Make FromRequest default to use axum::body::Body
#146
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Most users will implement `FromRequest<axum::body::Body>` so making that the default makes things a bit easier to use.
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davidpdrsn
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Aug 23, 2021
- Overall:
- **fixed:** Overall compile time improvements. If you're having issues with compile time
please file an issue! ([#184](#184)) ([#198](#198)) ([#220](#220))
- **changed:** Remove `prelude`. Explicit imports are now required ([#195](#195))
- Routing:
- **added:** Add dedicated `Router` to replace the `RoutingDsl` trait ([#214](#214))
- **added:** Add `Router::or` for combining routes ([#108](#108))
- **fixed:** Support matching different HTTP methods for the same route that aren't defined
together. So `Router::new().route("/", get(...)).route("/", post(...))` now
accepts both `GET` and `POST`. Previously only `POST` would be accepted ([#224](#224))
- **fixed:** `get` routes will now also be called for `HEAD` requests but will always have
the response body removed ([#129](#129))
- **changed:** Replace `axum::route(...)` with `axum::Router::new().route(...)`. This means
there is now only one way to create a new router. Same goes for
`axum::routing::nest`. ([#215](#215))
- **changed:** Implement `routing::MethodFilter` via [`bitflags`](https://crates.io/crates/bitflags) ([#158](#158))
- **changed:** Move `handle_error` from `ServiceExt` to `service::OnMethod` ([#160](#160))
With these changes this app using 0.1:
```rust
use axum::{extract::Extension, prelude::*, routing::BoxRoute, AddExtensionLayer};
let app = route("/", get(|| async { "hi" }))
.nest("/api", api_routes())
.layer(AddExtensionLayer::new(state));
fn api_routes() -> BoxRoute<Body> {
route(
"/users",
post(|Extension(state): Extension<State>| async { "hi from nested" }),
)
.boxed()
}
```
Becomes this in 0.2:
```rust
use axum::{
extract::Extension,
handler::{get, post},
routing::BoxRoute,
Router,
};
let app = Router::new()
.route("/", get(|| async { "hi" }))
.nest("/api", api_routes());
fn api_routes() -> Router<BoxRoute> {
Router::new()
.route(
"/users",
post(|Extension(state): Extension<State>| async { "hi from nested" }),
)
.boxed()
}
```
- Extractors:
- **added:** Make `FromRequest` default to being generic over `body::Body` ([#146](#146))
- **added:** Implement `std::error::Error` for all rejections ([#153](#153))
- **added:** Add `OriginalUri` for extracting original request URI in nested services ([#197](#197))
- **added:** Implement `FromRequest` for `http::Extensions` ([#169](#169))
- **added:** Make `RequestParts::{new, try_into_request}` public so extractors can be used outside axum ([#194](#194))
- **added:** Implement `FromRequest` for `axum::body::Body` ([#241](#241))
- **changed:** Removed `extract::UrlParams` and `extract::UrlParamsMap`. Use `extract::Path` instead ([#154](#154))
- **changed:** `extractor_middleware` now requires `RequestBody: Default` ([#167](#167))
- **changed:** Convert `RequestAlreadyExtracted` to an enum with each possible error variant ([#167](#167))
- **changed:** `extract::BodyStream` is no longer generic over the request body ([#234](#234))
- **changed:** `extract::Body` has been renamed to `extract::RawBody` to avoid conflicting with `body::Body` ([#233](#233))
- **changed:** `RequestParts` changes ([#153](#153))
- `method` new returns an `&http::Method`
- `method_mut` new returns an `&mut http::Method`
- `take_method` has been removed
- `uri` new returns an `&http::Uri`
- `uri_mut` new returns an `&mut http::Uri`
- `take_uri` has been removed
- **changed:** Remove several rejection types that were no longer used ([#153](#153)) ([#154](#154))
- Responses:
