prepare releases

actix-http/Cargo.toml

@@ -66,7 +66,7 @@ hashbrown = "0.5.0"
 h2 = "0.1.16"
 http = "0.1.17"
 httparse = "1.3"
-indexmap = "1.0"
+indexmap = "1.2"
 lazy_static = "1.0"
 language-tags = "0.2"
 log = "0.4"

actix-http/src/client/h1proto.rs

@@ -8,10 +8,10 @@ use futures::{Async, Future, Poll, Sink, Stream};
 
 use crate::error::PayloadError;
 use crate::h1;
+use crate::header::HeaderMap;
 use crate::http::header::{IntoHeaderValue, HOST};
 use crate::message::{RequestHeadType, ResponseHead};
 use crate::payload::{Payload, PayloadStream};
-use crate::header::HeaderMap;
 
 use super::connection::{ConnectionLifetime, ConnectionType, IoConnection};
 use super::error::{ConnectError, SendRequestError};
@@ -30,7 +30,9 @@ where
     B: MessageBody,
 {
     // set request host header
-    if !head.as_ref().headers.contains_key(HOST) && !head.extra_headers().iter().any(|h| h.contains_key(HOST)) {
+    if !head.as_ref().headers.contains_key(HOST)
+        && !head.extra_headers().iter().any(|h| h.contains_key(HOST))
+    {
         if let Some(host) = head.as_ref().uri.host() {
             let mut wrt = BytesMut::with_capacity(host.len() + 5).writer();
 
@@ -40,20 +42,16 @@ where
             };
 
             match wrt.get_mut().take().freeze().try_into() {
-                Ok(value) => {
-                    match head {
+                Ok(value) => match head {
                     RequestHeadType::Owned(ref mut head) => {
                         head.headers.insert(HOST, value)
-                        },
+                    }
                     RequestHeadType::Rc(_, ref mut extra_headers) => {
                         let headers = extra_headers.get_or_insert(HeaderMap::new());
                         headers.insert(HOST, value)
+                    }
                 },
-                    }
-                }
-                Err(e) => {
-                    log::error!("Can not set HOST header {}", e)
-                }
+                Err(e) => log::error!("Can not set HOST header {}", e),
             }
         }
     }

actix-http/src/client/h2proto.rs

@@ -9,9 +9,9 @@ use http::header::{HeaderValue, CONNECTION, CONTENT_LENGTH, TRANSFER_ENCODING};
 use http::{request::Request, HttpTryFrom, Method, Version};
 
 use crate::body::{BodySize, MessageBody};
+use crate::header::HeaderMap;
 use crate::message::{RequestHeadType, ResponseHead};
 use crate::payload::Payload;
-use crate::header::HeaderMap;
 
 use super::connection::{ConnectionType, IoConnection};
 use super::error::SendRequestError;
@@ -69,15 +69,21 @@ where
 
             // Extracting extra headers from RequestHeadType. HeaderMap::new() does not allocate.
             let (head, extra_headers) = match head {
-                RequestHeadType::Owned(head) => (RequestHeadType::Owned(head), HeaderMap::new()),
-                RequestHeadType::Rc(head, extra_headers) => (RequestHeadType::Rc(head, None), extra_headers.unwrap_or(HeaderMap::new())),
+                RequestHeadType::Owned(head) => {
+                    (RequestHeadType::Owned(head), HeaderMap::new())
+                }
+                RequestHeadType::Rc(head, extra_headers) => (
+                    RequestHeadType::Rc(head, None),
+                    extra_headers.unwrap_or_else(HeaderMap::new),
+                ),
             };
 
             // merging headers from head and extra headers.
-            let headers = head.as_ref().headers.iter()
-                .filter(|(name, _)| {
-                    !extra_headers.contains_key(*name)
-                })
+            let headers = head
+                .as_ref()
+                .headers
+                .iter()
+                .filter(|(name, _)| !extra_headers.contains_key(*name))
                 .chain(extra_headers.iter());
 
             // copy headers

actix-http/src/client/mod.rs

@@ -10,7 +10,7 @@ mod pool;
 
 pub use self::connection::Connection;
 pub use self::connector::Connector;
-pub use self::error::{ConnectError, InvalidUrl, SendRequestError, FreezeRequestError};
+pub use self::error::{ConnectError, FreezeRequestError, InvalidUrl, SendRequestError};
 pub use self::pool::Protocol;
 
 #[derive(Clone)]

actix-http/src/client/pool.rs

@@ -326,7 +326,7 @@ impl<Io> Inner<Io> {
 
     fn release_waiter(&mut self, key: &Key, token: usize) {
         self.waiters.remove(token);
-        self.waiters_queue.remove(&(key.clone(), token));
+        let _ = self.waiters_queue.shift_remove(&(key.clone(), token));
     }
 }
 

actix-http/src/h1/client.rs

@@ -16,9 +16,11 @@ use super::{Message, MessageType};
 use crate::body::BodySize;
 use crate::config::ServiceConfig;
 use crate::error::{ParseError, PayloadError};
-use crate::helpers;
-use crate::message::{ConnectionType, Head, MessagePool, RequestHead, RequestHeadType, ResponseHead};
 use crate::header::HeaderMap;
+use crate::helpers;
+use crate::message::{
+    ConnectionType, Head, MessagePool, RequestHead, RequestHeadType, ResponseHead,
+};
 
 bitflags! {
     struct Flags: u8 {
@@ -197,7 +199,9 @@ impl Encoder for ClientCodec {
             Message::Item((mut head, length)) => {
                 let inner = &mut self.inner;
                 inner.version = head.as_ref().version;
-                inner.flags.set(Flags::HEAD, head.as_ref().method == Method::HEAD);
+                inner
+                    .flags
+                    .set(Flags::HEAD, head.as_ref().method == Method::HEAD);
 
                 // connection status
                 inner.ctype = match head.as_ref().connection_type() {

actix-http/src/h1/encoder.rs

@@ -2,9 +2,9 @@
 use std::fmt::Write as FmtWrite;
 use std::io::Write;
 use std::marker::PhantomData;
+use std::rc::Rc;
 use std::str::FromStr;
 use std::{cmp, fmt, io, mem};
-use std::rc::Rc;
 
 use bytes::{BufMut, Bytes, BytesMut};
 
@@ -16,7 +16,7 @@ use crate::http::header::{
     HeaderValue, ACCEPT_ENCODING, CONNECTION, CONTENT_LENGTH, DATE, TRANSFER_ENCODING,
 };
 use crate::http::{HeaderMap, Method, StatusCode, Version};
-use crate::message::{ConnectionType, Head, RequestHead, ResponseHead, RequestHeadType};
+use crate::message::{ConnectionType, Head, RequestHead, RequestHeadType, ResponseHead};
 use crate::request::Request;
 use crate::response::Response;
 
