Add API to Renderer to trigger a UI refresh on hot reload #30884

pranavkm · 2021-03-12T17:50:59Z

Draft based on offline discussions. I was able to plug this in to an app and verify this implementation works at least for the templates. I'll try and get some rudimentary tests added for this soon

src/Components/Components/src/RenderTree/RenderTreeDiffBuilder.cs

src/Components/Components/src/HotReload/HotReloadManager.cs

src/Components/Components/src/Rendering/ComponentState.cs

src/Components/Components/src/RenderTree/RenderTreeDiffBuilder.cs

src/Components/Components/src/RenderTree/Renderer.cs

SteveSandersonMS · 2021-03-12T18:38:22Z

src/Components/Components/src/HotReload/HotReloadManager.cs

+    internal static class HotReloadManager
+    {
+        // Hot reload stuff
+        internal static bool IsHotReloadEnabled = Environment.GetEnvironmentVariable("COMPLUS_ForceEnc") == "1";


Interesting. Is this temporary or permanent?

Let me see if we could convince the runtime to add this as a capability.

src/Components/Components/src/ComponentBase.cs

src/Components/Components/src/HotReload/HotReloadManager.cs

src/Components/Components/src/RenderTree/Renderer.cs

src/Components/Components/src/Rendering/ComponentState.cs

src/Components/Components/src/RenderTree/Renderer.cs

src/Components/Components/src/HotReload/HotReloadEnvironment.cs

pranavkm · 2021-03-16T06:13:17Z

🆙 📅

src/Components/Components/src/HotReload/HotReloadContext.cs

src/Components/Components/src/HotReload/IReceiveHotReloadContext.cs

src/Components/Components/src/Microsoft.AspNetCore.Components.csproj

src/Components/Components/src/ParameterView.cs

src/Components/Components/src/Properties/ILLink.Substitutions.xml

javiercn · 2021-03-16T10:20:31Z

@pranavkm is this still draft?

src/Components/Components/src/RenderTree/Renderer.cs

javiercn · 2021-03-16T10:22:33Z

Looks good to me in general, I'm wondering 2 things:

Should we cover our three modes of operation in test?
- Blazor server
- Blazor webassembly standalone
- Blazor webassembly hosted
Should we cover a controller that does not extend controllerbase?

SteveSandersonMS · 2021-03-16T10:34:19Z

src/Components/Components/src/RenderTree/Renderer.cs

+                        AddToPendingTasks(componentState.Component.SetParametersAsync(initialParameters));
+                    }
+
+                    await ProcessAsynchronousWork();


Are you sure we should really be doing this asynchronously? That could take a completely arbitrary amount of time, maybe minutes (waiting for any component in the hierarchy to load data). During this indefinite period, there could be:

Arbitrary user interactions, which will render weirdly because of the hot reload flag

Other hot reload deltas being applied, interfering with the shared _pendingTasks field

I'm suspicious that this should really only be synchronous. We only need the component tree to re-render itself once immediately to update the state in the existing UI. If components do some async data loading, it's up to them to be able to re-render themselves afterwards.

SteveSandersonMS · 2021-03-16T10:36:07Z

src/Components/Components/src/RenderTree/Renderer.cs

+
+                    await ProcessAsynchronousWork();
+                    Debug.Assert(_pendingTasks.Count == 0);
+                }


This also brings up the point that, in some applications, hot reload refreshes might not be as state-preserving as you'd want. Consider if a root (or deep) component always does some async data loading while showing Loading... instead of its child content, then instantiates its descendant subtree. In that case, each code delta is going to retrigger this flow, and you won't get the instant update in the UI you're actually working on (you'll see "Loading..."), and any transient state in descendants will be discarded.