- **added:** Add `Headers` for easily customizing headers on a response ([#193](#193))
- **added:** Add `Redirect` response ([#192](#192))
- **added:** Add `body::StreamBody` for easily responding with a stream of byte chunks ([#237](#237))
- **changed:** Add associated `Body` and `BodyError` types to `IntoResponse`. This is
required for returning responses with bodies other than `hyper::Body` from
handlers. See the docs for advice on how to implement `IntoResponse` ([#86](#86))
- **changed:** `tower::util::Either` no longer implements `IntoResponse` ([#229](#229))
This `IntoResponse` from 0.1:
```rust
use axum::{http::Response, prelude::*, response::IntoResponse};
struct MyResponse;
impl IntoResponse for MyResponse {
fn into_response(self) -> Response<Body> {
Response::new(Body::empty())
}
}
```
Becomes this in 0.2:
```rust
use axum::{body::Body, http::Response, response::IntoResponse};
struct MyResponse;
impl IntoResponse for MyResponse {
type Body = Body;
type BodyError = <Self::Body as axum::body::HttpBody>::Error;
fn into_response(self) -> Response<Self::Body> {
Response::new(Body::empty())
}
}
```
- SSE:
- **added:** Add `response::sse::Sse`. This implements SSE using a response rather than a service ([#98](#98))
- **changed:** Remove `axum::sse`. Its been replaced by `axum::response::sse` ([#98](#98))
Handler using SSE in 0.1:
```rust
use axum::{
prelude::*,
sse::{sse, Event},
};
use std::convert::Infallible;
let app = route(
"/",
sse(|| async {
let stream = futures::stream::iter(vec![Ok::<_, Infallible>(
Event::default().data("hi there!"),
)]);
Ok::<_, Infallible>(stream)
}),
);
```
Becomes this in 0.2:
```rust
use axum::{
handler::get,
response::sse::{Event, Sse},
Router,
};
use std::convert::Infallible;
let app = Router::new().route(
"/",
get(|| async {
let stream = futures::stream::iter(vec![Ok::<_, Infallible>(
Event::default().data("hi there!"),
)]);
Sse::new(stream)
}),
);
```
- WebSockets:
- **changed:** Change WebSocket API to use an extractor plus a response ([#121](#121))
- **changed:** Make WebSocket `Message` an enum ([#116](#116))
- **changed:** `WebSocket` now uses `Error` as its error type ([#150](#150))
Handler using WebSockets in 0.1:
```rust
use axum::{
prelude::*,
ws::{ws, WebSocket},
};
let app = route(
"/",
ws(|socket: WebSocket| async move {
// do stuff with socket
}),
);
```
Becomes this in 0.2:
```rust
use axum::{
extract::ws::{WebSocket, WebSocketUpgrade},
handler::get,
Router,
};
let app = Router::new().route(
"/",
get(|ws: WebSocketUpgrade| async move {
ws.on_upgrade(|socket: WebSocket| async move {
// do stuff with socket
})
}),
);
```
- Misc
- **added:** Add default feature `tower-log` which exposes `tower`'s `log` feature. ([#218](#218))
- **changed:** Replace `body::BoxStdError` with `axum::Error`, which supports downcasting ([#150](#150))
- **changed:** `EmptyRouter` now requires the response body to implement `Send + Sync + 'static'` ([#108](#108))
- **changed:** `Router::check_infallible` now returns a `CheckInfallible` service. This
is to improve compile times ([#198](#198))
- **changed:** `Router::into_make_service` now returns `routing::IntoMakeService` rather than
`tower::make::Shared` ([#229](#229))
- **changed:** All usage of `tower::BoxError` has been replaced with `axum::BoxError` ([#229](#229))
- **changed:** Several response future types have been moved into dedicated
`future` modules ([#133](#133))
- **changed:** `EmptyRouter`, `ExtractorMiddleware`, `ExtractorMiddlewareLayer`,
and `QueryStringMissing` no longer implement `Copy` ([#132](#132))
- **changed:** `service::OnMethod`, `handler::OnMethod`, and `routing::Nested` have new response future types ([#157](#157))
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Most users will implement
FromRequest<axum::body::Body>so making thatthe default makes things a bit easier to use.