allow to use fn with multiple arguments with .with()/.with_async()

CHANGES.md

@@ -1,6 +1,6 @@
 # Changes
 
-## [0.7.4] - 2018-08-xx
+## [0.8.0] - 2018-08-xx
 
 ### Added
 
@@ -12,6 +12,8 @@
 
 ### Changed
 
+* It is allowed to use function with up to 10 parameters for handler with `extractor parameters`.
+
 * native-tls - 0.2
 
 * `Content-Disposition` is re-worked. Its parser is now more robust and handles quoted content better. See #461

MIGRATION.md

@@ -1,3 +1,9 @@
+## 0.8
+
+* `Route::with_config()`/`Route::with_async_config()` always passes configuration objects as tuple
+  even for handler with one parameter.
+
+
 ## 0.7
 
 * `HttpRequest` does not implement `Stream` anymore. If you need to read request payload

src/application.rs

@@ -12,6 +12,7 @@ use resource::Resource;
 use router::{ResourceDef, Router};
 use scope::Scope;
 use server::{HttpHandler, HttpHandlerTask, IntoHttpHandler, Request};
+use with::WithFactory;
 
 /// Application
 pub struct HttpApplication<S = ()> {
@@ -249,7 +250,7 @@ where
     /// ```
     pub fn route<T, F, R>(mut self, path: &str, method: Method, f: F) -> App<S>
     where
-        F: Fn(T) -> R + 'static,
+        F: WithFactory<T, S, R>,
         R: Responder + 'static,
         T: FromRequest<S> + 'static,
     {

src/extractor.rs

@@ -332,7 +332,7 @@ impl<T: fmt::Display> fmt::Display for Form<T> {
 ///         |r| {
 ///             r.method(http::Method::GET)
 ///                 // register form handler and change form extractor configuration
-///                 .with_config(index, |cfg| {cfg.limit(4096);})
+///                 .with_config(index, |cfg| {cfg.0.limit(4096);})
 ///         },
 ///     );
 /// }
@@ -427,7 +427,7 @@ impl<S: 'static> FromRequest<S> for Bytes {
 ///     let app = App::new().resource("/index.html", |r| {
 ///         r.method(http::Method::GET)
 ///                .with_config(index, |cfg| { // <- register handler with extractor params
-///                   cfg.limit(4096);  // <- limit size of the payload
+///                   cfg.0.limit(4096);  // <- limit size of the payload
 ///                 })
 ///     });
 /// }

src/json.rs

@@ -172,7 +172,7 @@ where
 ///     let app = App::new().resource("/index.html", |r| {
 ///         r.method(http::Method::POST)
 ///               .with_config(index, |cfg| {
-///                   cfg.limit(4096)   // <- change json extractor configuration
+///                   cfg.0.limit(4096)   // <- change json extractor configuration
 ///                      .error_handler(|err, req| {  // <- create custom error response
 ///                          error::InternalError::from_response(
 ///                              err, HttpResponse::Conflict().finish()).into()

src/resource.rs

@@ -13,6 +13,7 @@ use middleware::Middleware;
 use pred;
 use route::Route;
 use router::ResourceDef;
+use with::WithFactory;
 
 #[derive(Copy, Clone)]
 pub(crate) struct RouteId(usize);
@@ -217,7 +218,7 @@ impl<S: 'static> Resource<S> {
     /// ```
     pub fn with<T, F, R>(&mut self, handler: F)
     where
-        F: Fn(T) -> R + 'static,
+        F: WithFactory<T, S, R>,
         R: Responder + 'static,
         T: FromRequest<S> + 'static,
     {

src/route.rs

@@ -16,7 +16,7 @@ use middleware::{
     Started as MiddlewareStarted,
 };
 use pred::Predicate;
-use with::{With, WithAsync};
+use with::{WithAsyncFactory, WithFactory};
 
 /// Resource route definition
 ///
@@ -166,15 +166,15 @@ impl<S: 'static> Route<S> {
     /// ```
     pub fn with<T, F, R>(&mut self, handler: F)
     where
-        F: Fn(T) -> R + 'static,
+        F: WithFactory<T, S, R> + 'static,
         R: Responder + 'static,
         T: FromRequest<S> + 'static,
     {
-        self.h(With::new(handler, <T::Config as Default>::default()));
+        self.h(handler.create());
     }
 
