors, as the store
needs the slice types but the slice needs the store types. We weren't
willing to ship an API that would work okay for our JS users but not for
our TS users, especially since we *want* people to use TS with RTK.
3. You can't do synchronous conditional imports in ES modules, and
there's no good way to make the `createAsyncThunk` import optional.
Either `createSlice` always depends on it (and adds that to the bundle
size), or it can't use `createAsyncThunk` at all.
We've settled on these compromises:
- **In order to create async thunks with `createSlice`, you specifically
need to [set up a custom version of `createSlice` that has access to
`createAsyncThunk`](../api/createSlice#createasyncthunk)**.
- You can declare thunks inside of `createSlice.reducers`, by using a
"creator callback" syntax for the `reducers` field that is similar to
the `build` callback syntax in RTK Query's `createApi` (using typed
functions to create fields in an object). Doing this does look a bit
different than the existing "object" syntax for the `reducers` field,
but is still fairly similar.
- You can customize *some* of the types for thunks inside of
`createSlice`, but you *cannot* customize the `state` or `dispatch`
types. If those are needed, you can manually do an `as` cast, like
`getState() as RootState`.
In practice, we hope these are reasonable tradeoffs. Creating thunks
inside of `createSlice` has been widely asked for, so we think it's an
API that will see usage. If the TS customization options are a
limitation, you can still declare thunks outside of `createSlice` as
always, and most async thunks don't need `dispatch` or `getState` - they
just fetch data and return. And finally, setting up a custom
`createSlice` allows you to opt into `createAsyncThunk` being included
in your bundle size (though it may already be included if used directly
or as part of RTK Query - in either of these cases there's no
*additional* bundle size).
Here's what the new callback syntax looks like:
```ts
const createSliceWithThunks = buildCreateSlice({
creators: { asyncThunk: asyncThunkCreator },
})
const todosSlice = createSliceWithThunks({
name: 'todos',
initialState: {
loading: false,
todos: [],
error: null,
} as TodoState,
reducers: (create) => ({
// A normal "case reducer", same as always
deleteTodo: create.reducer((state, action: PayloadAction<number>) => {
state.todos.splice(action.payload, 1)
}),
// A case reducer with a "prepare callback" to customize the action
addTodo: create.preparedReducer(
(text: string) => {
const id = nanoid()
return { payload: { id, text } }
},
// action type is inferred from prepare callback
(state, action) => {
state.todos.push(action.payload)
}
),
// An async thunk
fetchTodo: create.asyncThunk(
// Async payload function as the first argument
async (id: string, thunkApi) => {
const res = await fetch(`myApi/todos?id=${id}`)
return (await res.json()) as Item
},
// An object containing `{pending?, rejected?, fulfilled?, settled?, options?}` second
{
pending: (state) => {
state.loading = true
},
rejected: (state, action) => {
state.error = action.payload ?? action.error
},
fulfilled: (state, action) => {
state.todos.push(action.payload)
},
// settled is called for both rejected and fulfilled actions
settled: (state, action) => {
state.loading = false
},
}
),
}),
})
// `addTodo` and `deleteTodo` are normal action creators.
// `fetchTodo` is the async thunk
export const { addTodo, deleteTodo, fetchTodo } = todosSlice.actions
```
##### Codemod
**Using the new callback syntax is entirely optional (the object syntax
is still standard)**, but an existing slice would need to be converted
before it can take advantage of the new capabilities this syntax
provides. To make this easier, a [codemod](../api/codemods) is provided.
```sh
npx @​reduxjs/rtk-codemods createSliceReducerBuilder ./src/features/todos/slice.ts
```
##### "Dynamic middleware" middleware
A Redux store's middleware pipeline is fixed at store creation time and
can't be changed later. We *have* seen ecosystem libraries that tried to
allow dynamically adding and removing middleware, potentially useful for
things like code splitting.
This is a relatively niche use case, but we've built [our own version of
a "dynamic middleware" middleware](../api/createDynamicMiddleware). Add
it to the Redux store at setup time, and it lets you add middleware
later at runtime. It also comes with a [React hook integration that will
automatically add a middleware to the store and return the updated
dispatch method.](../api/createDynamicMiddleware#react-integration).
```ts
import { createDynamicMiddleware, configureStore } from '@​reduxjs/toolkit'
const dynamicMiddleware = createDynamicMiddleware()
const store = configureStore({
reducer: {
todos: todosReducer,
},
middleware: (getDefaultMiddleware) =>
getDefaultMiddleware().prepend(dynamicMiddleware.middleware),
})
// later
dynamicMiddleware.addMiddleware(someOtherMiddleware)
```
##### `configureStore` adds `autoBatchEnhancer` by default
[In v1.9.0, we added a new
`autoBatchEnhancer`](https://github.com/reduxjs/redux-toolkit/releases/tag/v1.9.0)
that delays notifying subscribers briefly when multiple "low-priority"
actions are dispatched in a row. This improves perf, as UI updates are
typically the most expensive part of the update process. RTK Query marks
most of its own internal actions as "low-pri" by default, but you have
to have the `autoBatchEnhancer` added to the store to benefit from that.
We've updated `configureStore` to add the `autoBatchEnhancer` to the
store setup by default, so that users can benefit from the improved perf
without needing to manually tweak the store config themselves.
##### `entityAdapter.getSelectors` accepts a `createSelector` function
[`entityAdapter.getSelectors()`](../api/createEntityAdapter#selector-functions)
now accepts an options object as its second argument. This allows you to
pass in your own preferred `createSelector` method, which will be used
to memoize the generated selectors. This could be useful if you want to
use one of Reselect's new alternate memoizers, or some other memoization
library with an equivalent signature.
##### Next.js Setup Guide
We now have a docs page that covers [how to set up Redux properly with
Next.js](https://redux.js.org/usage/nextjs). We've seen a lot of
questions around using Redux, Next, and the App Router together, and
this guide should help provide advice.
(At this time, the Next.js `with-redux` example is still showing
outdated patterns - we're going to file a PR shortly to update that to
match our docs guide.)