I'm not disputing that you're doing the right thing by re-rendering the whole tree (I'm disputing the async thing, but that's separate). I'm just realising that while our demo cases hot-reloaded really well, there will be some other cases that don't. It will be up to app developers to make their component hierarchies refresh in a nondestructive way to get the best experience. For example they should try to do data loading in OnInitializedAsync rather than OnParametersSetAsync (except if they manually compare old and new parameters) so that each hot reload doesn't rebuild the descendant tree from scratch. We should think about how to set this expectation in how we document and communicate the feature (cc @danroth27).

src/Components/Web.JS/src/GlobalExports.ts

SteveSandersonMS · 2021-03-16T10:43:08Z

src/Components/test/E2ETest/ServerExecutionTests/HotReloadTest.cs

+
+            Browser.Equal("This component was rendered 2 time(s).", () => Browser.Exists(By.TagName("h2")).Text);
+            Browser.Equal("Initial title", () => Browser.Exists(By.TagName("h3")).Text);
+            Browser.Equal("Component with ShouldRender=false was rendered 2 time(s).", () => Browser.Exists(By.TagName("h4")).Text);


Very cool to see this test. Nice! I wonder if later we'll be able to cover making an actual code edit, e.g., in the template tests.

eerhardt · 2021-03-16T14:11:28Z

src/Components/Components/src/Properties/ILLink.Substitutions.xml

+<linker>
+  <assembly fullname="Microsoft.AspNetCore.Components" >
+    <!-- Trim away hot-reload -->
+    <type fullname="Microsoft.AspNetCore.Components.HotReload.HotReloadEnvironment">


Do we need/want a feature value here? Or is the idea that whenever you are trimming this assembly, turn off HotReload?

The latter. We don't have any scenarios where we would want hot reload to be present in a published application, so it just seems prudent to trim it all the time. Do you foresee any reason to put this behind a switch?

Do you foresee any reason to put this behind a switch?

No, not at this time. I was just making sure my assumption was correct. Maybe sticking a quick comment in the xml file would help.

Just an FYI - in dotnet/runtime we also run the trimmer on each shared fx assembly during the build in order to trim away any dead code (which can be there because of shared source files), and in System.Private.CoreLib it will trim the IL for specific OS and architecture, since CoreLib targets each separately. If you were to ever run the trimmer in this way, this file would still take affect and it would trim away the HotReload stuff during your build. I don't think you have plans to do this, but I just wanted to call it out for informational purposes.

We do want these types to be present when users are developing, so we couldn't trim it as part of our build. Our codebase has fewer platform specific implementations (DataProtection is the only one that comes to mind which has lots of windows specific code).

FYI @davidfowl

Co-authored-by: Steve Sanderson <SteveSandersonMS@users.noreply.github.com>

SteveSandersonMS · 2021-03-17T14:46:33Z

src/Components/Components/src/HotReload/HotReloadEnvironment.cs

+{
+    internal class HotReloadEnvironment
+    {
+        public static readonly HotReloadEnvironment Instance = new(Environment.GetEnvironmentVariable("DOTNET_MODIFIABLE_ASSEMBLIES") == "debug");


Is there any chance that a static constructor prevents the linker from removing the type? I would guess that static constructors may always have side effects and hence always have to be left in and will run.

It's probably not a big deal. I'll leave it up to you whether you think it's worth doing in a less convenient way!

Actually I have no idea how smart the linker is about figuring out whether the static constructor would run or not.

Static ctors are hard to trim away and guarantee correctness. I believe the only time a static ctor will be trimmed is if the whole type can be trimmed. Maybe also if it was BeforeFieldInit and all the static fields were removed?

@vitek-karas and @MichalStrehovsky would know the exact rules here.

I think the rule is basically:

If it's BeforeFieldInit then linker may trim it

In this case the .cctor is preserved only if there's a field preserved on the type

Otherwise it will always keep it if it keeps the type

I was able to do some "fun" substitutions.xml to trim references to this type. Here's what the trimmed results look like now:

Removing the interface and the context is difficult because ComponentBase implements it. If we were determined we could turn the context in to a Func<bool> that would eliminate the context type.

src/Components/Components/src/RenderTree/Renderer.cs

Co-authored-by: Steve Sanderson <SteveSandersonMS@users.noreply.github.com>

…to prkrishn/hot-reload-renderer

ghost · 2021-03-17T21:14:41Z

Thank you for submitting this for API review. This will be reviewed by @dotnet/aspnet-api-review at the next meeting of the ASP.NET Core API Review group. Please ensure you take a look at the API review process documentation and ensure that:

The PR contains changes to the reference-assembly that describe the API change. Or, you have included a snippet of reference-assembly-style code that illustrates the API change.
The PR describes the impact to users, both positive (useful new APIs) and negative (breaking changes).
Someone is assigned to "champion" this change in the meeting, and they understand the impact and design of the change.