@@ -134,10 +134,11 @@ pub(crate) trait MessageType: Sized {
         // merging headers from head and extra headers. HeaderMap::new() does not allocate.
         let empty_headers = HeaderMap::new();
         let extra_headers = self.extra_headers().unwrap_or(&empty_headers);
-        let headers = self.headers().inner.iter()
-            .filter(|(name, _)| {
-                !extra_headers.contains_key(*name)
-            })
+        let headers = self
+            .headers()
+            .inner
+            .iter()
+            .filter(|(name, _)| !extra_headers.contains_key(*name))
             .chain(extra_headers.inner.iter());
 
         // write headers
@@ -604,10 +605,16 @@ mod tests {
         let mut bytes = BytesMut::with_capacity(2048);
 
         let mut head = RequestHead::default();
-        head.headers.insert(AUTHORIZATION, HeaderValue::from_static("some authorization"));
+        head.headers.insert(
+            AUTHORIZATION,
+            HeaderValue::from_static("some authorization"),
+        );
 
         let mut extra_headers = HeaderMap::new();
-        extra_headers.insert(AUTHORIZATION,HeaderValue::from_static("another authorization"));
+        extra_headers.insert(
+            AUTHORIZATION,
+            HeaderValue::from_static("another authorization"),
+        );
         extra_headers.insert(DATE, HeaderValue::from_static("date"));
 
         let mut head = RequestHeadType::Rc(Rc::new(head), Some(extra_headers));

actix-multipart/CHANGES.md

@@ -1,5 +1,6 @@
 # Changes
-## [0.1.4] - 2019-xx-xx
+
+## [0.1.4] - 2019-09-12
 
 * Multipart handling now parses requests which do not end in CRLF #1038
 

actix-multipart/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "actix-multipart"
-version = "0.1.3"
+version = "0.1.4"
 authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
 description = "Multipart support for actix web framework."
 readme = "README.md"

actix-multipart/src/server.rs

@@ -178,13 +178,15 @@ impl InnerMultipart {
             Some(chunk) => {
                 if chunk.len() < boundary.len() + 4
                     || &chunk[..2] != b"--"
-                    || &chunk[2..boundary.len() + 2] != boundary.as_bytes() {
+                    || &chunk[2..boundary.len() + 2] != boundary.as_bytes()
+                {
                     Err(MultipartError::Boundary)
                 } else if &chunk[boundary.len() + 2..] == b"\r\n" {
                     Ok(Some(false))
                 } else if &chunk[boundary.len() + 2..boundary.len() + 4] == b"--"
                     && (chunk.len() == boundary.len() + 4
-                        || &chunk[boundary.len() + 4..] == b"\r\n") {
+                        || &chunk[boundary.len() + 4..] == b"\r\n")
+                {
                     Ok(Some(true))
                 } else {
                     Err(MultipartError::Boundary)
@@ -781,8 +783,10 @@ impl PayloadBuffer {
     /// Read bytes until new line delimiter or eof
     pub fn readline_or_eof(&mut self) -> Result<Option<Bytes>, MultipartError> {
         match self.readline() {
-            Err(MultipartError::Incomplete) if self.eof => Ok(Some(self.buf.take().freeze())),
-            line => line
+            Err(MultipartError::Incomplete) if self.eof => {
+                Ok(Some(self.buf.take().freeze()))
+            }
+            line => line,
         }
     }
 
@@ -866,7 +870,7 @@ mod tests {
              --abbc761f78ff4d7cb7573b5a23f96ef0\r\n\
              Content-Type: text/plain; charset=utf-8\r\nContent-Length: 4\r\n\r\n\
              data\r\n\
-            --abbc761f78ff4d7cb7573b5a23f96ef0--\r\n"
+             --abbc761f78ff4d7cb7573b5a23f96ef0--\r\n",
         );
         let mut headers = HeaderMap::new();
         headers.insert(

awc/CHANGES.md

@@ -1,14 +1,18 @@
 # Changes
 
-##
+## [0.2.6] - 2019-09-12
+
+### Added
+
+* Export frozen request related types.
+
+
+## [0.2.5] - 2019-09-11
 
 ### Added
 
 * Add `FrozenClientRequest` to support retries for sending HTTP requests
 
-
-## [0.2.5] - 2019-09-06
-
 ### Changed
 
 * Ensure that the `Host` header is set when initiating a WebSocket client connection.

awc/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "awc"
-version = "0.2.4"
+version = "0.2.6"
 authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
 description = "Actix http client."
 readme = "README.md"
@@ -44,7 +44,7 @@ flate2-rust = ["actix-http/flate2-rust"]
 [dependencies]
 actix-codec = "0.1.2"
 actix-service = "0.4.1"
-actix-http = "0.2.9"
+actix-http = "0.2.10"
 base64 = "0.10.1"
 bytes = "0.4"
 derive_more = "0.15.0"
@@ -63,7 +63,7 @@ rustls = { version = "0.15.2", optional = true }
 [dev-dependencies]
 actix-rt = "0.2.2"
 actix-web = { version = "1.0.0", features=["ssl"] }
-actix-http = { version = "0.2.4", features=["ssl"] }
+actix-http = { version = "0.2.10", features=["ssl"] }
 actix-http-test = { version = "0.2.0", features=["ssl"] }
 actix-utils = "0.4.1"
 actix-server = { version = "0.6.0", features=["ssl", "rust-tls"] }

awc/src/connect.rs

@@ -1,5 +1,5 @@
-use std::{fmt, io, net};
 use std::rc::Rc;
+use std::{fmt, io, net};
 
 use actix_codec::{AsyncRead, AsyncWrite, Framed};
 use actix_http::body::Body;
@@ -7,8 +7,8 @@ use actix_http::client::{
     Connect as ClientConnect, ConnectError, Connection, SendRequestError,
 };
 use actix_http::h1::ClientCodec;
-use actix_http::{RequestHead, RequestHeadType, ResponseHead};
 use actix_http::http::HeaderMap;
+use actix_http::{RequestHead, RequestHeadType, ResponseHead};
 use actix_service::Service;
 use futures::{Future, Poll};
 