##### What's Changed
- Remove legacy object syntax for reducers by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3051](https://github.com/reduxjs/redux-toolkit/pull/3051)
- Upgrade build tooling by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3088](https://github.com/reduxjs/redux-toolkit/pull/3088)
- Migrate the RTK package to be full ESM by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3095](https://github.com/reduxjs/redux-toolkit/pull/3095)
- Migrate RTK test suite from Jest to Vitest by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3102](https://github.com/reduxjs/redux-toolkit/pull/3102)
- Fix type errors after upgrading to Redux 5 alpha by
[@​Methuselah96](https://github.com/Methuselah96) in
[https://github.com/reduxjs/redux-toolkit/pull/3177](https://github.com/reduxjs/redux-toolkit/pull/3177)
- Bump Redux dep to 5.0.0-alpha.2 by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3170](https://github.com/reduxjs/redux-toolkit/pull/3170)
- Test published artifacts in CI by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3213](https://github.com/reduxjs/redux-toolkit/pull/3213)
- Merge RTK CI examples into `v2.0-integration` by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3253](https://github.com/reduxjs/redux-toolkit/pull/3253)
- Add `arethetypeswrong` automated CLI check by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3294](https://github.com/reduxjs/redux-toolkit/pull/3294)
- update tip regarding overrideExisting to match actual behaviour by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3305](https://github.com/reduxjs/redux-toolkit/pull/3305)
- Add `attw` CLI option to treat problems as non-errors by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3316](https://github.com/reduxjs/redux-toolkit/pull/3316)
- Rework build setup and hopefully fix ESM compat issues by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3318](https://github.com/reduxjs/redux-toolkit/pull/3318)
- Bump Immer to 10.0-beta by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3320](https://github.com/reduxjs/redux-toolkit/pull/3320)
- Switch build setup from a custom ESBuild+TS script to `tsup` by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3362](https://github.com/reduxjs/redux-toolkit/pull/3362)
- Use original instead of immer draft for perf by
[@​GeorchW](https://github.com/GeorchW) in
[https://github.com/reduxjs/redux-toolkit/pull/3270](https://github.com/reduxjs/redux-toolkit/pull/3270)
- enable enhanceEndpoints.transformResponse to override ResultType by
[@​dmitrigrabov](https://github.com/dmitrigrabov) in
[https://github.com/reduxjs/redux-toolkit/pull/2953](https://github.com/reduxjs/redux-toolkit/pull/2953)
- Fix global `responseHandler` being used in `fetchBaseQuery` by
[@​praxxis](https://github.com/praxxis) in
[https://github.com/reduxjs/redux-toolkit/pull/3137](https://github.com/reduxjs/redux-toolkit/pull/3137)
- reset internalState.currentSubscriptions on `resetApiState` by
[@​phryneas](https://github.com/phryneas) in
[https://github.com/reduxjs/redux-toolkit/pull/3333](https://github.com/reduxjs/redux-toolkit/pull/3333)
- Bump deps and mark `subscriptionUpdated` as autobatched by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3364](https://github.com/reduxjs/redux-toolkit/pull/3364)
- Redux 5alpha5 by [@​EskiMojo14](https://github.com/EskiMojo14)
in
[https://github.com/reduxjs/redux-toolkit/pull/3367](https://github.com/reduxjs/redux-toolkit/pull/3367)
- add isAction helper function, and ensure listener middleware only runs
for actions by [@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3372](https://github.com/reduxjs/redux-toolkit/pull/3372)
- Allow inference of enhancer state extensions, and fix inference when
using callback form by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3207](https://github.com/reduxjs/redux-toolkit/pull/3207)
- combineSlices implementation by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3297](https://github.com/reduxjs/redux-toolkit/pull/3297)
- Bump Immer to 10.0 final by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3376](https://github.com/reduxjs/redux-toolkit/pull/3376)
- Allow partial preloaded state for combined slice reducer and update
devDeps by [@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3381](https://github.com/reduxjs/redux-toolkit/pull/3381)
- ensure it's only possible to pass all or none of the hooks to
reactHooksModule by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3400](https://github.com/reduxjs/redux-toolkit/pull/3400)
- Remove remaining deprecated exports by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3398](https://github.com/reduxjs/redux-toolkit/pull/3398)
- create action creator middleware by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3414](https://github.com/reduxjs/redux-toolkit/pull/3414)
- Restore query status types by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3420](https://github.com/reduxjs/redux-toolkit/pull/3420)
- Implement auto fork joining by
[@​ericanderson](https://github.com/ericanderson) in
[https://github.com/reduxjs/redux-toolkit/pull/3407](https://github.com/reduxjs/redux-toolkit/pull/3407)
- types: make it easier to wrap createAsyncThunk by
[@​shrouxm](https://github.com/shrouxm) in
[https://github.com/reduxjs/redux-toolkit/pull/3393](https://github.com/reduxjs/redux-toolkit/pull/3393)
- Fixed Stackoverflow bug if children prop is a ref to root/parent
object by [@​cheprasov](https://github.com/cheprasov) in
[https://github.com/reduxjs/redux-toolkit/pull/3428](https://github.com/reduxjs/redux-toolkit/pull/3428)
- Add getDefaultEnhancers callback, and add autoBatchEnhancer to
defaults. by [@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3347](https://github.com/reduxjs/redux-toolkit/pull/3347)
- Update to Redux alpha 6 by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3442](https://github.com/reduxjs/redux-toolkit/pull/3442)
- Remove toString override from action creators, in favour of explicit
.type field. by [@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3425](https://github.com/reduxjs/redux-toolkit/pull/3425)
- Add "creator callback" syntax to slice reducer field, to allow for
async thunk creation by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3388](https://github.com/reduxjs/redux-toolkit/pull/3388)
- API for adding middleware dynamically by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3292](https://github.com/reduxjs/redux-toolkit/pull/3292)
- Add Id type parameter in createEntityAdapter by
[@​Matt-Ord](https://github.com/Matt-Ord) in
[https://github.com/reduxjs/redux-toolkit/pull/3187](https://github.com/reduxjs/redux-toolkit/pull/3187)
- Require usage of Tuple in TS by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3460](https://github.com/reduxjs/redux-toolkit/pull/3460)
- Require that enhancers is a callback by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3461](https://github.com/reduxjs/redux-toolkit/pull/3461)
- fix invalid createEntityAdapter call by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3490](https://github.com/reduxjs/redux-toolkit/pull/
</details>
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This PR contains the following updates:
| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [@reduxjs/toolkit](https://redux-toolkit.js.org)
([source](https://github.com/reduxjs/redux-toolkit)) | [`^1.9.7` ->
`^2.2.1`](https://renovatebot.com/diffs/npm/@reduxjs%2ftoolkit/1.9.7/2.2.1)
|
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|
[](https://docs.renovatebot.com/merge-confidence/)
|
[](https://docs.renovatebot.com/merge-confidence/)
|
[](https://docs.renovatebot.com/merge-confidence/)
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---
### Release Notes
<details>
<summary>reduxjs/redux-toolkit (@​reduxjs/toolkit)</summary>
###
[`v2.2.1`](https://github.com/reduxjs/redux-toolkit/compare/v2.2.0...v2.2.1)
[Compare
Source](https://github.com/reduxjs/redux-toolkit/compare/v2.2.0...v2.2.1)
###
[`v2.2.0`](https://github.com/reduxjs/redux-toolkit/releases/tag/v2.2.0)
[Compare
Source](https://github.com/reduxjs/redux-toolkit/compare/v2.1.0...v2.2.0)
This *minor release*:
- Adds a second parameter to
`entityAdapter.getInitialState(additionalProps, entities)` to allow
prefilling state
- Equivalent to
`entityAdapter.setAll(entityAdapter.getInitialState(additionalProps),
entities)`
- First parameter can be `undefined` if no additional properties are
desired
- Allows initialising `combineSlices` with no static reducers
- Previously `const combinedReducer =
combineSlices().withLazyLoadedSlices<LazyLoadedSlices>()` would have
thrown an error
- Now returns a "no-op" reducer that just returns an empty object until
first reducer injected
- Allows a new `'throw'` value for `overrideExisting` in
