update guide

guide/src/qs_5.md

@@ -327,8 +327,8 @@ List of `FromParam` implementations can be found in
 
 Actix provides functionality for type safe request path information extraction.
 It uses *serde* package as a deserialization library.
-[HttpRequest::extract_path()](../actix_web/struct.HttpRequest.html#method.extract_path)
- extracts information, the destination type has to implement *serde's *`Deserialize` trait.
+[Path](../actix_web/struct.Path.html) extracts information, the destination type
+has to implement *serde's *`Deserialize` trait.
 
 ```rust
 # extern crate bytes;
@@ -342,20 +342,20 @@ struct Info {
     username: String,
 }
 
-fn index(mut req: HttpRequest) -> Result<String> {
-    let info: Info = req.extract_path()?;      // <- extract path info using serde
+// extract path info using serde
+fn index(info: Path<Info>) -> Result<String> {
     Ok(format!("Welcome {}!", info.username))
 }
 
 fn main() {
     let app = Application::new()
         .resource("/{username}/index.html",    // <- define path parameters
-                  |r| r.method(Method::GET).f(index));
+                  |r| r.method(Method::GET).with(index));
 }
 ```
 
-[HttpRequest::extract_query()](../actix_web/struct.HttpRequest.html#method.extract_query)
- provides similar functionality for request query parameters.
+[Query](../actix_web/struct.Query.html) provides similar functionality for
+request query parameters.
 
 
 ## Generating resource URLs

guide/src/qs_8.md

@@ -130,7 +130,7 @@ impl Actor for Ws {
     type Context = ws::WebsocketContext<Self>;
 }
 
-impl StreamHandler<ws::Message, ws::WsError> for Ws {
+impl StreamHandler<ws::Message, ws::ProtocolError> for Ws {
 
     fn handle(&mut self, msg: ws::Message, ctx: &mut Self::Context) {
         match msg {

src/extractor.rs

@@ -91,7 +91,7 @@ impl<T, S> Path<T, S> {
         &self.req
     }
 
-    /// Deconstruct instance into a parts
+    /// Deconstruct instance into parts
     pub fn into(self) -> (T, HttpRequest<S>) {
         (self.item, self.req)
     }
@@ -179,7 +179,7 @@ impl<T, S> Query<T, S> {
         &self.req
     }
 
-    /// Deconstruct instance into a parts
+    /// Deconstruct instance into parts
     pub fn into(self) -> (T, HttpRequest<S>) {
         (self.item, self.req)
     }