@@ -82,7 +82,9 @@ where
                 })
                 .from_err()
                 // send request
-                .and_then(move |connection| connection.send_request(RequestHeadType::from(head), body))
+                .and_then(move |connection| {
+                    connection.send_request(RequestHeadType::from(head), body)
+                })
                 .map(|(head, payload)| ClientResponse::new(head, payload)),
         )
     }
@@ -103,7 +105,10 @@ where
                 })
                 .from_err()
                 // send request
-                .and_then(move |connection| connection.send_request(RequestHeadType::Rc(head, extra_headers), body))
+                .and_then(move |connection| {
+                    connection
+                        .send_request(RequestHeadType::Rc(head, extra_headers), body)
+                })
                 .map(|(head, payload)| ClientResponse::new(head, payload)),
         )
     }
@@ -127,7 +132,9 @@ where
                 })
                 .from_err()
                 // send request
-                .and_then(move |connection| connection.open_tunnel(RequestHeadType::from(head)))
+                .and_then(move |connection| {
+                    connection.open_tunnel(RequestHeadType::from(head))
+                })
                 .map(|(head, framed)| {
                     let framed = framed.map_io(|io| BoxedSocket(Box::new(Socket(io))));
                     (head, framed)
@@ -155,7 +162,9 @@ where
                 })
                 .from_err()
                 // send request
-                .and_then(move |connection| connection.open_tunnel(RequestHeadType::Rc(head, extra_headers)))
+                .and_then(move |connection| {
+                    connection.open_tunnel(RequestHeadType::Rc(head, extra_headers))
+                })
                 .map(|(head, framed)| {
                     let framed = framed.map_io(|io| BoxedSocket(Box::new(Socket(io))));
                     (head, framed)

awc/src/error.rs

@@ -1,5 +1,7 @@
 //! Http client errors
-pub use actix_http::client::{ConnectError, InvalidUrl, SendRequestError, FreezeRequestError};
+pub use actix_http::client::{
+    ConnectError, FreezeRequestError, InvalidUrl, SendRequestError,
+};
 pub use actix_http::error::PayloadError;
 pub use actix_http::ws::HandshakeError as WsHandshakeError;
 pub use actix_http::ws::ProtocolError as WsProtocolError;

awc/src/frozen.rs

@@ -0,0 +1,235 @@
+use std::net;
+use std::rc::Rc;
+use std::time::Duration;
+
+use bytes::Bytes;
+use futures::Stream;
+use serde::Serialize;
+
+use actix_http::body::Body;
+use actix_http::http::header::IntoHeaderValue;
+use actix_http::http::{
+    Error as HttpError, HeaderMap, HeaderName, HttpTryFrom, Method, Uri,
+};
+use actix_http::{Error, RequestHead};
+
+use crate::sender::{RequestSender, SendClientRequest};
+use crate::ClientConfig;
+
+/// `FrozenClientRequest` struct represents clonable client request.
+/// It could be used to send same request multiple times.
+#[derive(Clone)]
+pub struct FrozenClientRequest {
+    pub(crate) head: Rc<RequestHead>,
+    pub(crate) addr: Option<net::SocketAddr>,
+    pub(crate) response_decompress: bool,
+    pub(crate) timeout: Option<Duration>,
+    pub(crate) config: Rc<ClientConfig>,
+}
+
+impl FrozenClientRequest {
+    /// Get HTTP URI of request
+    pub fn get_uri(&self) -> &Uri {
+        &self.head.uri
+    }
+
+    /// Get HTTP method of this request
+    pub fn get_method(&self) -> &Method {
+        &self.head.method
+    }
+
+    /// Returns request's headers.
+    pub fn headers(&self) -> &HeaderMap {
+        &self.head.headers
+    }
+
+    /// Send a body.
+    pub fn send_body<B>(&self, body: B) -> SendClientRequest
+    where
+        B: Into<Body>,
+    {
+        RequestSender::Rc(self.head.clone(), None).send_body(
+            self.addr,
+            self.response_decompress,
+            self.timeout,
+            self.config.as_ref(),
+            body,
+        )
+    }
+
+    /// Send a json body.
+    pub fn send_json<T: Serialize>(&self, value: &T) -> SendClientRequest {
+        RequestSender::Rc(self.head.clone(), None).send_json(
+            self.addr,
+            self.response_decompress,
+            self.timeout,
+            self.config.as_ref(),
+            value,
+        )
+    }
+
+    /// Send an urlencoded body.
+    pub fn send_form<T: Serialize>(&self, value: &T) -> SendClientRequest {
+        RequestSender::Rc(self.head.clone(), None).send_form(
+            self.addr,
+            self.response_decompress,
+            self.timeout,
+            self.config.as_ref(),
+            value,
+        )
+    }
+
+    /// Send a streaming body.
+    pub fn send_stream<S, E>(&self, stream: S) -> SendClientRequest
+    where
+        S: Stream<Item = Bytes, Error = E> + 'static,
+        E: Into<Error> + 'static,
+    {
+        RequestSender::Rc(self.head.clone(), None).send_stream(
+            self.addr,
+            self.response_decompress,
+            self.timeout,
+            self.config.as_ref(),
+            stream,
+        )
+    }
+
+    /// Send an empty body.
+    pub fn send(&self) -> SendClientRequest {
+        RequestSender::Rc(self.head.clone(), None).send(
+            self.addr,
+            self.response_decompress,
+            self.timeout,
+            self.config.as_ref(),
+        )
+    }
+
+    /// Create a `FrozenSendBuilder` with extra headers
+    pub fn extra_headers(&self, extra_headers: HeaderMap) -> FrozenSendBuilder {
+        FrozenSendBuilder::new(self.clone(), extra_headers)
+    }
+
+    /// Create a `FrozenSendBuilder` with an extra header
+    pub fn extra_header<K, V>(&self, key: K, value: V) -> FrozenSendBuilder
+    where
+        HeaderName: HttpTryFrom<K>,
+        V: IntoHeaderValue,
+    {
+        self.extra_headers(HeaderMap::new())
+            .extra_header(key, value)
+    }
+}
+
+/// Builder that allows to modify extra headers.
+pub struct FrozenSendBuilder {
+    req: FrozenClientRequest,
+    extra_headers: HeaderMap,
+    err: Option<HttpError>,
+}
+
+impl FrozenSendBuilder {
+    pub(crate) fn new(req: FrozenClientRequest, extra_headers: HeaderMap) -> Self {
+        Self {
+            req,
+            extra_headers,
+            err: None,
+        }
+    }
+
+    /// Insert a header, it overrides existing header in `FrozenClientRequest`.
+    pub fn extra_header<K, V>(mut self, key: K, value: V) -> Self
+    where
+        HeaderName: HttpTryFrom<K>,
+        V: IntoHeaderValue,
+    {
+        match HeaderName::try_from(key) {
+            Ok(key) => match value.try_into() {
+                Ok(value) => self.extra_headers.insert(key, value),
+                Err(e) => self.err = Some(e.into()),
+            },
+            Err(e) => self.err = Some(e.into()),
+        }
+        self
+    }
+
+    /// Complete request construction and send a body.
+    pub fn send_body<B>(self, body: B) -> SendClientRequest
+    where
+        B: Into<Body>,
+    {
+        if let Some(e) = self.err {
+            return e.into();
+        }
+
+        RequestSender::Rc(self.req.head, Some(self.extra_headers)).send_body(
+            self.req.addr,
+            self.req.response_decompress,
+            self.req.timeout,
+            self.req.config.as_ref(),
+            body,
+        )
+    }
+
+    /// Complete request construction and send a json body.
+    pub fn send_json<T: Serialize>(self, value: &T) -> SendClientRequest {
+        if let Some(e) = self.err {
+            return e.into();
+        }
+
+        RequestSender::Rc(self.req.head, Some(self.extra_headers)).send_json(
+            self.req.addr,
+            self.req.response_decompress,
+            self.req.timeout,
+            self.req.config.as_ref(),
+            value,
+        )
+    }
+
+    /// Complete request construction and send an urlencoded body.
+    pub fn send_form<T: Serialize>(self, value: &T) -> SendClientRequest {
+        if let Some(e) = self.err {
+            return e.into();
+        }
+
+        RequestSender::Rc(self.req.head, Some(self.extra_headers)).send_form(
+            self.req.addr,
+            self.req.response_decompress,
+            self.req.timeout,
+            self.req.config.as_ref(),
+            value,
+        )
+    }
+
+    /// Complete request construction and send a streaming body.
+    pub fn send_stream<S, E>(self, stream: S) -> SendClientRequest
+    where
+        S: Stream<Item = Bytes, Error = E> + 'static,
+        E: Into<Error> + 'static,
+    {
+        if let Some(e) = self.err {
+            return e.into();
+        }
+
+        RequestSender::Rc(self.req.head, Some(self.extra_headers)).send_stream(
+            self.req.addr,
+            self.req.response_decompress,
+            self.req.timeout,
+            self.req.config.as_ref(),
+            stream,
+        )
+    }
+
+    /// Complete request construction and send an empty body.
+    pub fn send(self) -> SendClientRequest {
+        if let Some(e) = self.err {
+            return e.into();
+        }
+
+        RequestSender::Rc(self.req.head, Some(self.extra_headers)).send(
+            self.req.addr,
+            self.req.response_decompress,
+            self.req.timeout,
+            self.req.config.as_ref(),
+        )
+    }
+}

