New method router (#521)

* Empty crate

* basic setup

* Support `HEAD`

* Add remaining methods

* Impl Debug

* Add `MethodRouter::merge`

* WIP

* Support same route with different methods in different calls

* Update changelog

* Bring back `any` and `any_service`

* Address review feedback

examples/sse/src/main.rs

@@ -5,11 +5,10 @@
 //! ```
 
 use axum::{
-    error_handling::HandleErrorExt,
     extract::TypedHeader,
     http::StatusCode,
     response::sse::{Event, Sse},
-    routing::{get, service_method_routing as service},
+    routing::{get, get_service},
     Router,
 };
 use futures::stream::{self, Stream};
@@ -26,7 +25,7 @@ async fn main() {
     tracing_subscriber::fmt::init();
 
     let static_files_service =
-        service::get(ServeDir::new("examples/sse/assets").append_index_html_on_directories(true))
+        get_service(ServeDir::new("examples/sse/assets").append_index_html_on_directories(true))
             .handle_error(|error: std::io::Error| {
                 (
                     StatusCode::INTERNAL_SERVER_ERROR,

examples/static-file-server/src/main.rs

@@ -4,10 +4,7 @@
 //! cargo run -p example-static-file-server
 //! ```
 
-use axum::{
-    error_handling::HandleErrorExt, http::StatusCode, routing::service_method_routing as service,
-    Router,
-};
+use axum::{http::StatusCode, routing::get_service, Router};
 use std::net::SocketAddr;
 use tower_http::{services::ServeDir, trace::TraceLayer};
 
@@ -25,7 +22,7 @@ async fn main() {
     let app = Router::new()
         .nest(
             "/static",
-            service::get(ServeDir::new(".")).handle_error(|error: std::io::Error| {
+            get_service(ServeDir::new(".")).handle_error(|error: std::io::Error| {
                 (
                     StatusCode::INTERNAL_SERVER_ERROR,
                     format!("Unhandled internal error: {}", error),

examples/websockets/src/main.rs

@@ -7,14 +7,13 @@
 //! ```
 
 use axum::{
-    error_handling::HandleErrorExt,
     extract::{
         ws::{Message, WebSocket, WebSocketUpgrade},
         TypedHeader,
     },
     http::StatusCode,
     response::IntoResponse,
-    routing::{get, service_method_routing as service},
+    routing::{get, get_service},
     Router,
 };
 use std::net::SocketAddr;
@@ -34,7 +33,7 @@ async fn main() {
     // build our application with some routes
     let app = Router::new()
         .fallback(
-            service::get(
+            get_service(
                 ServeDir::new("examples/websockets/assets").append_index_html_on_directories(true),
             )
             .handle_error(|error: std::io::Error| {