SteveSandersonMS

Looks great! Heroic work on the trimmability.

pranavkm · 2021-03-22T18:00:14Z

src/Components/Components/src/PublicAPI.Unshipped.txt

+Microsoft.AspNetCore.Components.HotReload.HotReloadContext
+Microsoft.AspNetCore.Components.HotReload.HotReloadContext.HotReloadContext() -> void
+Microsoft.AspNetCore.Components.HotReload.HotReloadContext.IsHotReloading.get -> bool
+Microsoft.AspNetCore.Components.HotReload.IReceiveHotReloadContext


Can we replace this with a property on RenderHandle? e.g. RenderHandle.IsHotReloading

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(Licence, Help wanted, Good first issue, Chat) * Use correct links * Update dependencies from https://github.com/dotnet/efcore build 20210329.1 (dotnet#31351) [main] Update dependencies from dotnet/efcore * Fix WebView header APIs and behavior (dotnet#31246) * Fix WebView header APIs and behavior - Change WebView to return dictionary of headers instead of strings (this is needed for Android) - Change StaticContentProvider to use filename (always exists) instead of physical file path (not always available) to determine MIME type - Fix WPF sample bug * Update dependencies from https://github.com/dotnet/efcore build 20210329.2 (dotnet#31352) [main] Update dependencies from dotnet/efcore * Update dependencies from https://github.com/dotnet/efcore build 20210327.1 (dotnet#31309) [release/6.0-preview3] Update dependencies from dotnet/efcore * Update dependencies from https://github.com/dotnet/runtime build 20210329.3 (dotnet#31363) [release/6.0-preview3] Update dependencies from dotnet/runtime * Refactor logging in generic classes (dotnet#31364) * Update dependencies from https://github.com/dotnet/efcore build 20210329.4 (dotnet#31366) [release/6.0-preview3] Update dependencies from dotnet/efcore * Update dependencies from https://github.com/dotnet/efcore build 20210329.3 (dotnet#31353) [main] Update dependencies from dotnet/efcore * Make RequestDelegateFactory public (was MapActionExpressionTreeBuilder) (dotnet#31171) * Make RequestDelegateBuilder public - Formerly known as MapActionExpressionTreeBuilder * Add new BuildRequestDelegate overloads * Address PR feedback * RequestDelegateBuilder -> RequestDelegateFactory * Build -> Create * Address final review feedback. * [Http] Remove some unsafe code and save a string allocation (dotnet#31267) * Use one shot pbkdf2 (dotnet#31200) * Use one shot pbkdf2 * Update NetCorePbkdf2Provider.cs * CR feedback * CR feedback * Fix * Just use GetBytes for now * Update NetCorePbkdf2Provider.cs * Use interned Header Names for known headers not in the pre-allocated block (dotnet#31311) * Use interned headernames for known headers not in the preallocated block * Switch Connection header values for interned values * Use interned strings for websockets * Keep baggage, tracestate, and traceparent with previous casing * Update src/Servers/Kestrel/shared/KnownHeaders.cs Co-authored-by: Chris Ross <Tratcher@Outlook.com> * Feedback Co-authored-by: Chris Ross <Tratcher@Outlook.com> * Revert global.json changes * Modify constructor * Remove IReceiveHotReloadContext and HotReloadContext (dotnet#31281) * Remove IReceiveHotReloadContext and HotReloadContext React to API review feedback. Substitute IReceiveHotReloadContext and HotReloadContext with RenderHandle.IsHotReloading * Fixup * Update src/Components/Components/src/RenderHandle.cs * Update src/Components/Components/src/Properties/ILLink.Substitutions.xml * Update src/Components/Components/src/Properties/ILLink.Substitutions.xml * Flow Kestrel CancellationTokens to BindAsync (dotnet#31377) * Update dependencies from https://github.com/dotnet/runtime build 20210329.5 (dotnet#31384) [main] Update dependencies from dotnet/runtime * [main] Update