awc/src/lib.rs

@@ -33,15 +33,19 @@ use actix_http::RequestHead;
 mod builder;
 mod connect;
 pub mod error;
+mod frozen;
 mod request;
 mod response;
+mod sender;
 pub mod test;
 pub mod ws;
 
 pub use self::builder::ClientBuilder;
 pub use self::connect::BoxedSocket;
+pub use self::frozen::{FrozenClientRequest, FrozenSendBuilder};
 pub use self::request::ClientRequest;
 pub use self::response::{ClientResponse, JsonBody, MessageBody};
+pub use self::sender::SendClientRequest;
 
 use self::connect::{Connect, ConnectorWrapper};
 

awc/src/request.rs

@@ -1,29 +1,26 @@
 use std::fmt::Write as FmtWrite;
 use std::io::Write;
 use std::rc::Rc;
-use std::time::{Duration, Instant};
+use std::time::Duration;
 use std::{fmt, net};
 
 use bytes::{BufMut, Bytes, BytesMut};
-use futures::{Async, Future, Poll, Stream, try_ready};
+use futures::Stream;
 use percent_encoding::percent_encode;
 use serde::Serialize;
-use serde_json;
-use tokio_timer::Delay;
-use derive_more::From;
 
-use actix_http::body::{Body, BodyStream};
+use actix_http::body::Body;
 use actix_http::cookie::{Cookie, CookieJar, USERINFO};
-use actix_http::encoding::Decoder;
-use actix_http::http::header::{self, ContentEncoding, Header, IntoHeaderValue};
+use actix_http::http::header::{self, Header, IntoHeaderValue};
 use actix_http::http::{
     uri, ConnectionType, Error as HttpError, HeaderMap, HeaderName, HeaderValue,
     HttpTryFrom, Method, Uri, Version,
 };
-use actix_http::{Error, Payload, PayloadStream, RequestHead};
+use actix_http::{Error, RequestHead};
 
-use crate::error::{InvalidUrl, SendRequestError, FreezeRequestError};
-use crate::response::ClientResponse;
+use crate::error::{FreezeRequestError, InvalidUrl};
+use crate::frozen::FrozenClientRequest;
+use crate::sender::{PrepForSendingError, RequestSender, SendClientRequest};
 use crate::ClientConfig;
 
 #[cfg(any(feature = "brotli", feature = "flate2-zlib", feature = "flate2-rust"))]
@@ -375,6 +372,8 @@ impl ClientRequest {
         }
     }
 
+    /// Freeze request builder and construct `FrozenClientRequest`,
+    /// which could be used for sending same request multiple times.
     pub fn freeze(self) -> Result<FrozenClientRequest, FreezeRequestError> {
         let slf = match self.prep_for_sending() {
             Ok(slf) => slf,
@@ -393,10 +392,7 @@ impl ClientRequest {
     }
 
     /// Complete request construction and send body.
-    pub fn send_body<B>(
-        self,
-        body: B,
-    ) -> SendBody
+    pub fn send_body<B>(self, body: B) -> SendClientRequest
     where
         B: Into<Body>,
     {
@@ -405,47 +401,51 @@ impl ClientRequest {
             Err(e) => return e.into(),
         };
 
-        RequestSender::Owned(slf.head)
-            .send_body(slf.addr, slf.response_decompress, slf.timeout, slf.config.as_ref(), body)
+        RequestSender::Owned(slf.head).send_body(
+            slf.addr,
+            slf.response_decompress,
+            slf.timeout,
+            slf.config.as_ref(),
+            body,
+        )
     }
 
     /// Set a JSON body and generate `ClientRequest`
-    pub fn send_json<T: Serialize>(
-        self,
-        value: &T,
-    ) -> SendBody
-    {
+    pub fn send_json<T: Serialize>(self, value: &T) -> SendClientRequest {
         let slf = match self.prep_for_sending() {
             Ok(slf) => slf,
             Err(e) => return e.into(),
         };
 