`injectEndpoints`, which throws an error if a definition is injected
with a name which is already used
- Exports more type helpers for RTKQ hook and trigger types
- Exports types related to overriding result types in `enhanceEndpoints`
- Fixes state inference for injected slices when undeclared (i.e. not in
`LazyLoadedSlices`)
- Adds a `action.meta.arg.isPrefetch` value to query thunk actions when
prefetched
#### What's Changed
- Revamp type tests setup by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4095](https://github.com/reduxjs/redux-toolkit/pull/4095)
- Bump Prettier and Prettier related packages by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4126](https://github.com/reduxjs/redux-toolkit/pull/4126)
- Fix codemods to work with TypeScript 4.7+ by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4081](https://github.com/reduxjs/redux-toolkit/pull/4081)
- Export types related to overriding the result types by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4134](https://github.com/reduxjs/redux-toolkit/pull/4134)
- Migrate type tests to Vitest by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4127](https://github.com/reduxjs/redux-toolkit/pull/4127)
- Fix RetryOptions type test by flipping order by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4136](https://github.com/reduxjs/redux-toolkit/pull/4136)
- Format all files by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4135](https://github.com/reduxjs/redux-toolkit/pull/4135)
- \[Docs/Website] skipPollingIfUnfocused added to polling overview and
query options by [@​riqts](https://github.com/riqts) in
[https://github.com/reduxjs/redux-toolkit/pull/4131](https://github.com/reduxjs/redux-toolkit/pull/4131)
- \[Docs] Changed create.asyncThunk setup admonition to caution by
[@​riqts](https://github.com/riqts) in
[https://github.com/reduxjs/redux-toolkit/pull/4150](https://github.com/reduxjs/redux-toolkit/pull/4150)
- Temporarily revert node-fetch bump until ESM issues are sorted by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4151](https://github.com/reduxjs/redux-toolkit/pull/4151)
- Contributing Markdown Refresh by
[@​itz-Me-Pj](https://github.com/itz-Me-Pj) in
[https://github.com/reduxjs/redux-toolkit/pull/4139](https://github.com/reduxjs/redux-toolkit/pull/4139)
- investigate re-adding size limit action by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4083](https://github.com/reduxjs/redux-toolkit/pull/4083)
- Add size limit imports for more commonly used RTK exports by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4155](https://github.com/reduxjs/redux-toolkit/pull/4155)
- pure some things by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4157](https://github.com/reduxjs/redux-toolkit/pull/4157)
- cut back on suffixes tested for size by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4160](https://github.com/reduxjs/redux-toolkit/pull/4160)
- Incorrect builder method referenced by
[@​kantbtrue](https://github.com/kantbtrue) in
[https://github.com/reduxjs/redux-toolkit/pull/4161](https://github.com/reduxjs/redux-toolkit/pull/4161)
- Rename `cli.js` to `cli.mjs` by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4169](https://github.com/reduxjs/redux-toolkit/pull/4169)
- Migrate Codegen OpenAPI's unit tests to Vitest by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4137](https://github.com/reduxjs/redux-toolkit/pull/4137)
- Fix wrong state for injected slices when not declared via
`withLazyLoadedSlices` by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4172](https://github.com/reduxjs/redux-toolkit/pull/4172)
- \[Docs, createEntityAdapter API]: add missing setOne and setMany
signature by [@​kyselberg](https://github.com/kyselberg) in
[https://github.com/reduxjs/redux-toolkit/pull/4173](https://github.com/reduxjs/redux-toolkit/pull/4173)
- Corrected the "Observing cache behaviour" example point no.4 by
[@​721-atikshaikh](https://github.com/721-atikshaikh) in
[https://github.com/reduxjs/redux-toolkit/pull/4174](https://github.com/reduxjs/redux-toolkit/pull/4174)
- feat: add isPrefetch property in query action by
[@​juliengbt](https://github.com/juliengbt) in
[https://github.com/reduxjs/redux-toolkit/pull/4177](https://github.com/reduxjs/redux-toolkit/pull/4177)
- allow initialising combined slice reducer with no static slices by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4184](https://github.com/reduxjs/redux-toolkit/pull/4184)
- Create more Typed wrappers for RTKQ hook types by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4147](https://github.com/reduxjs/redux-toolkit/pull/4147)
- proposal fix for axios base query types by
[@​smff](https://github.com/smff) in
[https://github.com/reduxjs/redux-toolkit/pull/4186](https://github.com/reduxjs/redux-toolkit/pull/4186)
- Provide 'throw' option for `overrideExisting` by
[@​ffluk3](https://github.com/ffluk3) in
[https://github.com/reduxjs/redux-toolkit/pull/4189](https://github.com/reduxjs/redux-toolkit/pull/4189)
- Use vite-tsconfig-paths to make path aliasing easier by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4175](https://github.com/reduxjs/redux-toolkit/pull/4175)
- Remove trailing commas in `tsconfig.json` files of all CodesandBox
examples by [@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4190](https://github.com/reduxjs/redux-toolkit/pull/4190)
- \[Docs] Added withTypes documentation in createDraftSafeSelector by
[@​riqts](https://github.com/riqts) in
[https://github.com/reduxjs/redux-toolkit/pull/4143](https://github.com/reduxjs/redux-toolkit/pull/4143)
- Add second parameter to getInitialState to prefill entities by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4183](https://github.com/reduxjs/redux-toolkit/pull/4183)
#### New Contributors
- [@​itz-Me-Pj](https://github.com/itz-Me-Pj) made their first
contribution in
[https://github.com/reduxjs/redux-toolkit/pull/4139](https://github.com/reduxjs/redux-toolkit/pull/4139)
- [@​kantbtrue](https://github.com/kantbtrue) made their first
contribution in
[https://github.com/reduxjs/redux-toolkit/pull/4161](https://github.com/reduxjs/redux-toolkit/pull/4161)
- [@​kyselberg](https://github.com/kyselberg) made their first
contribution in
[https://github.com/reduxjs/redux-toolkit/pull/4173](https://github.com/reduxjs/redux-toolkit/pull/4173)
- [@​721-atikshaikh](https://github.com/721-atikshaikh) made
their first contribution in
[https://github.com/reduxjs/redux-toolkit/pull/4174](https://github.com/reduxjs/redux-toolkit/pull/4174)
- [@​smff](https://github.com/smff) made their first
contribution in
[https://github.com/reduxjs/redux-toolkit/pull/4186](https://github.com/reduxjs/redux-toolkit/pull/4186)
- [@​ffluk3](https://github.com/ffluk3) made their first
contribution in
[https://github.com/reduxjs/redux-toolkit/pull/4189](https://github.com/reduxjs/redux-toolkit/pull/4189)
**Full Changelog**:
https://github.com/reduxjs/redux-toolkit/compare/v2.1.0...v2.2.0
###
[`v2.1.0`](https://github.com/reduxjs/redux-toolkit/releases/tag/v2.1.0)
[Compare
Source](https://github.com/reduxjs/redux-toolkit/compare/v2.0.1...v2.1.0)
This *minor release*:
- adds withTypes methods to `listenerMiddleware` and
`createDraftSafeSelector`
- adds a `skipPollingIfUnfocused` option to RTK Query
- adds the ability to customise the `createSelector` instance used by
RTK Query
- reworks slice selector logic to avoid depending on `this` value
- fixes the order and inference of `create.asyncThunk` type parameters
- fixes requirements for meta fields returned from `queryFn`s
- marks promises that will never reject as safe, in preparation for
[https://github.com/typescript-eslint/typescript-eslint/issues/7008](https://github.com/typescript-eslint/typescript-eslint/issues/7008)
#### What's Changed
- Update docs to avoid circular type by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3948](https://github.com/reduxjs/redux-toolkit/pull/3948)
- Copy "Migrating to Modern Redux" and "RTK is Redux" docs from core
site by [@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3956](https://github.com/reduxjs/redux-toolkit/pull/3956)
- Fix store path rtk-query pokemon api tutorial by
[@​suspiciousRaccoon](https://github.com/suspiciousRaccoon) in
[https://github.com/reduxjs/redux-toolkit/pull/3611](https://github.com/reduxjs/redux-toolkit/pull/3611)
- tweak RTKQ without hooks section, and add note regarding memoization
by [@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3963](https://github.com/reduxjs/redux-toolkit/pull/3963)
- Add section regarding overriding deps by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3968](https://github.com/reduxjs/redux-toolkit/pull/3968)
- Add section re: RR custom context typing change by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3995](https://github.com/reduxjs/redux-toolkit/pull/3995)