dependencies from dotnet/arcade (dotnet#31349) [main] Update dependencies from dotnet/arcade * Quarantine flaky test (dotnet#31389) * Clean up NetCore PBKDF2 provider. (dotnet#31391) * Update dependencies from https://github.com/dotnet/runtime build 20210330.7 (dotnet#31394) [release/6.0-preview3] Update dependencies from dotnet/runtime * Add a FeaturesCollection constructor that supports initial capacity (dotnet#31381) * Add a FeaturesCollection constructor that supports initial capacity * Raise authenticationFailed event when cert validation fails (dotnet#31370) * Unquarantine UseStartupFactoryWorks (dotnet#31297) * Update dependencies from https://github.com/dotnet/efcore build 20210330.1 (dotnet#31400) [release/6.0-preview3] Update dependencies from dotnet/efcore * Update dependencies from https://github.com/dotnet/efcore build 20210330.2 (dotnet#31401) [main] Update dependencies from dotnet/efcore * Fix generated CSS scopes in layout views and update templates (dotnet#31257) * Fix generated CSS scopes in layout views and update templates * Update template baselines * Enabled scoped CSS for MVC template tests * Bring back static CSS file * Quarantine ClosesAfterDataSent (dotnet#31405) * Update CONTRIBUTING.md (dotnet#31371) Removed tab that seemed to cause a paragraph about the new help wanted label to be in a code fence. * Support round trip serialization of AuthenticationProperties with System.Text.Json (dotnet#31330) dotnet#20722 * Update Microsoft.Net.Compilers.Toolset (dotnet#31403) * Improve test failures for unexpected logs (dotnet#31406) * Add ToString() to Testing's log WriteContext * Update StrictTestServerTests to only show unexpected log * Undo template change that induced flakiness (dotnet#31417) * Add helpful exception message when exception handler returns 404 (dotnet#31142) * Update dependencies from https://github.com/dotnet/runtime build 20210331.6 (dotnet#31421) [release/6.0-preview3] Update dependencies from dotnet/runtime * Do not serialize Parameters property on AuthenticationProperties (dotnet#31414) * Do not serialize Parameters Explicitly prevent the Parameters dictionary from being included in the deserialized payload. See dotnet#31330 (comment). * Ignore props backed by Items Also ignore the properties backed by the Items dictionary to minimise the size of the serialized JSON payload. * Add ignoreLineEndingDifferences Stop tests from failing on non-Windows OSs due to different line endings. * ArPow stage 1: local source-build infrastructure (dotnet#31235) Conflicts: eng/Version.Details.xml Co-authored-by: John Luo <johluo@microsoft.com> * [main] Update dependencies from dotnet/runtime dotnet/efcore (dotnet#31411) [main] Update dependencies from dotnet/runtime dotnet/efcore * Update dependencies from https://github.com/dotnet/efcore build 20210331.4 (dotnet#31424) [release/6.0-preview3] Update dependencies from dotnet/efcore * Fix project path in slnf (dotnet#31431) * Fix trailing comma in Caching.slnf (dotnet#31438) * Fix file headers in src/Caching (dotnet#31439) * [SignalR Java] Update to RxJava3 (dotnet#31426) * Fixed de-duping hosting startup assemblies (dotnet#31440) - De-dupe hosting startup assemblies based on assembly instance not the name of the assembly. Names can be short or long and we don't know if they resolve to the same assembly. Instead of trying to mess with names, we just check to make sure that the instance isn't the same. * Trim down framework references for Blazor dev server (dotnet#31420) * Only include Microsoft.AspNetCore.App framework reference for Blazor dev server * Address feedback from peer review * Use SharedFxVersion property * Cross-target last few projects to DefaultNetCoreTargetFramework (dotnet#31239) * Cross-target last 2 