     /// Set handler function. Same as `.with()` but it allows to configure
-    /// extractor.
+    /// extractor. Configuration closure accepts config objects as tuple.
     ///
     /// ```rust
     /// # extern crate bytes;
@@ -192,21 +192,21 @@ impl<S: 'static> Route<S> {
     ///     let app = App::new().resource("/index.html", |r| {
     ///         r.method(http::Method::GET)
     ///                .with_config(index, |cfg| { // <- register handler
-    ///                   cfg.limit(4096);  // <- limit size of the payload
+    ///                   cfg.0.limit(4096);  // <- limit size of the payload
     ///                 })
     ///     });
     /// }
     /// ```
     pub fn with_config<T, F, R, C>(&mut self, handler: F, cfg_f: C)
     where
-        F: Fn(T) -> R + 'static,
+        F: WithFactory<T, S, R>,
         R: Responder + 'static,
         T: FromRequest<S> + 'static,
         C: FnOnce(&mut T::Config),
     {
         let mut cfg = <T::Config as Default>::default();
         cfg_f(&mut cfg);
-        self.h(With::new(handler, cfg));
+        self.h(handler.create_with_config(cfg));
     }
 
     /// Set async handler function, use request extractor for parameters.
@@ -240,17 +240,18 @@ impl<S: 'static> Route<S> {
     /// ```
     pub fn with_async<T, F, R, I, E>(&mut self, handler: F)
     where
-        F: Fn(T) -> R + 'static,
+        F: WithAsyncFactory<T, S, R, I, E>,
         R: Future<Item = I, Error = E> + 'static,
         I: Responder + 'static,
         E: Into<Error> + 'static,
         T: FromRequest<S> + 'static,
     {
-        self.h(WithAsync::new(handler, <T::Config as Default>::default()));
+        self.h(handler.create());
     }
 
     /// Set async handler function, use request extractor for parameters.
-    /// This method allows to configure extractor.
+    /// This method allows to configure extractor. Configuration closure
+    /// accepts config objects as tuple.
     ///
     /// ```rust
     /// # extern crate bytes;
@@ -275,14 +276,14 @@ impl<S: 'static> Route<S> {
     ///         "/{username}/index.html", // <- define path parameters
     ///         |r| r.method(http::Method::GET)
     ///            .with_async_config(index, |cfg| {
-    ///                cfg.limit(4096);
+    ///                cfg.0.limit(4096);
     ///            }),
     ///     ); // <- use `with` extractor
     /// }
     /// ```
     pub fn with_async_config<T, F, R, I, E, C>(&mut self, handler: F, cfg: C)
     where
-        F: Fn(T) -> R + 'static,
+        F: WithAsyncFactory<T, S, R, I, E>,
         R: Future<Item = I, Error = E> + 'static,
         I: Responder + 'static,
         E: Into<Error> + 'static,
@@ -291,7 +292,7 @@ impl<S: 'static> Route<S> {
     {
         let mut extractor_cfg = <T::Config as Default>::default();
         cfg(&mut extractor_cfg);
-        self.h(WithAsync::new(handler, extractor_cfg));
+        self.h(handler.create_with_config(extractor_cfg));
     }
 }
 

src/router.rs

@@ -17,6 +17,7 @@ use pred::Predicate;
 use resource::{DefaultResource, Resource};
 use scope::Scope;
 use server::Request;
+use with::WithFactory;
 
 #[derive(Debug, Copy, Clone, PartialEq)]
 pub(crate) enum ResourceId {
@@ -398,7 +399,7 @@ impl<S: 'static> Router<S> {
 
     pub(crate) fn register_route<T, F, R>(&mut self, path: &str, method: Method, f: F)
     where
-        F: Fn(T) -> R + 'static,
+        F: WithFactory<T, S, R>,
         R: Responder + 'static,
         T: FromRequest<S> + 'static,
     {

src/scope.rs

@@ -17,6 +17,7 @@ use pred::Predicate;
 use resource::{DefaultResource, Resource};
 use router::{ResourceDef, Router};
 use server::Request;
+use with::WithFactory;
 
 /// Resources scope
 ///
@@ -222,7 +223,7 @@ impl<S: 'static> Scope<S> {
     /// ```
     pub fn route<T, F, R>(mut self, path: &str, method: Method, f: F) -> Scope<S>
     where
-        F: Fn(T) -> R + 'static,
+        F: WithFactory<T, S, R>,
         R: Responder + 'static,
         T: FromRequest<S> + 'static,
     {