- Add Expo demo app to CI workflow by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/3985](https://github.com/reduxjs/redux-toolkit/pull/3985)
- docs: fix a typo in queries markdown file by
[@​fatihgnc](https://github.com/fatihgnc) in
[https://github.com/reduxjs/redux-toolkit/pull/4013](https://github.com/reduxjs/redux-toolkit/pull/4013)
- Preserve nullable store state type by avoiding intersection with {} by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4011](https://github.com/reduxjs/redux-toolkit/pull/4011)
- Upgrade version of "graphql-request" by
[@​phryneas](https://github.com/phryneas) in
[https://github.com/reduxjs/redux-toolkit/pull/4026](https://github.com/reduxjs/redux-toolkit/pull/4026)
- \[graphql-request-base-query] update RTK peerDependency by
[@​phryneas](https://github.com/phryneas) in
[https://github.com/reduxjs/redux-toolkit/pull/4027](https://github.com/reduxjs/redux-toolkit/pull/4027)
- fix: improve selectFromResult memoization by
[@​thisjeremiah](https://github.com/thisjeremiah) in
[https://github.com/reduxjs/redux-toolkit/pull/4029](https://github.com/reduxjs/redux-toolkit/pull/4029)
- Rename "createSliceWithThunks" and "createThunkSlice" to
"createAppSlice" by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4035](https://github.com/reduxjs/redux-toolkit/pull/4035)
- Bump Vitest to latest version by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4047](https://github.com/reduxjs/redux-toolkit/pull/4047)
- fix inference and order of async thunk generics by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4061](https://github.com/reduxjs/redux-toolkit/pull/4061)
- Fix markdown links on Next.js page by
[@​DmitryScaletta](https://github.com/DmitryScaletta) in
[https://github.com/reduxjs/redux-toolkit/pull/4069](https://github.com/reduxjs/redux-toolkit/pull/4069)
- Introduce pre-typed listener middleware via
`listenerMiddleware.withTypes<RootState, AppDispatch>()` method by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4049](https://github.com/reduxjs/redux-toolkit/pull/4049)
- Add `.withTypes` to `createDraftSafeSelector` by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4080](https://github.com/reduxjs/redux-toolkit/pull/4080)
- Task/remove all settled by
[@​bever1337](https://github.com/bever1337) in
[https://github.com/reduxjs/redux-toolkit/pull/3917](https://github.com/reduxjs/redux-toolkit/pull/3917)
- Allow customising createSelector instance used by RTKQ by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4048](https://github.com/reduxjs/redux-toolkit/pull/4048)
- cacheLifecycle fix for fixedCacheKey in mutationThunk by
[@​riqts](https://github.com/riqts) in
[https://github.com/reduxjs/redux-toolkit/pull/4082](https://github.com/reduxjs/redux-toolkit/pull/4082)
- avoid relying on `this` in createSlice by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4071](https://github.com/reduxjs/redux-toolkit/pull/4071)
- documentation: fix grammar in redux and redux toolkit comparison by
[@​untilhamza](https://github.com/untilhamza) in
[https://github.com/reduxjs/redux-toolkit/pull/4086](https://github.com/reduxjs/redux-toolkit/pull/4086)
- Update `tsconfig.typetests.json` to include all TS files by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4091](https://github.com/reduxjs/redux-toolkit/pull/4091)
- Remove abort event listner for AbortController by
[@​Fonger](https://github.com/Fonger) in
[https://github.com/reduxjs/redux-toolkit/pull/3951](https://github.com/reduxjs/redux-toolkit/pull/3951)
- Docs: unused value 'isRejected' in code snippet by
[@​alphonsotran](https://github.com/alphonsotran) in
[https://github.com/reduxjs/redux-toolkit/pull/3301](https://github.com/reduxjs/redux-toolkit/pull/3301)
- fix/kitchen-sink-isAuthenticated: fixed isAuthenticated state change
on login fullfilled by
[@​shrijan00003](https://github.com/shrijan00003) in
[https://github.com/reduxjs/redux-toolkit/pull/3588](https://github.com/reduxjs/redux-toolkit/pull/3588)
- Fix `composeWithDevTools` spy by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4093](https://github.com/reduxjs/redux-toolkit/pull/4093)
- require queryFn meta to match base query by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/4098](https://github.com/reduxjs/redux-toolkit/pull/4098)
- Added 'SafePromise' branded Promises for createAsyncThunk by
[@​JoshuaKGoldberg](https://github.com/JoshuaKGoldberg) in
[https://github.com/reduxjs/redux-toolkit/pull/4102](https://github.com/reduxjs/redux-toolkit/pull/4102)
- Add React Native demo app to CI workflow by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/3984](https://github.com/reduxjs/redux-toolkit/pull/3984)
- Modernize unit test setup by
[@​aryaemami59](https://github.com/aryaemami59) in
[https://github.com/reduxjs/redux-toolkit/pull/4114](https://github.com/reduxjs/redux-toolkit/pull/4114)
- Add missing reducer field to ConfigureStoreOptions docs by
[@​nickgirardo](https://github.com/nickgirardo) in
[https://github.com/reduxjs/redux-toolkit/pull/4116](https://github.com/reduxjs/redux-toolkit/pull/4116)
- Option for queries to pause polling when unfocused by
[@​riqts](https://github.com/riqts) in
[https://github.com/reduxjs/redux-toolkit/pull/4055](https://github.com/reduxjs/redux-toolkit/pull/4055)
#### New Contributors
- [@​suspiciousRaccoon](https://github.com/suspiciousRaccoon)
made their first contribution in
[https://github.com/reduxjs/redux-toolkit/pull/3611](https://github.com/reduxjs/redux-toolkit/pull/3611)
- [@​fatihgnc](https://github.com/fatihgnc) made their first
contribution in
[https://github.com/reduxjs/redux-toolkit/pull/4013](https://github.com/reduxjs/redux-toolkit/pull/4013)
- [@​thisjeremiah](https://github.com/thisjeremiah) made their
first contribution in
[https://github.com/reduxjs/redux-toolkit/pull/4029](https://github.com/reduxjs/redux-toolkit/pull/4029)
- [@​riqts](https://github.com/riqts) made their first
contribution in
[https://github.com/reduxjs/redux-toolkit/pull/4082](https://github.com/reduxjs/redux-toolkit/pull/4082)
- [@​untilhamza](https://github.com/untilhamza) made their first
contribution in
[https://github.com/reduxjs/redux-toolkit/pull/4086](https://github.com/reduxjs/redux-toolkit/pull/4086)
- [@​Fonger](https://github.com/Fonger) made their first
contribution in
[https://github.com/reduxjs/redux-toolkit/pull/3951](https://github.com/reduxjs/redux-toolkit/pull/3951)
- [@​alphonsotran](https://github.com/alphonsotran) made their
first contribution in
[https://github.com/reduxjs/redux-toolkit/pull/3301](https://github.com/reduxjs/redux-toolkit/pull/3301)
- [@​shrijan00003](https://github.com/shrijan00003) made their
first contribution in
[https://github.com/reduxjs/redux-toolkit/pull/3588](https://github.com/reduxjs/redux-toolkit/pull/3588)
- [@​JoshuaKGoldberg](https://github.com/JoshuaKGoldberg) made
their first contribution in
[https://github.com/reduxjs/redux-toolkit/pull/4102](https://github.com/reduxjs/redux-toolkit/pull/4102)
- [@​nickgirardo](https://github.com/nickgirardo) made their
first contribution in
[https://github.com/reduxjs/redux-toolkit/pull/4116](https://github.com/reduxjs/redux-toolkit/pull/4116)
**Full Changelog**:
https://github.com/reduxjs/redux-toolkit/compare/v2.0.1...v2.1.0
###
[`v2.0.1`](https://github.com/reduxjs/redux-toolkit/compare/v2.0.0...v2.0.1)
[Compare
Source](https://github.com/reduxjs/redux-toolkit/compare/v2.0.0...v2.0.1)
###
[`v2.0.0`](https://github.com/reduxjs/redux-toolkit/releases/tag/v2.0.0)
[Compare
Source](https://github.com/reduxjs/redux-toolkit/compare/v1.9.7...v2.0.0)
This **major release** :
- Removes the deprecated object syntax from `createSlice` and
`createReducer`
- Removes other deprecated options
- Updates the `middleware` and `enhancers` options of `configureStore`
to require callbacks
- Updates the packaging for better ESM/CJS compatibility and modernizes
the build output
- Includes all changes to [Redux core
5.0](https://github.com/reduxjs/redux/releases/tag/v5.0.0), [Reselect
5.0](https://github.com/reduxjs/reselect/releases/tag/v5.0.0), and
[Redux Thunk
3.0](https://github.com/reduxjs/redux-thunk/releases/tag/v3.0.0)
- Updates RTKQ default subscription behavior
- Adds a new `combineSlices` method with support for lazy-loading slice
reducers
- Adds a new "dynamic middleware" middleware with support for adding
middleware at runtime
- Adds a new callback syntax to `createSlice.reducers`, with optional
support for defining thunks inside of `createSlice`
- Adds the `autoBatchEnhancer` to `configureStore` by default
- Has many additional TS tweaks and improvements
This release has **breaking changes**. (Note: v2.0.1 was released with a
couple hotfixes for Reselect and Redux Thunk right as this was being
finalized.)