projects to DefaultNetCoreTargetFramework * More projects * Fixup * Fixup again * Fixup * Undo SiteExtension change * Update src/SiteExtensions/LoggingBranch/LB.csproj Co-authored-by: Doug Bunting <6431421+dougbu@users.noreply.github.com> Co-authored-by: Doug Bunting <6431421+dougbu@users.noreply.github.com> * [main] Update dependencies from dotnet/runtime dotnet/efcore (dotnet#31425) [main] Update dependencies from dotnet/runtime dotnet/efcore * Use integer division trick to get exact base64 length (dotnet#31442) * Add nullability to more MVC assemblies (dotnet#31338) * Add nullability to more MVC assemblies * [x] MVC.Cors * [x] Mvc.DataAnnotations * [x] Mvc.Localization * [x] Mvc.Newtonsoft.Json * [ ] Mvc.ViewFeatures (partial) * Fixup * Update src/Mvc/Mvc.ViewFeatures/src/Rendering/ViewContext.cs * Apply suggestions from code review * Update RazorPagePropertyActivator.cs * Update assembly check on EventHandlerTagHelperDescriptorProvider (dotnet#31458) * Remove legacy routing (dotnet#31295) * [release/6.0-preview3] Update dependencies from dotnet/runtime dotnet/efcore (dotnet#31451) [release/6.0-preview3] Update dependencies from dotnet/runtime dotnet/efcore * Update dependencies from https://github.com/dotnet/arcade build 20210331.6 (dotnet#31427) [main] Update dependencies from dotnet/arcade - Merge branch 'main' into darc-main-2c400715-e553-48d8-8d43-983dc7aa4b7d * Update dependencies from https://github.com/dotnet/efcore build 20210401.3 (dotnet#31468) [main] Update dependencies from dotnet/efcore * Fix project paths in Azure.slnf (dotnet#31435) * Fix project paths in Azure.slnf * Update Azure.slnf * Update IdentityModel versions to 6.10.0 dotnet#31454 (dotnet#31482) * Removed static activity source from hosting (dotnet#31483) * Removed static activity source from hosting - Get it from DI instead * Fixed test * Use Random.Shared property (dotnet#31453) * Use Random.Shared Use the new .NET 6 Random.Shared static property where possible. See dotnet/runtime#50297. * Revert WebApi-CSharp changes For some reason I don't understand, this template doesn't see Random.Shared when compiled so this reverts the previous change for this template. * Remove baseline suppressions from 5.0 (dotnet#29934) * Remove baseline suppressions from 5.0 * Use newer NuGet.Protocol version - v4.8.2 ➡️ v5.8.1 * Fix condition * Back to 5.8.1 * Undo components changes * Whoops * Whoops Co-authored-by: Doug Bunting <6431421+dougbu@users.noreply.github.com> * Remove DNT from pre-reserved headers (dotnet#31493) No modern browser uses it anymore * Reuse HttpProtocol CTS (dotnet#31466) * Change Router _emptyParametersDictionary to a regular Dictionary (dotnet#31460) * Change Router _emptyParametersDictionary to a regular Dictionary This allows for ReadOnlyDictionary to be trimmed in a default Blazor WASM app. Saving roughly 3 KB .br compressed. Contributes to dotnet#30098 * Update src/Components/Components/src/Routing/Router.cs Co-authored-by: James Newton-King <james@newtonking.com> * Clean up some MVC code (dotnet#31511) * Clean up some MVC code * PR feedback * Do not throwing on InputBase.Dispose() if not in EditContext. (dotnet#31510) * Do not throwing on InputBase.Dispose() if not in EditContext. Fixes dotnet#30990 * Cache filters between requests in the ordinary case (dotnet#31513) In the normal case, * only the DefaultFilterFactoryProvider is registered * all filters registered by the framework are reusable We could so something targeted and cache filter instances between requests. * Update dependencies from https://github.com/dotnet/arcade build 20210403.1 (dotnet#31526) [main] Update dependencies from dotnet/arcade * Flaky tests (dotnet#31502) * Revert "Update assembly check on EventHandlerTagHelperDescriptorProvider (dotnet#31458)" (dotnet#31530) This reverts commit 7bc87ba. * Ability to deactivate DataAnnotationsValidation dynamically. Fixes dotnet#31027 (dotnet#31413) * Use UriHelper.BuildAbsolute for RedirectToHttpsRule (dotnet#28899) * Use UriHelper.BuildAbsolute and UriHelper.BuildRelative for RedirectRule (dotnet#28903) * Still send 100 Continue with null MinRequestBodyDataRate (dotnet#31543) * Update Selenium/Playwright (dotnet#31497) * Update Selenium/Playwright * Update selenium-config.json * Update Versions.props * Added VSCode debugging (for MvcSandbox) & code analysis support (dotnet#29486) * Added VSCode debugging support for MvcSandbox * Added ignored vscode folders * 1. Convered some more projects. 2. Added env variable for TargetFramework and used it in launch.json file rather than hardcoding TFW. * Addressed PR feedback. 1. Removed extensions.json 2. Updated BuildFromSource.md for Vscode instructions. 3. Added launch settings for BasicTestApp. * Addressed PR feedback! * Implement new SmallCapacityDictionary for dictionaries with a small amount of values. (dotnet#31360) * Fix duplicated event names in KestrelTrace logger. (dotnet#31523) (dotnet#31554) * Update area-owners.md (dotnet#31552) * Data Protection minor tidying (dotnet#31512) * Remove unused code Remove unused constant, method and variable. * Remove array allocations Use Array.Empty() instead of allocating an empty array. Use a static array for activation type instead of creating a new one per invocation. * Rename field Address PR feedback. * [SignalR TS] Improve connection error messages (dotnet#31402) * [MVC] Fix MSB4186 error (dotnet#31066) Fix MSB4186 error if a project references Microsoft.AspNetCore.Mvc.Testing that is not itself an ASP.NET project, such as a helper library in a test suite. * Re-use cancellation tokens in the https middleware (dotnet#31528) * Re-use cancellation tokens in the https middleware - These tokens are usually short lived and exist for the purposes of cancelling the handshake. * Fix IPNetwork.Contains behavior for prefixes which are not at start of subnet range (dotnet#31573) * Update branding to 5.0.6 (dotnet#31563) * Use skipEnabledCheck for LoggerMessage.Define (dotnet#31562) * Use skipEnabledCheck in MVC * Use skipEnabledCheck in Http/Routing DefaultLinkGenerator, DefaultLinkParser, and DfaMatcher * Use skipEnabledCheck in SignalR * Use skipEnabledCheck in Components * Use skipEnabledCheck in Hosting * Use skipEnabledCheck in Servers/HttpSys * Use skipEnabledCheck in Servers/Kestrel * Use skipEnabledCheck in Middleware * Avoid some allocations by checked IsEnabled first in MVC * Avoid some allocations by checked IsEnabled first in Servers/Kestrel * Simplify usage of logging in transports * Fix up typo in Blazor Server launchSettings.json (dotnet#31580) * Rename 'Blazor component' to 'component' to be more generic (dotnet#31590) Co-authored-by: Adrian Wright <adrian@compiledcoding.co.uk> * Update branding to 3.1.15 (dotnet#31577) * Update branding to 3.1.15 Update Ubuntu 16.04 to 18.04 * Remove obsolete groovy code * [release/5.0] Update nuget versions (dotnet#31490) * Update nuget/msbuild versions * Update nuget * Nuget only * Fix baseline, update to 5.8.1 * Undo test change * Update MetadataSerializerTest.cs * Set cab name for TargetingPack.wixproj (dotnet#30975) * Added IConnectionSocketFeature (dotnet#31588) - Removed the nullable from the Socket property as approved in API review - Make the IConnectionSocketFeature an additional feature instead of one implemented on the TransportConnection. - Added a test to verify it works * Fix null ref in SyntaxTokenCache (dotnet#30978) (dotnet#30988) Fixes dotnet#27154 * Still send 100 Continue with null MinRequestBodyDataRate (dotnet#31568) * [SignalR TS] Fix