-        RequestSender::Owned(slf.head)
-            .send_json(slf.addr, slf.response_decompress, slf.timeout, slf.config.as_ref(), value)
+        RequestSender::Owned(slf.head).send_json(
+            slf.addr,
+            slf.response_decompress,
+            slf.timeout,
+            slf.config.as_ref(),
+            value,
+        )
     }
 
     /// Set a urlencoded body and generate `ClientRequest`
     ///
     /// `ClientRequestBuilder` can not be used after this call.
-    pub fn send_form<T: Serialize>(
-        self,
-        value: &T,
-    ) -> SendBody
-    {
+    pub fn send_form<T: Serialize>(self, value: &T) -> SendClientRequest {
         let slf = match self.prep_for_sending() {
             Ok(slf) => slf,
             Err(e) => return e.into(),
         };
 
-        RequestSender::Owned(slf.head)
-            .send_form(slf.addr, slf.response_decompress, slf.timeout, slf.config.as_ref(), value)
+        RequestSender::Owned(slf.head).send_form(
+            slf.addr,
+            slf.response_decompress,
+            slf.timeout,
+            slf.config.as_ref(),
+            value,
+        )
     }
 
     /// Set an streaming body and generate `ClientRequest`.
-    pub fn send_stream<S, E>(
-        self,
-        stream: S,
-    ) -> SendBody
+    pub fn send_stream<S, E>(self, stream: S) -> SendClientRequest
     where
         S: Stream<Item = Bytes, Error = E> + 'static,
         E: Into<Error> + 'static,
@@ -455,22 +455,28 @@ impl ClientRequest {
             Err(e) => return e.into(),
         };
 
-        RequestSender::Owned(slf.head)
-            .send_stream(slf.addr, slf.response_decompress, slf.timeout, slf.config.as_ref(), stream)
+        RequestSender::Owned(slf.head).send_stream(
+            slf.addr,
+            slf.response_decompress,
+            slf.timeout,
+            slf.config.as_ref(),
+            stream,
+        )
     }
 
     /// Set an empty body and generate `ClientRequest`.
-    pub fn send(
-        self,
-    ) -> SendBody
-    {
+    pub fn send(self) -> SendClientRequest {
         let slf = match self.prep_for_sending() {
             Ok(slf) => slf,
             Err(e) => return e.into(),
         };
 
-        RequestSender::Owned(slf.head)
-            .send(slf.addr, slf.response_decompress, slf.timeout, slf.config.as_ref())
+        RequestSender::Owned(slf.head).send(
+            slf.addr,
+            slf.response_decompress,
+            slf.timeout,
+            slf.config.as_ref(),
+        )
     }
 
     fn prep_for_sending(mut self) -> Result<Self, PrepForSendingError> {
@@ -555,441 +561,6 @@ impl fmt::Debug for ClientRequest {
     }
 }
 