This release is part of a wave of major versions of all the Redux
packages: **Redux Toolkit 2.0, Redux core 5.0, React-Redux 9.0, Reselect
5.0, and Redux Thunk 3.0**.
For full details on all of the breaking changes and other significant
changes to all of those packages, see the **["Migrating to RTK 2.0 and
Redux 5.0" migration
guide](https://redux.js.org/usage/migrations/migrating-rtk-2)** in the
Redux docs.
> \[!NOTE]
> The Redux core, Reselect, and Redux Thunk packages are included as
part of Redux Toolkit, and RTK users do not need to manually upgrade
them - you'll get them as part of the upgrade to RTK 2.0. (If you're not
using Redux Toolkit yet, [**please start migrating your existing legacy
Redux code to use Redux Toolkit
today!**](https://redux.js.org/usage/migrating-to-modern-redux))
```bash
##### RTK
npm install @​reduxjs/toolkit
yarn add @​reduxjs/toolkit
```
##### Changelog
##### Object syntax for `createSlice.extraReducers` and `createReducer`
removed
RTK's `createReducer` API was originally designed to accept a lookup
table of action type strings to case reducers, like `{ "ADD_TODO":
(state, action) => {} }`. We later added the "builder callback" form to
allow more flexibility in adding "matchers" and a default handler, and
did the same for `createSlice.extraReducers`.
We have removed the "object" form for both `createReducer` and
`createSlice.extraReducers` in RTK 2.0, as the builder callback form is
effectively the same number of lines of code, and works much better with
TypeScript.
As an example, this:
```ts
const todoAdded = createAction('todos/todoAdded')
createReducer(initialState, {
[todoAdded]: (state, action) => {},
})
createSlice({
name,
initialState,
reducers: {
/* case reducers here */
},
extraReducers: {
[todoAdded]: (state, action) => {},
},
})
```
should be migrated to:
```ts
createReducer(initialState, (builder) => {
builder.addCase(todoAdded, (state, action) => {})
})
createSlice({
name,
initialState,
reducers: {
/* case reducers here */
},
extraReducers: (builder) => {
builder.addCase(todoAdded, (state, action) => {})
},
})
```
##### Codemods
To simplify upgrading codebases, we've published a set of codemods that
will automatically transform the deprecated "object" syntax into the
equivalent "builder" syntax.
The codemods package is available on NPM as
[`@reduxjs/rtk-codemods`](https://www.npmjs.com/package/@​reduxjs/rtk-codemods).
More details are available [here](../api/codemods).
To run the codemods against your codebase, run `npx
@​reduxjs/rtk-codemods <TRANSFORM NAME> path/of/files/
or/some**/*glob.js.`
Examples:
```sh
npx @​reduxjs/rtk-codemods createReducerBuilder ./src
npx @​reduxjs/rtk-codemods createSliceBuilder ./packages/my-app/**/*.ts
```
We also recommend re-running Prettier on the codebase before committing
the changes.
These codemods should work, but we would greatly appreciate feedback
from more real-world codebases!
##### `configureStore` Options Changes
##### `configureStore.middleware` must be a callback
Since the beginning, `configureStore` has accepted a direct array value
as the `middleware` option. However, providing an array directly
prevents `configureStore` from calling `getDefaultMiddleware()`. So,
`middleware: [myMiddleware]` means there is no thunk middleware added
(or any of the dev-mode checks).
This is a footgun, and we've had numerous users accidentally do this and
cause their apps to fail because the default middleware never got
configured.
As a result, we've now made the `middleware` only accept the callback
form. *If* for some reason you still want to replace *all* of the
built-in middleware, do so by returning an array from the callback:
```ts
const store = configureStore({
reducer,
middleware: (getDefaultMiddleware) => {
// WARNING: this means that _none_ of the default middleware are added!
return [myMiddleware]
// or for TS users, use:
// return new Tuple(myMiddleware)
},
})
```
But note that **we consistently recommend not replacing the default
middleware entirely**, and that you should use `return
getDefaultMiddleware().concat(myMiddleware)`.
##### `configureStore.enhancers` must be a callback
Similarly to `configureStore.middleware`, the `enhancers` field must
also be a callback, for the same reasons.
The callback will receive a `getDefaultEnhancers` function that can be
used to customise the batching enhancer [that's now included by
default](#configurestore-adds-autobatchenhancer-by-default).
For example:
```ts
const store = configureStore({
reducer,
enhancers: (getDefaultEnhancers) => {
return getDefaultEnhancers({
autoBatch: { type: 'tick' },
}).concat(myEnhancer)
},
})
```
It's important to note that the result of `getDefaultEnhancers` will
**also** contain the middleware enhancer created with any
configured/default middleware. To help prevent mistakes,
`configureStore` will log an error to console if middleware was provided
and the middleware enhancer wasn't included in the callback result.
```ts
const store = configureStore({
reducer,
enhancers: (getDefaultEnhancers) => {
return [myEnhancer] // we've lost the middleware here
// instead:
return getDefaultEnhancers().concat(myEnhancer)
},
})
```
Also, note that **if you supply the `enhancers` field, it *must* come
*after* the `middleware` field in order for TS inference to work
properly**.
##### Standalone `getDefaultMiddleware` and `getType` removed
The standalone version of `getDefaultMiddleware` has been deprecated
since v1.6.1, and has now been removed. Use the function passed to the
`middleware` callback instead, which has the correct types.
We have also removed the `getType` export, which was used to extract a
type string from action creators made with `createAction`. Instead, use
the static property `actionCreator.type`.
##### RTK Query behaviour changes
We've had a number of reports where RTK Query had issues around usage of
`dispatch(endpoint.initiate(arg, {subscription: false}))`. There were
also reports that multiple triggered lazy queries were resolving the
promises at the wrong time. Both of these had the same underlying issue,
which was that RTKQ wasn't tracking cache entries in these cases
(intentionally). We've reworked the logic to always track cache entries
(and remove them as needed), which should resolve those behavior issues.
We also have had issues raised about trying to run multiple mutations in
a row and how tag invalidation behaves. RTKQ now has internal logic to
delay tag invalidation briefly, to allow multiple invalidations to get
handled together. This is controlled by a new `invalidationBehavior:
'immediate' | 'delayed'` flag on `createApi`. The new default behavior
is `'delayed'`. Set it to `'immediate'` to revert to the behavior in RTK
1.9.
In RTK 1.9, we reworked RTK Query's internals to keep most of the
subscription status inside the RTKQ middleware. The values are still
synced to the Redux store state, but this is primarily for display by
the Redux DevTools "RTK Query" panel. Related to the cache entry changes
above, we've optimized how often those values get synced to the Redux
state for perf.
##### ESM/CJS Package Compatibility
The biggest theme of the Redux v5 and RTK 2.0 releases is trying to get
"true" ESM package publishing compatibility in place, while still
supporting CJS in the published package.
**The primary build artifact is now an ESM file,
`dist/redux-toolkit.modern.mjs`**. Most build tools should pick this up.
There's also a CJS artifact, and a second copy of the ESM file named
`redux-toolkit.legacy-esm.js` to support Webpack 4 (which does not
recognize the `exports` field in `package.json`). Additionally, all of
the build artifacts now live under `./dist/` in the published package.
##### Modernized Build Output
We now publish modern JS syntax targeting ES2020, including optional
chaining, object spread, and other modern syntax. If you need to
##### Build Tooling
We're now building the package using https://github.com/egoist/tsup. We
also now include sourcemaps for the ESM and CJS artifacts.
##### Dropping UMD Builds
Redux has always shipped with UMD build artifacts. These are primarily
meant for direct import as script tags, such as in a CodePen or a
no-bundler build environment.