permanent Disconnecting state (dotnet#30948) (dotnet#31253) * Fix arguments order for call of HeartbeatSlow (dotnet#28698) (dotnet#31080) Co-authored-by: Roman Marusyk <Marusyk@users.noreply.github.com> * Quarantine one failing test (dotnet#31045) (dotnet#31296) - dotnet#31044 - `RazorPagesTemplate_RazorRuntimeCompilation_BuildsAndPublishes()` Co-authored-by: Doug Bunting <6431421+dougbu@users.noreply.github.com> * Fix merge * Fix merge * Update HubConnection.Reconnect.test.ts * Update default-build.yml * Error boundaries (dotnet#30874) * Remove unused ADAL dependency (dotnet#31484) * Remove unused dependency * Remove outdated AAD sample * Custom event args: support receiving IJSObjectReference (dotnet#31591) * Add failing E2E case * Implement fix * Add E2E test * Update src/Components/test/testassets/BasicTestApp/EventCustomArgsComponent.razor * Update suppressions * [SignalR TS] Set keep alive timer in receive loop (dotnet#31300) * Unskip some fixed E2E tests (dotnet#31614) * Fix "no event handler" in simultaneous blur+removal case (dotnet#31612) * [SPA] Introduces new approach for proxying the SPA templates (dotnet#31564) * A new package Microsoft.AspNetCore.SpaProxy has been added that is used by the templates to launch their development proxy via npm/yarn. * The SPA development proxy for each CLI now is the frontend for the application and proxies the requests to the backend which is the ASP.NET Core application. * At publish time the application assets are copied to the wwwroot. * SpaServices.Extensions has been removed from the templates since it is no longer needed. MapFallbackToFile("index.html") handles unknown requests and serves the SPA entry point. * The templates have been updated to keep using HTTPS with the SPA proxy configured to use the ASP.NET Core HTTPS development certificate via a new aspnetcore-https.js file that ships within the template. * The configuration for angular has been updated with a proxy.conf.js file to proxy requests to the backend. * The entry point for the application in development is now https://localhost:5002 when using https and http://localhost:5002 otherwise. * Infer default sources for parameters of minimal actions (dotnet#31603) This does a big chunk of dotnet#30248 while heavily refactoring the RequestDelegateFactory by splitting it out into a bunch of smaller methods. For part 2 of dotnet#30248, a "scalar value type that lives in the System namespace", I went with the alternative of "Something convention-based like the presence of a bool TryParse(string, out T) method" instead. This conventions work for types in any namespace including user-defined types. * Avoid closure caused by local function (dotnet#31641) * Avoid closure caused by local function - Made the local function static and passed state via parameters. * Remove form support from minimal APIs (dotnet#31646) * Remove form support from minimal APIs * Add * MapActionSample -> MinimalSample * Remove MapActionSample.csproj from Mvc.slnf * [Templates] Update the react template to use the CLI proxy (dotnet#31652) Updates the react template to use the http-proxy-middleware for handling the requests instead of the asp.net core proxy in the same way it's done for the Angular template. * [SignalR] Allocate HubCallerClients once per connection (dotnet#31661) * [main] Update dependencies from dotnet/emsdk dotnet/efcore dotnet/runtime (dotnet#31576) [main] Update dependencies from dotnet/emsdk dotnet/efcore dotnet/runtime - Add `RemoveDevicePlatformSupport` To `Microsoft.AspNetCore.Authentication.Negotiate.csproj` Co-authored-by: dotnet-maestro[bot] <42748379+dotnet-maestro[bot]@users.noreply.github.com> Co-authored-by: Andre Milbradt <andremi@microsoft.com> Co-authored-by: Andre Milbradt <onegoodsausage@users.noreply.github.com> Co-authored-by: Pranav K <prkrishn@hotmail.com> Co-authored-by: Hao Kung <HaoK@users.noreply.github.com> Co-authored-by: David Fowler <davidfowl@gmail.com> Co-authored-by: Safia Abdalla <safia@microsoft.com> Co-authored-by: Kristian Hellang <kristian@hellang.com> Co-authored-by: msftbot[bot] <48340428+msftbot[bot]@users.noreply.github.com> Co-authored-by: James Newton-King <james@newtonking.com> Co-authored-by: Chris Ross <Tratcher@Outlook.com> Co-authored-by: Steve Sanderson <SteveSandersonMS@users.noreply.github.com> Co-authored-by: Kevin Pilch <kevinpi@microsoft.com> Co-authored-by: Javier Calvarro Nelson <jacalvar@microsoft.com> Co-authored-by: Doug Bunting <6431421+dougbu@users.noreply.github.com> Co-authored-by: N. Taylor Mullen <nimullen@microsoft.com> Co-authored-by: Eilon Lipton <Eilon@users.noreply.github.com> Co-authored-by: Brennan <brecon@microsoft.com> Co-authored-by: Shreyas Jejurkar <shreyasjejurkar123@live.com> Co-authored-by: Justin Kotalik <jukotali@microsoft.com> Co-authored-by: Gabriel Lucaci <gabriel.lucaci.dev@gmail.com> Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com> Co-authored-by: Tratcher <Tratcher@users.noreply.github.com> Co-authored-by: John Luo <johluo@microsoft.com> Co-authored-by: Martin Costello <martin@martincostello.com> Co-authored-by: William Godbe <wigodbe@microsoft.com> Co-authored-by: dotnet-maestro[bot] <dotnet-maestro[bot]@users.noreply.github.com> Co-authored-by: Allison Chou <allichou@microsoft.com> Co-authored-by: Anthony J <reapsprgm@gmail.com> Co-authored-by: Jonathan Berube <jdberube@gmail.com> Co-authored-by: dotnet <dotnet@users.noreply.github.com> Co-authored-by: Günther Foidl <gue@korporal.at> Co-authored-by: Stephen Toub <stoub@microsoft.com> Co-authored-by: Ben Adams <thundercat@illyriad.co.uk> Co-authored-by: Andrzej <andrzej.pindor@gmail.com> Co-authored-by: Stephen Halter <halter73@gmail.com> Co-authored-by: Kevin Jones <vcsjones@github.com> Co-authored-by: Marek Linka <mareklinka@users.noreply.github.com> Co-authored-by: Kevin Miller <scoundrel@gmail.com> Co-authored-by: Michael Simons <msimons@microsoft.com> Co-authored-by: Youssef Victor <youssefvictor00@gmail.com> Co-authored-by: Eric Erhardt <eric.erhardt@microsoft.com> Co-authored-by: fvoronin <fvoronin@gmail.com> Co-authored-by: Paulo Morgado <470455+paulomorgado@users.noreply.github.com> Co-authored-by: Tanay Parikh <TanayParikh@users.noreply.github.com> Co-authored-by: Adrian Wright <47532258+adrianwright109@users.noreply.github.com> Co-authored-by: Adrian Wright <adrian@compiledcoding.co.uk> Co-authored-by: Sébastien Ros <sebastienros@gmail.com> Co-authored-by: Roman Marusyk <Marusyk@users.noreply.github.com>

ghost added the area-blazor Includes: Blazor, Razor Components label Mar 12, 2021

pranavkm requested a review from a team March 12, 2021 17:51

SteveSandersonMS reviewed Mar 12, 2021

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SteveSandersonMS reviewed Mar 12, 2021

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captainsafia reviewed Mar 12, 2021

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SteveSandersonMS reviewed Mar 12, 2021

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pranavkm added 3 commits March 15, 2021 21:18

Add API to Renderer to trigger a UI refresh on hot reload

55e88af

Changes per PR comments

7311d25

Fixup

eec977a

pranavkm force-pushed the prkrishn/hot-reload-renderer branch 2 times, most recently from eee7f62 to 74c3e04 Compare March 16, 2021 06:06

Add a E2E test

89b9b4b

pranavkm force-pushed the prkrishn/hot-reload-renderer branch from 74c3e04 to 89b9b4b Compare March 16, 2021 06:10

pranavkm commented Mar 16, 2021

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