-#[derive(Clone)]
-pub struct FrozenClientRequest {
-    pub(crate) head: Rc<RequestHead>,
-    pub(crate) addr: Option<net::SocketAddr>,
-    pub(crate) response_decompress: bool,
-    pub(crate) timeout: Option<Duration>,
-    pub(crate) config: Rc<ClientConfig>,
-}
-
-impl FrozenClientRequest {
-    /// Get HTTP URI of request
-    pub fn get_uri(&self) -> &Uri {
-        &self.head.uri
-    }
-
-    /// Get HTTP method of this request
-    pub fn get_method(&self) -> &Method {
-        &self.head.method
-    }
-
-    /// Returns request's headers.
-    pub fn headers(&self) -> &HeaderMap {
-        &self.head.headers
-    }
-
-    /// Send a body.
-    pub fn send_body<B>(
-        &self,
-        body: B,
-    ) -> SendBody
-    where
-        B: Into<Body>,
-    {
-        RequestSender::Rc(self.head.clone(), None)
-            .send_body(self.addr, self.response_decompress, self.timeout, self.config.as_ref(), body)
-    }
-
-    /// Send a json body.
-    pub fn send_json<T: Serialize>(
-        &self,
-        value: &T,
-    ) -> SendBody
-    {
-        RequestSender::Rc(self.head.clone(), None)
-            .send_json(self.addr, self.response_decompress, self.timeout, self.config.as_ref(), value)
-    }
-
-    /// Send an urlencoded body.
-    pub fn send_form<T: Serialize>(
-        &self,
-        value: &T,
-    ) -> SendBody
-    {
-        RequestSender::Rc(self.head.clone(), None)
-            .send_form(self.addr, self.response_decompress, self.timeout, self.config.as_ref(), value)
-    }
-
-    /// Send a streaming body.
-    pub fn send_stream<S, E>(
-        &self,
-        stream: S,
-    ) -> SendBody
-    where
-        S: Stream<Item = Bytes, Error = E> + 'static,
-        E: Into<Error> + 'static,
-    {
-        RequestSender::Rc(self.head.clone(), None)
-            .send_stream(self.addr, self.response_decompress, self.timeout, self.config.as_ref(), stream)
-    }
-
-    /// Send an empty body.
-    pub fn send(
-        &self,
-    ) -> SendBody
-    {
-        RequestSender::Rc(self.head.clone(), None)
-            .send(self.addr, self.response_decompress, self.timeout, self.config.as_ref())
-    }
-
-    /// Create a `FrozenSendBuilder` with extra headers
-    pub fn extra_headers(&self, extra_headers: HeaderMap) -> FrozenSendBuilder {
-        FrozenSendBuilder::new(self.clone(), extra_headers)
-    }
-
-    /// Create a `FrozenSendBuilder` with an extra header
-    pub fn extra_header<K, V>(&self, key: K, value: V) -> FrozenSendBuilder
-    where
-        HeaderName: HttpTryFrom<K>,
-        V: IntoHeaderValue,
-    {
-        self.extra_headers(HeaderMap::new()).extra_header(key, value)
-    }
-}
-
-pub struct FrozenSendBuilder {
-    req: FrozenClientRequest,
-    extra_headers: HeaderMap,
-    err: Option<HttpError>,
-}
-
-impl FrozenSendBuilder {
-    pub(crate) fn new(req: FrozenClientRequest, extra_headers: HeaderMap) -> Self {
-        Self {
-            req,
-            extra_headers,
-            err: None,
-        }
-    }
-
-    /// Insert a header, it overrides existing header in `FrozenClientRequest`.
-    pub fn extra_header<K, V>(mut self, key: K, value: V) -> Self
-    where
-        HeaderName: HttpTryFrom<K>,
-        V: IntoHeaderValue,
-    {
-        match HeaderName::try_from(key) {
-            Ok(key) => match value.try_into() {
-                Ok(value) => self.extra_headers.insert(key, value),
-                Err(e) => self.err = Some(e.into()),
-            },
-            Err(e) => self.err = Some(e.into()),
-        }
-        self
-    }
-
-    /// Complete request construction and send a body.
-    pub fn send_body<B>(
-        self,
-        body: B,
-    ) -> SendBody
-    where
-        B: Into<Body>,
-    {
-        if let Some(e) = self.err {
-            return e.into()
-        }
-
-        RequestSender::Rc(self.req.head, Some(self.extra_headers))
-            .send_body(self.req.addr, self.req.response_decompress, self.req.timeout, self.req.config.as_ref(), body)
-    }
-
-    /// Complete request construction and send a json body.
-    pub fn send_json<T: Serialize>(
-        self,
-        value: &T,
-    ) -> SendBody
-    {
-        if let Some(e) = self.err {
-            return e.into()
-        }
-
-        RequestSender::Rc(self.req.head, Some(self.extra_headers))
-            .send_json(self.req.addr, self.req.response_decompress, self.req.timeout, self.req.config.as_ref(), value)
-    }
-
-    /// Complete request construction and send an urlencoded body.
-    pub fn send_form<T: Serialize>(
-        self,
-        value: &T,
-    ) -> SendBody
-    {
-        if let Some(e) = self.err {
-            return e.into()
-        }
-
-        RequestSender::Rc(self.req.head, Some(self.extra_headers))
-            .send_form(self.req.addr, self.req.response_decompress, self.req.timeout, self.req.config.as_ref(), value)
-    }
-
-    /// Complete request construction and send a streaming body.
-    pub fn send_stream<S, E>(
-        self,
-        stream: S,
-    ) -> SendBody
-    where
-        S: Stream<Item = Bytes, Error = E> + 'static,
-        E: Into<Error> + 'static,
-    {
-        if let Some(e) = self.err {
-            return e.into()
-        }
-
-        RequestSender::Rc(self.req.head, Some(self.extra_headers))
-            .send_stream(self.req.addr, self.req.response_decompress, self.req.timeout, self.req.config.as_ref(), stream)
-    }
-
-    /// Complete request construction and send an empty body.
-    pub fn send(
-        self,
-    ) -> SendBody
-    {
-        if let Some(e) = self.err {
-            return e.into()
-        }
-
-        RequestSender::Rc(self.req.head, Some(self.extra_headers))
-            .send(self.req.addr, self.req.response_decompress, self.req.timeout, self.req.config.as_ref())
-    }
-}
-
-#[derive(Debug, From)]
-enum PrepForSendingError {
-    Url(InvalidUrl),
-    Http(HttpError),
-}
-
-impl Into<FreezeRequestError> for PrepForSendingError {
-    fn into(self) -> FreezeRequestError {
-        match self {
-            PrepForSendingError::Url(e) => FreezeRequestError::Url(e),
-            PrepForSendingError::Http(e) => FreezeRequestError::Http(e),
-        }
-    }
-}
-
-impl Into<SendRequestError> for PrepForSendingError {
-    fn into(self) -> SendRequestError {
-        match self {
-            PrepForSendingError::Url(e) => SendRequestError::Url(e),