We've dropped those build artifacts from the published package, on the
grounds that the use cases seem pretty rare today.
There's now a `redux-toolkit.browser.mjs` file in the package that can
be loaded from a CDN like Unpkg.
If you have strong use cases for us continuing to include UMD build
artifacts, please let us know!
##### Dependency Updates
##### Redux Libraries
RTK now depends on **[Redux core
5.0](https://github.com/reduxjs/redux/releases/tag/v5.0.0), [Reselect
5.0](https://github.com/reduxjs/reselect/releases/tag/v5.0.0), and
[Redux Thunk
3.0](https://github.com/reduxjs/redux-thunk/releases/tag/v3.0.0)**.
See the linked release notes for those libraries, as **each of them has
additional breaking changes**. The ["Migrating to RTK 2.0 and Redux 5.0"
docs page](https://redux.js.org/usage/migrations/migrating-rtk-2) also
covers the combined changes in one page
##### Immer 10
RTK now also depends on [Immer
10.0](https://github.com/immerjs/immer/releases/tag/v10.0.0), which
has several major improvements and updates:
- Much faster update perf
- Much smaller bundle size
- Better ESM/CJS package formatting
- No default export
- No ES5 fallback
We've also removed the prior call to automatically enable the Immer ES5
fallback mode any time RTK was loaded.
##### Other Changes
##### Bundle Size Optimizations
Redux 4.1.0 optimized its bundle size by [extracting error message
strings out of production
builds](https://github.com/reduxjs/redux/releases/tag/v4.1.0), based
on React's approach. We've applied the same technique to RTK. This saves
about 1000 bytes from prod bundles (actual benefits will depend on which
imports are being used).
We also noted that [ESBuild does not deduplicate imports when it bundles
source files](https://github.com/evanw/esbuild/issues/475), and this
was causing RTK Query's bundle to contain a dozen references to `import
{ } from "@​reduxjs/toolkit"`, including some of the same methods.
Manually deduplicating those saves about 600 bytes off the production
RTKQ artifact.
##### `reactHooksModule` custom hook configuration
Previously, custom versions of React Redux's hooks (`useSelector`,
`useDispatch`, and `useStore`) could be passed separately to
`reactHooksModule`, usually to enable using a different context to the
default `ReactReduxContext`.
In practicality, the react hooks module needs all three of these hooks
to be provided, and it became an easy mistake to only pass `useSelector`
and `useDispatch`, without `useStore`.
The module has now moved all three of these under the same configuration
key, and will check that all three are provided if the key is present.
```ts
// previously
const customCreateApi = buildCreateApi(
coreModule(),
reactHooksModule({
useDispatch: createDispatchHook(MyContext),
useSelector: createSelectorHook(MyContext),
useStore: createStoreHook(MyContext),
})
)
// now
const customCreateApi = buildCreateApi(
coreModule(),
reactHooksModule({
hooks: {
useDispatch: createDispatchHook(MyContext),
useSelector: createSelectorHook(MyContext),
useStore: createStoreHook(MyContext),
},
})
)
```
##### Deprecated Options Removed
Several other options were previously marked as deprecated, and have
been removed. We've also removed polyfills like the `AbortController`
polyfill.
##### TypeScript Changes
##### `configureStore` field order for `middleware` matters
If you are passing *both* the `middleware` and `enhancers` fields to
`configureStore`, the `middleware` field *must* come first in order for
internal TS inference to work properly.
##### Non-default middleware/enhancers must use `Tuple`
We've seen many cases where users passing the `middleware` parameter to
configureStore have tried spreading the array returned by
`getDefaultMiddleware()`, or passed an alternate plain array. This
unfortunately loses the exact TS types from the individual middleware,
and often causes TS problems down the road (such as `dispatch` being
typed as `Dispatch<AnyAction>` and not knowing about thunks).
`getDefaultMiddleware()` already used an internal `MiddlewareArray`
class, an `Array` subclass that had strongly typed `.concat/prepend()`
methods to correctly capture and retain the middleware types.
We've renamed that type to `Tuple`, and `configureStore`'s TS types now
require that you *must* use `Tuple` if you want to pass your own array
of middleware:
```ts
import { configureStore, Tuple } from '@​reduxjs/toolkit'
configureStore({
reducer: rootReducer,
middleware: (getDefaultMiddleware) => new Tuple(additionalMiddleware, logger),
})
```
(Note that this has no effect if you're using RTK with plain JS, and you
could still pass a plain array here.)
This same restriction applies to the `enhancers` field.
##### Entity adapter type updates
`createEntityAdapter` now has an `Id` generic argument, which will be
used to strongly type the item IDs anywhere those are exposed.
Previously, the ID field type was always `string | number`. TS will now
try to infer the exact type from either the `.id` field of your entity
type, or the `selectId` return type. You could also fall back to passing
that generic type directly. **If you use the `EntityState<Data, Id>`
type directly, you *must* supply both generic arguments!**
The `.entities` lookup table is now defined to use a standard TS
`Record<Id, MyEntityType>`, which assumes that each item lookup exists
by default. Previously, it used a `Dictionary<MyEntityType>` type, which
assumed the result was `MyEntityType | undefined`. The `Dictionary` type
has been removed.
If you prefer to assume that the lookups *might* be undefined, use
TypeScript's `noUncheckedIndexedAccess` configuration option to control
that.
##### New Features
These features are new in Redux Toolkit 2.0, and help cover additional
use cases that we've seen users ask for in the ecosystem.
##### `combineSlices` API with slice reducer injection for
code-splitting
The Redux core has always included `combineReducers`, which takes an
object full of "slice reducer" functions and generates a reducer that
calls those slice reducers. RTK's `createSlice` generates slice reducers
+ associated action creators, and we've taught the pattern of exporting
individual action creators as named exports and the slice reducer as a
default export. Meanwhile, we've never had official support for
lazy-loading reducers, although we've had [sample code for some "reducer
injection" patterns in our
docs](https://redux.js.org/usage/code-splitting).
This release includes a new [`combineSlices`](../api/combineSlices) API
that is designed to enable lazy-loading of reducers at runtime. It
accepts individual slices or an object full of slices as arguments, and
automatically calls `combineReducers` using the `sliceObject.name` field
as the key for each state field. The generated reducer function has an
additional `.inject()` method attached that can be used to dynamically
inject additional slices at runtime. It also includes a
`.withLazyLoadedSlices()` method that can be used to generate TS types
for reducers that will be added later. See
[#​2776](https://github.com/reduxjs/redux-toolkit/issues/2776)
for the original discussion around this idea.
For now, we are not building this into `configureStore`, so you'll need
to call `const rootReducer = combineSlices(.....)` yourself and pass
that to `configureStore({reducer: rootReducer})`.
**Basic usage: a mixture of slices and standalone reducers passed to
`combineSlices`**
```ts
const stringSlice = createSlice({
name: 'string',
initialState: '',
reducers: {},
})
const numberSlice = createSlice({
name: 'number',
initialState: 0,
reducers: {},
})
const booleanReducer = createReducer(false, () => {})
const api = createApi(/* */)
const combinedReducer = combineSlices(
stringSlice,
{
num: numberSlice.reducer,
boolean: booleanReducer,
},
api
)
expect(combinedReducer(undefined, dummyAction())).toEqual({
string: stringSlice.getInitialState(),
num: numberSlice.getInitialState(),
boolean: booleanReducer.getInitialState(),
api: api.reducer.getInitialState(),
})
```
**Basic slice reducer injection**
```ts
// Create a reducer with a TS type that knows `numberSlice` will be injected
const combinedReducer =
combineSlices(stringSlice).withLazyLoadedSlices<
WithSlice<typeof numberSlice>
>()
// `state.number` doesn't exist initially
expect(combinedReducer(undefined, dummyAction()).number).toBe(undefined)
// Create a version of the reducer with `numberSlice` injected (mainly useful for types)
const injectedReducer = combinedReducer.inject(numberSlice)
// `state.number` now exists, and injectedReducer's type no longer marks it as optional
expect(injectedReducer(undefined, dummyAction()).number).toBe(
numberSlice.getInitialState()
)
// original reducer has also been changed (type is still optional)
expect(combinedReducer(undefined, dummyAction()).number).toBe(
numberSlice.getInitialState()
)
```
##### `selectors` field in `createSlice`
The existing `createSlice` API now has support for defining
[`selectors`](../api/createSlice#selectors) directly as part of the
slice. By default, these will be generated with the assumption that the
slice is mounted in the root state using `slice.name` as the field, such
as `name: "todos"` -> `rootState.todos`. Additionally, there's now a
`slice.selectSlice` method that does that default root state lookup.