-            PrepForSendingError::Http(e) => SendRequestError::Http(e),
-        }
-    }
-}
-
-pub enum SendBody
-{
-    Fut(Box<dyn Future<Item = ClientResponse, Error = SendRequestError>>, Option<Delay>, bool),
-    Err(Option<SendRequestError>),
-}
-
-impl SendBody
-{
-    pub fn new(
-        send: Box<dyn Future<Item = ClientResponse, Error = SendRequestError>>,
-        response_decompress: bool,
-        timeout: Option<Duration>,
-    ) -> SendBody
-    {
-        let delay = timeout.map(|t| Delay::new(Instant::now() + t));
-        SendBody::Fut(send, delay, response_decompress)
-    }
-}
-
-impl Future for SendBody
-{
-    type Item = ClientResponse<Decoder<Payload<PayloadStream>>>;
-    type Error = SendRequestError;
-
-    fn poll(&mut self) -> Poll<Self::Item, Self::Error> {
-        match self {
-            SendBody::Fut(send, delay, response_decompress) => {
-                if delay.is_some() {
-                    match delay.poll() {
-                        Ok(Async::NotReady) => (),
-                        _ => return Err(SendRequestError::Timeout),
-                    }
-                }
-
-                let res = try_ready!(send.poll())
-                    .map_body(|head, payload| {
-                        if *response_decompress {
-                            Payload::Stream(Decoder::from_headers(payload, &head.headers))
-                        } else {
-                            Payload::Stream(Decoder::new(payload, ContentEncoding::Identity))
-                        }
-                    });
-
-                Ok(Async::Ready(res))
-            },
-            SendBody::Err(ref mut e) => {
-                match e.take() {
-                    Some(e) => Err(e.into()),
-                    None => panic!("Attempting to call completed future"),
-                }
-            }
-        }
-    }
-}
-
-
-impl From<SendRequestError> for SendBody
-{
-    fn from(e: SendRequestError) -> Self {
-        SendBody::Err(Some(e))
-    }
-}
-
-impl From<Error> for SendBody
-{
-    fn from(e: Error) -> Self {
-        SendBody::Err(Some(e.into()))
-    }
-}
-
-impl From<HttpError> for SendBody
-{
-    fn from(e: HttpError) -> Self {
-        SendBody::Err(Some(e.into()))
-    }
-}
-
-impl From<PrepForSendingError> for SendBody
-{
-    fn from(e: PrepForSendingError) -> Self {
-        SendBody::Err(Some(e.into()))
-    }
-}
-
-#[derive(Debug)]
-enum RequestSender {
-    Owned(RequestHead),
-    Rc(Rc<RequestHead>, Option<HeaderMap>),
-}
-
-impl RequestSender {
-    pub fn send_body<B>(
-        self,
-        addr: Option<net::SocketAddr>,
-        response_decompress: bool,
-        timeout: Option<Duration>,
-        config: &ClientConfig,
-        body: B,
-    ) -> SendBody
-    where
-        B: Into<Body>,
-    {
-        let mut connector = config.connector.borrow_mut();
-
-        let fut = match self {
-            RequestSender::Owned(head) => connector.send_request(head, body.into(), addr),
-            RequestSender::Rc(head, extra_headers) => connector.send_request_extra(head, extra_headers, body.into(), addr),
-        };
-
-        SendBody::new(fut, response_decompress, timeout.or_else(|| config.timeout.clone()))
-    }
-
-    pub fn send_json<T: Serialize>(
-        mut self,
-        addr: Option<net::SocketAddr>,
-        response_decompress: bool,
-        timeout: Option<Duration>,
-        config: &ClientConfig,
-        value: &T,
-    ) -> SendBody
-    {
-        let body = match serde_json::to_string(value) {
-            Ok(body) => body,
-            Err(e) => return Error::from(e).into(),
-        };
-
-        if let Err(e) = self.set_header_if_none(header::CONTENT_TYPE, "application/json") {
-            return e.into();
-        }
-
-        self.send_body(addr, response_decompress, timeout, config, Body::Bytes(Bytes::from(body)))
-    }
-
-    pub fn send_form<T: Serialize>(
-        mut self,
-        addr: Option<net::SocketAddr>,
-        response_decompress: bool,
-        timeout: Option<Duration>,
-        config: &ClientConfig,
-        value: &T,
-    ) -> SendBody
-    {
-        let body = match serde_urlencoded::to_string(value) {
-            Ok(body) => body,
-            Err(e) => return Error::from(e).into(),
-        };
-
-        // set content-type
-        if let Err(e) = self.set_header_if_none(header::CONTENT_TYPE, "application/x-www-form-urlencoded") {
-            return e.into();
-        }
-
-        self.send_body(addr, response_decompress, timeout, config, Body::Bytes(Bytes::from(body)))
-    }
-
-    pub fn send_stream<S, E>(
-        self,
-        addr: Option<net::SocketAddr>,
-        response_decompress: bool,
-        timeout: Option<Duration>,
-        config: &ClientConfig,
-        stream: S,
-    ) -> SendBody
-    where
-        S: Stream<Item = Bytes, Error = E> + 'static,
-        E: Into<Error> + 'static,
-    {
-        self.send_body(addr, response_decompress, timeout, config, Body::from_message(BodyStream::new(stream)))
-    }
-
-    pub fn send(
-        self,
-        addr: Option<net::SocketAddr>,
-        response_decompress: bool,
-        timeout: Option<Duration>,
-        config: &ClientConfig,
-    ) -> SendBody
-    {
-        self.send_body(addr, response_decompress, timeout, config, Body::Empty)
-    }
-
-    fn set_header_if_none<V>(&mut self, key: HeaderName, value: V) -> Result<(), HttpError>
-    where
-        V: IntoHeaderValue,
-    {
-        match self {
-            RequestSender::Owned(head) => {
-                if !head.headers.contains_key(&key) {
-                    match value.try_into() {
-                        Ok(value) => head.headers.insert(key, value),
-                        Err(e) => return Err(e.into()),
-                    }
-                }
-            },
-            RequestSender::Rc(head, extra_headers) => {
-                if !head.headers.contains_key(&key) && !extra_headers.iter().any(|h| h.contains_key(&key)) {
-                    match value.try_into(){
-                        Ok(v) => {
-                            let h = extra_headers.get_or_insert(HeaderMap::new());
-                            h.insert(key, v)
-                        },
-                        Err(e) => return Err(e.into()),
-                    };
-                }
-            }
-        }
-
-        Ok(())
-    }
-}
-
 #[cfg(test)]
 mod tests {
     use std::time::SystemTime;

awc/src/sender.rs

@@ -0,0 +1,282 @@
+use std::net;
+use std::rc::Rc;
+use std::time::{Duration, Instant};
+
+use bytes::Bytes;
+use derive_more::From;
+use futures::{try_ready, Async, Future, Poll, Stream};
+use serde::Serialize;
+use serde_json;
+use tokio_timer::Delay;
+
+use actix_http::body::{Body, BodyStream};
+use actix_http::encoding::Decoder;
+use actix_http::http::header::{self, ContentEncoding, IntoHeaderValue};
+use actix_http::http::{Error as HttpError, HeaderMap, HeaderName};
+use actix_http::{Error, Payload, PayloadStream, RequestHead};
+
+use crate::error::{FreezeRequestError, InvalidUrl, SendRequestError};
+use crate::response::ClientResponse;
+use crate::ClientConfig;
+
+#[derive(Debug, From)]
+pub(crate) enum PrepForSendingError {
+    Url(InvalidUrl),
+    Http(HttpError),
+}
+
+impl Into<FreezeRequestError> for PrepForSendingError {
+    fn into(self) -> FreezeRequestError {
+        match self {
+            PrepForSendingError::Url(e) => FreezeRequestError::Url(e),
+            PrepForSendingError::Http(e) => FreezeRequestError::Http(e),
+        }
+    }
+}
+
+impl Into<SendRequestError> for PrepForSendingError {
+    fn into(self) -> SendRequestError {
+        match self {
+            PrepForSendingError::Url(e) => SendRequestError::Url(e),
+            PrepForSendingError::Http(e) => SendRequestError::Http(e),
+        }
+    }
+}
+
+/// Future that sends request's payload and resolves to a server response.
+#[must_use = "futures do nothing unless polled"]
+pub enum SendClientRequest {
+    Fut(
+        Box<dyn Future<Item = ClientResponse, Error = SendRequestError>>,
+        Option<Delay>,
+        bool,
+    ),
+    Err(Option<SendRequestError>),
+}
+
+impl SendClientRequest {
+    pub(crate) fn new(
+        send: Box<dyn Future<Item = ClientResponse, Error = SendRequestError>>,
+        response_decompress: bool,
+        timeout: Option<Duration>,
+    ) -> SendClientRequest {
+        let delay = timeout.map(|t| Delay::new(Instant::now() + t));
+        SendClientRequest::Fut(send, delay, response_decompress)
+    }
+}
+
+impl Future for SendClientRequest {
+    type Item = ClientResponse<Decoder<Payload<PayloadStream>>>;
+    type Error = SendRequestError;
+
+    fn poll(&mut self) -> Poll<Self::Item, Self::Error> {
+        match self {
+            SendClientRequest::Fut(send, delay, response_decompress) => {
+                if delay.is_some() {
+                    match delay.poll() {
+                        Ok(Async::NotReady) => (),
+                        _ => return Err(SendRequestError::Timeout),
+                    }
+                }
+
+                let res = try_ready!(send.poll()).map_body(|head, payload| {
+                    if *response_decompress {
+                        Payload::Stream(Decoder::from_headers(payload, &head.headers))
+                    } else {
+                        Payload::Stream(Decoder::new(payload, ContentEncoding::Identity))
+                    }
+                });
+
+                Ok(Async::Ready(res))
+            }
+            SendClientRequest::Err(ref mut e) => match e.take() {
+                Some(e) => Err(e),
+                None => panic!("Attempting to call completed future"),
+            },
+        }
+    }
+}
+
+impl From<SendRequestError> for SendClientRequest {
+    fn from(e: SendRequestError) -> Self {
+        SendClientRequest::Err(Some(e))
+    }
+}
+
+impl From<Error> for SendClientRequest {
+    fn from(e: Error) -> Self {
+        SendClientRequest::Err(Some(e.into()))
+    }
+}
+
+impl From<HttpError> for SendClientRequest {
+    fn from(e: HttpError) -> Self {
+        SendClientRequest::Err(Some(e.into()))
+    }
+}
+
+impl From<PrepForSendingError> for SendClientRequest {
+    fn from(e: PrepForSendingError) -> Self {
+        SendClientRequest::Err(Some(e.into()))
+    }
+}
+
+#[derive(Debug)]
+pub(crate) enum RequestSender {
+    Owned(RequestHead),
+    Rc(Rc<RequestHead>, Option<HeaderMap>),
+}
+
+impl RequestSender {
+    pub(crate) fn send_body<B>(
+        self,
+        addr: Option<net::SocketAddr>,
+        response_decompress: bool,
+        timeout: Option<Duration>,
+        config: &ClientConfig,
+        body: B,
+    ) -> SendClientRequest
+    where
+        B: Into<Body>,
+    {
+        let mut connector = config.connector.borrow_mut();
+
+        let fut = match self {
+            RequestSender::Owned(head) => {
+                connector.send_request(head, body.into(), addr)
+            }
+            RequestSender::Rc(head, extra_headers) => {
+                connector.send_request_extra(head, extra_headers, body.into(), addr)
+            }
+        };
+
+        SendClientRequest::new(
+            fut,
+            response_decompress,
+            timeout.or_else(|| config.timeout),
+        )
+    }
+
+    pub(crate) fn send_json<T: Serialize>(
+        mut self,
+        addr: Option<net::SocketAddr>,
+        response_decompress: bool,
+        timeout: Option<Duration>,
+        config: &ClientConfig,
+        value: &T,
+    ) -> SendClientRequest {
+        let body = match serde_json::to_string(value) {
+            Ok(body) => body,
+            Err(e) => return Error::from(e).into(),
+        };
+
+        if let Err(e) = self.set_header_if_none(header::CONTENT_TYPE, "application/json")
+        {
+            return e.into();
+        }
+
+        self.send_body(
+            addr,
+            response_decompress,
+            timeout,
+            config,
+            Body::Bytes(Bytes::from(body)),
+        )
+    }
+
+    pub(crate) fn send_form<T: Serialize>(
+        mut self,
+        addr: Option<net::SocketAddr>,
+        response_decompress: bool,
+        timeout: Option<Duration>,
+        config: &ClientConfig,
+        value: &T,
+    ) -> SendClientRequest {
+        let body = match serde_urlencoded::to_string(value) {
+            Ok(body) => body,
+            Err(e) => return Error::from(e).into(),
+        };
+
+        // set content-type
+        if let Err(e) = self.set_header_if_none(
+            header::CONTENT_TYPE,
+            "application/x-www-form-urlencoded",
+        ) {
+            return e.into();
+        }
+
+        self.send_body(
+            addr,
+            response_decompress,
+            timeout,
+            config,
+            Body::Bytes(Bytes::from(body)),
+        )
+    }
+
+    pub(crate) fn send_stream<S, E>(
+        self,
+        addr: Option<net::SocketAddr>,
+        response_decompress: bool,
+        timeout: Option<Duration>,
+        config: &ClientConfig,
+        stream: S,
+    ) -> SendClientRequest
+    where
+        S: Stream<Item = Bytes, Error = E> + 'static,
+        E: Into<Error> + 'static,
+    {
+        self.send_body(
+            addr,
+            response_decompress,
+            timeout,
+            config,
+            Body::from_message(BodyStream::new(stream)),
+        )
+    }
+
+    pub(crate) fn send(
+        self,
+        addr: Option<net::SocketAddr>,
+        response_decompress: bool,
+        timeout: Option<Duration>,
+        config: &ClientConfig,
+    ) -> SendClientRequest {
+        self.send_body(addr, response_decompress, timeout, config, Body::Empty)
+    }
+
+    fn set_header_if_none<V>(
+        &mut self,
+        key: HeaderName,
+        value: V,
+    ) -> Result<(), HttpError>
+    where
+        V: IntoHeaderValue,
+    {
+        match self {
+            RequestSender::Owned(head) => {
+                if !head.headers.contains_key(&key) {
+                    match value.try_into() {
+                        Ok(value) => head.headers.insert(key, value),
+                        Err(e) => return Err(e.into()),
+                    }
+                }
+            }
+            RequestSender::Rc(head, extra_headers) => {
+                if !head.headers.contains_key(&key)
+                    && !extra_headers.iter().any(|h| h.contains_key(&key))
+                {
+                    match value.try_into() {
+                        Ok(v) => {
+                            let h = extra_headers.get_or_insert(HeaderMap::new());
+                            h.insert(key, v)
+                        }
+                        Err(e) => return Err(e.into()),
+                    };
+                }
+            }
+        }
+
+        Ok(())
+    }
+}

awc/src/ws.rs

@@ -234,7 +234,10 @@ impl WebsocketsRequest {
         }
 
         if !self.head.headers.contains_key(header::HOST) {
-            self.head.headers.insert(header::HOST, HeaderValue::from_str(uri.host().unwrap()).unwrap());
+            self.head.headers.insert(
+                header::HOST,
+                HeaderValue::from_str(uri.host().unwrap()).unwrap(),
+            );
         }
 
         // set cookies

src/app_service.rs

@@ -169,7 +169,7 @@ where
             match self.data_factories_fut[idx].poll()? {
                 Async::Ready(f) => {
                     self.data_factories.push(f);
-                    self.data_factories_fut.remove(idx);
+                    let _ = self.data_factories_fut.remove(idx);
                 }
                 Async::NotReady => idx += 1,
             }

src/middleware/mod.rs

@@ -2,13 +2,13 @@
 mod compress;
 pub use self::compress::{BodyEncoding, Compress};
 
+mod condition;
 mod defaultheaders;
 pub mod errhandlers;
 mod logger;
 mod normalize;
-mod condition;
 
+pub use self::condition::Condition;
 pub use self::defaultheaders::DefaultHeaders;
 pub use self::logger::Logger;
 pub use self::normalize::NormalizePath;
-pub use self::condition::Condition;