You can call `sliceObject.getSelectors(selectSliceState)` to generate
the selectors with an alternate location, similar to how
`entityAdapter.getSelectors()` works.
```ts
const slice = createSlice({
name: 'counter',
initialState: 42,
reducers: {},
selectors: {
selectSlice: (state) => state,
selectMultiple: (state, multiplier: number) => state * multiplier,
},
})
// Basic usage
const testState = {
[slice.name]: slice.getInitialState(),
}
const { selectSlice, selectMultiple } = slice.selectors
expect(selectSlice(testState)).toBe(slice.getInitialState())
expect(selectMultiple(testState, 2)).toBe(slice.getInitialState() * 2)
// Usage with the slice reducer mounted under a different key
const customState = {
number: slice.getInitialState(),
}
const { selectSlice, selectMultiple } = slice.getSelectors(
(state: typeof customState) => state.number
)
expect(selectSlice(customState)).toBe(slice.getInitialState())
expect(selectMultiple(customState, 2)).toBe(slice.getInitialState() * 2)
```
##### `createSlice.reducers` callback syntax and thunk support
One of the oldest feature requests we've had is the ability to declare
thunks directly inside of `createSlice`. Until now, you've always had to
declare them separately, give the thunk a string action prefix, and
handle the actions via `createSlice.extraReducers`:
```ts
// Declare the thunk separately
const fetchUserById = createAsyncThunk(
'users/fetchByIdStatus',
async (userId: number, thunkAPI) => {
const response = await userAPI.fetchById(userId)
return response.data
}
)
const usersSlice = createSlice({
name: 'users',
initialState,
reducers: {
// standard reducer logic, with auto-generated action types per reducer
},
extraReducers: (builder) => {
// Add reducers for additional action types here, and handle loading state as needed
builder.addCase(fetchUserById.fulfilled, (state, action) => {
state.entities.push(action.payload)
})
},
})
```
Many users have told us that this separation feels awkward.
We've *wanted* to include a way to define thunks directly inside of
`createSlice`, and have played around with various prototypes. There
were always two major blocking issues, and a secondary concern:
1. It wasn't clear what the syntax for declaring a thunk inside should
look like.
2. Thunks have access to `getState` and `dispatch`, but the `RootState`
and `AppDispatch` types are normally inferred from the store, which in
turn infers it from the slice state types. Declaring thunks inside
`createSlice` would cause circular type inference errors, as the store
needs the slice types but the slice needs the store types. We weren't
willing to ship an API that would work okay for our JS users but not for
our TS users, especially since we *want* people to use TS with RTK.
3. You can't do synchronous conditional imports in ES modules, and
there's no good way to make the `createAsyncThunk` import optional.
Either `createSlice` always depends on it (and adds that to the bundle
size), or it can't use `createAsyncThunk` at all.
We've settled on these compromises:
- **In order to create async thunks with `createSlice`, you specifically
need to [set up a custom version of `createSlice` that has access to
`createAsyncThunk`](../api/createSlice#createasyncthunk)**.
- You can declare thunks inside of `createSlice.reducers`, by using a
"creator callback" syntax for the `reducers` field that is similar to
the `build` callback syntax in RTK Query's `createApi` (using typed
functions to create fields in an object). Doing this does look a bit
different than the existing "object" syntax for the `reducers` field,
but is still fairly similar.
- You can customize *some* of the types for thunks inside of
`createSlice`, but you *cannot* customize the `state` or `dispatch`
types. If those are needed, you can manually do an `as` cast, like
`getState() as RootState`.
In practice, we hope these are reasonable tradeoffs. Creating thunks
inside of `createSlice` has been widely asked for, so we think it's an
API that will see usage. If the TS customization options are a
limitation, you can still declare thunks outside of `createSlice` as
always, and most async thunks don't need `dispatch` or `getState` - they
just fetch data and return. And finally, setting up a custom
`createSlice` allows you to opt into `createAsyncThunk` being included
in your bundle size (though it may already be included if used directly
or as part of RTK Query - in either of these cases there's no
*additional* bundle size).
Here's what the new callback syntax looks like:
```ts
const createSliceWithThunks = buildCreateSlice({
creators: { asyncThunk: asyncThunkCreator },
})
const todosSlice = createSliceWithThunks({
name: 'todos',
initialState: {
loading: false,
todos: [],
error: null,
} as TodoState,
reducers: (create) => ({
// A normal "case reducer", same as always
deleteTodo: create.reducer((state, action: PayloadAction<number>) => {
state.todos.splice(action.payload, 1)
}),
// A case reducer with a "prepare callback" to customize the action
addTodo: create.preparedReducer(
(text: string) => {
const id = nanoid()
return { payload: { id, text } }
},
// action type is inferred from prepare callback
(state, action) => {
state.todos.push(action.payload)
}
),
// An async thunk
fetchTodo: create.asyncThunk(
// Async payload function as the first argument
async (id: string, thunkApi) => {
const res = await fetch(`myApi/todos?id=${id}`)
return (await res.json()) as Item
},
// An object containing `{pending?, rejected?, fulfilled?, settled?, options?}` second
{
pending: (state) => {
state.loading = true
},
rejected: (state, action) => {
state.error = action.payload ?? action.error
},
fulfilled: (state, action) => {
state.todos.push(action.payload)
},
// settled is called for both rejected and fulfilled actions
settled: (state, action) => {
state.loading = false
},
}
),
}),
})
// `addTodo` and `deleteTodo` are normal action creators.
// `fetchTodo` is the async thunk
export const { addTodo, deleteTodo, fetchTodo } = todosSlice.actions
```
##### Codemod
**Using the new callback syntax is entirely optional (the object syntax
is still standard)**, but an existing slice would need to be converted
before it can take advantage of the new capabilities this syntax
provides. To make this easier, a [codemod](../api/codemods) is provided.
```sh
npx @​reduxjs/rtk-codemods createSliceReducerBuilder ./src/features/todos/slice.ts
```
##### "Dynamic middleware" middleware
A Redux store's middleware pipeline is fixed at store creation time and
can't be changed later. We *have* seen ecosystem libraries that tried to
allow dynamically adding and removing middleware, potentially useful for
things like code splitting.
This is a relatively niche use case, but we've built [our own version of
a "dynamic middleware" middleware](../api/createDynamicMiddleware). Add
it to the Redux store at setup time, and it lets you add middleware
later at runtime. It also comes with a [React hook integration that will
automatically add a middleware to the store and return the updated
dispatch method.](../api/createDynamicMiddleware#react-integration).
```ts
import { createDynamicMiddleware, configureStore } from '@​reduxjs/toolkit'
const dynamicMiddleware = createDynamicMiddleware()
const store = configureStore({
reducer: {
todos: todosReducer,
},
middleware: (getDefaultMiddleware) =>
getDefaultMiddleware().prepend(dynamicMiddleware.middleware),
})
// later
dynamicMiddleware.addMiddleware(someOtherMiddleware)
```
##### `configureStore` adds `autoBatchEnhancer` by default
[In v1.9.0, we added a new
`autoBatchEnhancer`](https://github.com/reduxjs/redux-toolkit/releases/tag/v1.9.0)
that delays notifying subscribers briefly when multiple "low-priority"
actions are dispatched in a row. This improves perf, as UI updates are
typically the most expensive part of the update process. RTK Query marks
most of its own internal actions as "low-pri" by default, but you have
to have the `autoBatchEnhancer` added to the store to benefit from that.
We've updated `configureStore` to add the `autoBatchEnhancer` to the
store setup by default, so that users can benefit from the improved perf
without needing to manually tweak the store config themselves.
##### `entityAdapter.getSelectors` accepts a `createSelector` function
[`entityAdapter.getSelectors()`](../api/createEntityAdapter#selector-functions)
now accepts an options object as its second argument. This allows you to
pass in your own preferred `createSelector` method, which will be used
to memoize the generated selectors. This could be useful if you want to
use one of Reselect's new alternate memoizers, or some other memoization
library with an equivalent signature.
##### Next.js Setup Guide
We now have a docs page that covers [how to set up Redux properly with
Next.js](https://redux.js.org/usage/nextjs). We've seen a lot of
questions around using Redux, Next, and the App Router together, and
this guide should help provide advice.
(At this time, the Next.js `with-redux` example is still showing
outdated patterns - we're going to file a PR shortly to update that to
match our docs guide.)
##### What's Changed
- Remove legacy object syntax for reducers by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3051](https://github.com/reduxjs/redux-toolkit/pull/3051)
- Upgrade build tooling by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3088](https://github.com/reduxjs/redux-toolkit/pull/3088)
- Migrate the RTK package to be full ESM by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3095](https://github.com/reduxjs/redux-toolkit/pull/3095)
- Migrate RTK test suite from Jest to Vitest by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3102](https://github.com/reduxjs/redux-toolkit/pull/3102)
- Fix type errors after upgrading to Redux 5 alpha by
[@​Methuselah96](https://github.com/Methuselah96) in
[https://github.com/reduxjs/redux-toolkit/pull/3177](https://github.com/reduxjs/redux-toolkit/pull/3177)
- Bump Redux dep to 5.0.0-alpha.2 by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3170](https://github.com/reduxjs/redux-toolkit/pull/3170)
- Test published artifacts in CI by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3213](https://github.com/reduxjs/redux-toolkit/pull/3213)
- Merge RTK CI examples into `v2.0-integration` by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3253](https://github.com/reduxjs/redux-toolkit/pull/3253)
- Add `arethetypeswrong` automated CLI check by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3294](https://github.com/reduxjs/redux-toolkit/pull/3294)
- update tip regarding overrideExisting to match actual behaviour by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3305](https://github.com/reduxjs/redux-toolkit/pull/3305)
- Add `attw` CLI option to treat problems as non-errors by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3316](https://github.com/reduxjs/redux-toolkit/pull/3316)
- Rework build setup and hopefully fix ESM compat issues by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3318](https://github.com/reduxjs/redux-toolkit/pull/3318)
- Bump Immer to 10.0-beta by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3320](https://github.com/reduxjs/redux-toolkit/pull/3320)
- Switch build setup from a custom ESBuild+TS script to `tsup` by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3362](https://github.com/reduxjs/redux-toolkit/pull/3362)
- Use original instead of immer draft for perf by
[@​GeorchW](https://github.com/GeorchW) in
[https://github.com/reduxjs/redux-toolkit/pull/3270](https://github.com/reduxjs/redux-toolkit/pull/3270)
- enable enhanceEndpoints.transformResponse to override ResultType by
[@​dmitrigrabov](https://github.com/dmitrigrabov) in
[https://github.com/reduxjs/redux-toolkit/pull/2953](https://github.com/reduxjs/redux-toolkit/pull/2953)
- Fix global `responseHandler` being used in `fetchBaseQuery` by
[@​praxxis](https://github.com/praxxis) in
[https://github.com/reduxjs/redux-toolkit/pull/3137](https://github.com/reduxjs/redux-toolkit/pull/3137)
- reset internalState.currentSubscriptions on `resetApiState` by
[@​phryneas](https://github.com/phryneas) in
[https://github.com/reduxjs/redux-toolkit/pull/3333](https://github.com/reduxjs/redux-toolkit/pull/3333)
- Bump deps and mark `subscriptionUpdated` as autobatched by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3364](https://github.com/reduxjs/redux-toolkit/pull/3364)
- Redux 5alpha5 by [@​EskiMojo14](https://github.com/EskiMojo14)
in
[https://github.com/reduxjs/redux-toolkit/pull/3367](https://github.com/reduxjs/redux-toolkit/pull/3367)
- add isAction helper function, and ensure listener middleware only runs
for actions by [@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3372](https://github.com/reduxjs/redux-toolkit/pull/3372)
- Allow inference of enhancer state extensions, and fix inference when
using callback form by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3207](https://github.com/reduxjs/redux-toolkit/pull/3207)
- combineSlices implementation by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3297](https://github.com/reduxjs/redux-toolkit/pull/3297)
- Bump Immer to 10.0 final by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3376](https://github.com/reduxjs/redux-toolkit/pull/3376)
- Allow partial preloaded state for combined slice reducer and update
devDeps by [@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3381](https://github.com/reduxjs/redux-toolkit/pull/3381)
- ensure it's only possible to pass all or none of the hooks to
reactHooksModule by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3400](https://github.com/reduxjs/redux-toolkit/pull/3400)
- Remove remaining deprecated exports by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3398](https://github.com/reduxjs/redux-toolkit/pull/3398)
- create action creator middleware by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3414](https://github.com/reduxjs/redux-toolkit/pull/3414)
- Restore query status types by
[@​markerikson](https://github.com/markerikson) in
[https://github.com/reduxjs/redux-toolkit/pull/3420](https://github.com/reduxjs/redux-toolkit/pull/3420)
- Implement auto fork joining by
[@​ericanderson](https://github.com/ericanderson) in
[https://github.com/reduxjs/redux-toolkit/pull/3407](https://github.com/reduxjs/redux-toolkit/pull/3407)
- types: make it easier to wrap createAsyncThunk by
[@​shrouxm](https://github.com/shrouxm) in
[https://github.com/reduxjs/redux-toolkit/pull/3393](https://github.com/reduxjs/redux-toolkit/pull/3393)
- Fixed Stackoverflow bug if children prop is a ref to root/parent
object by [@​cheprasov](https://github.com/cheprasov) in
[https://github.com/reduxjs/redux-toolkit/pull/3428](https://github.com/reduxjs/redux-toolkit/pull/3428)
- Add getDefaultEnhancers callback, and add autoBatchEnhancer to
defaults. by [@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3347](https://github.com/reduxjs/redux-toolkit/pull/3347)
- Update to Redux alpha 6 by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3442](https://github.com/reduxjs/redux-toolkit/pull/3442)
- Remove toString override from action creators, in favour of explicit
.type field. by [@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3425](https://github.com/reduxjs/redux-toolkit/pull/3425)
- Add "creator callback" syntax to slice reducer field, to allow for
async thunk creation by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3388](https://github.com/reduxjs/redux-toolkit/pull/3388)
- API for adding middleware dynamically by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3292](https://github.com/reduxjs/redux-toolkit/pull/3292)
- Add Id type parameter in createEntityAdapter by
[@​Matt-Ord](https://github.com/Matt-Ord) in
[https://github.com/reduxjs/redux-toolkit/pull/3187](https://github.com/reduxjs/redux-toolkit/pull/3187)
- Require usage of Tuple in TS by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3460](https://github.com/reduxjs/redux-toolkit/pull/3460)
- Require that enhancers is a callback by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3461](https://github.com/reduxjs/redux-toolkit/pull/3461)
- fix invalid createEntityAdapter call by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3490](https://github.com/reduxjs/redux-toolkit/pull/3490)
- Use Record\<EntityId, T> instead of Dictionary<T> by
[@​EskiMojo14](https://github.com/EskiMojo14) in
[https://github.com/reduxjs/redux-toolkit/pull/3424](https://github.com/redux
</details>
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Fixes #3206