| <!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `/root/.cargo/registry/src/github.com-1ecc6299db9ec823/http-0.2.9/src/response.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>response.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../normalize.css"><link rel="stylesheet" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../ayu.css" disabled><link rel="stylesheet" href="../../dark.css" disabled><link rel="stylesheet" href="../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../storage.js"></script><script defer src="../../source-script.js"></script><script defer src="../../source-files.js"></script><script defer src="../../main.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../favicon.svg"></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><a class="sidebar-logo" href="../../http/index.html"><div class="logo-container"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></div></a></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../http/index.html"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></a><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span> |
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| </pre><pre class="rust"><code><span class="doccomment">//! HTTP response types. |
| //! |
| //! This module contains structs related to HTTP responses, notably the |
| //! `Response` type itself as well as a builder to create responses. Typically |
| //! you'll import the `http::Response` type rather than reaching into this |
| //! module itself. |
| //! |
| //! # Examples |
| //! |
| //! Creating a `Response` to return |
| //! |
| //! ``` |
| //! use http::{Request, Response, StatusCode}; |
| //! |
| //! fn respond_to(req: Request<()>) -> http::Result<Response<()>> { |
| //! let mut builder = Response::builder() |
| //! .header("Foo", "Bar") |
| //! .status(StatusCode::OK); |
| //! |
| //! if req.headers().contains_key("Another-Header") { |
| //! builder = builder.header("Another-Header", "Ack"); |
| //! } |
| //! |
| //! builder.body(()) |
| //! } |
| //! ``` |
| //! |
| //! A simple 404 handler |
| //! |
| //! ``` |
| //! use http::{Request, Response, StatusCode}; |
| //! |
| //! fn not_found(_req: Request<()>) -> http::Result<Response<()>> { |
| //! Response::builder() |
| //! .status(StatusCode::NOT_FOUND) |
| //! .body(()) |
| //! } |
| //! ``` |
| //! |
| //! Or otherwise inspecting the result of a request: |
| //! |
| //! ```no_run |
| //! use http::{Request, Response}; |
| //! |
| //! fn get(url: &str) -> http::Result<Response<()>> { |
| //! // ... |
| //! # panic!() |
| //! } |
| //! |
| //! let response = get("https://www.rust-lang.org/").unwrap(); |
| //! |
| //! if !response.status().is_success() { |
| //! panic!("failed to get a successful response status!"); |
| //! } |
| //! |
| //! if let Some(date) = response.headers().get("Date") { |
| //! // we've got a `Date` header! |
| //! } |
| //! |
| //! let body = response.body(); |
| //! // ... |
| //! ``` |
| |
| </span><span class="kw">use </span>std::any::Any; |
| <span class="kw">use </span>std::convert::TryFrom; |
| <span class="kw">use </span>std::fmt; |
| |
| <span class="kw">use </span><span class="kw">crate</span>::header::{HeaderMap, HeaderName, HeaderValue}; |
| <span class="kw">use </span><span class="kw">crate</span>::status::StatusCode; |
| <span class="kw">use </span><span class="kw">crate</span>::version::Version; |
| <span class="kw">use crate</span>::{Extensions, <span class="prelude-ty">Result</span>}; |
| |
| <span class="doccomment">/// Represents an HTTP response |
| /// |
| /// An HTTP response consists of a head and a potentially optional body. The body |
| /// component is generic, enabling arbitrary types to represent the HTTP body. |
| /// For example, the body could be `Vec<u8>`, a `Stream` of byte chunks, or a |
| /// value that has been deserialized. |
| /// |
| /// Typically you'll work with responses on the client side as the result of |
| /// sending a `Request` and on the server you'll be generating a `Response` to |
| /// send back to the client. |
| /// |
| /// # Examples |
| /// |
| /// Creating a `Response` to return |
| /// |
| /// ``` |
| /// use http::{Request, Response, StatusCode}; |
| /// |
| /// fn respond_to(req: Request<()>) -> http::Result<Response<()>> { |
| /// let mut builder = Response::builder() |
| /// .header("Foo", "Bar") |
| /// .status(StatusCode::OK); |
| /// |
| /// if req.headers().contains_key("Another-Header") { |
| /// builder = builder.header("Another-Header", "Ack"); |
| /// } |
| /// |
| /// builder.body(()) |
| /// } |
| /// ``` |
| /// |
| /// A simple 404 handler |
| /// |
| /// ``` |
| /// use http::{Request, Response, StatusCode}; |
| /// |
| /// fn not_found(_req: Request<()>) -> http::Result<Response<()>> { |
| /// Response::builder() |
| /// .status(StatusCode::NOT_FOUND) |
| /// .body(()) |
| /// } |
| /// ``` |
| /// |
| /// Or otherwise inspecting the result of a request: |
| /// |
| /// ```no_run |
| /// use http::{Request, Response}; |
| /// |
| /// fn get(url: &str) -> http::Result<Response<()>> { |
| /// // ... |
| /// # panic!() |
| /// } |
| /// |
| /// let response = get("https://www.rust-lang.org/").unwrap(); |
| /// |
| /// if !response.status().is_success() { |
| /// panic!("failed to get a successful response status!"); |
| /// } |
| /// |
| /// if let Some(date) = response.headers().get("Date") { |
| /// // we've got a `Date` header! |
| /// } |
| /// |
| /// let body = response.body(); |
| /// // ... |
| /// ``` |
| /// |
| /// Deserialize a response of bytes via json: |
| /// |
| /// ``` |
| /// # extern crate serde; |
| /// # extern crate serde_json; |
| /// # extern crate http; |
| /// use http::Response; |
| /// use serde::de; |
| /// |
| /// fn deserialize<T>(res: Response<Vec<u8>>) -> serde_json::Result<Response<T>> |
| /// where for<'de> T: de::Deserialize<'de>, |
| /// { |
| /// let (parts, body) = res.into_parts(); |
| /// let body = serde_json::from_slice(&body)?; |
| /// Ok(Response::from_parts(parts, body)) |
| /// } |
| /// # |
| /// # fn main() {} |
| /// ``` |
| /// |
| /// Or alternatively, serialize the body of a response to json |
| /// |
| /// ``` |
| /// # extern crate serde; |
| /// # extern crate serde_json; |
| /// # extern crate http; |
| /// use http::Response; |
| /// use serde::ser; |
| /// |
| /// fn serialize<T>(res: Response<T>) -> serde_json::Result<Response<Vec<u8>>> |
| /// where T: ser::Serialize, |
| /// { |
| /// let (parts, body) = res.into_parts(); |
| /// let body = serde_json::to_vec(&body)?; |
| /// Ok(Response::from_parts(parts, body)) |
| /// } |
| /// # |
| /// # fn main() {} |
| /// ``` |
| </span><span class="kw">pub struct </span>Response<T> { |
| head: Parts, |
| body: T, |
| } |
| |
| <span class="doccomment">/// Component parts of an HTTP `Response` |
| /// |
| /// The HTTP response head consists of a status, version, and a set of |
| /// header fields. |
| </span><span class="kw">pub struct </span>Parts { |
| <span class="doccomment">/// The response's status |
| </span><span class="kw">pub </span>status: StatusCode, |
| |
| <span class="doccomment">/// The response's version |
| </span><span class="kw">pub </span>version: Version, |
| |
| <span class="doccomment">/// The response's headers |
| </span><span class="kw">pub </span>headers: HeaderMap<HeaderValue>, |
| |
| <span class="doccomment">/// The response's extensions |
| </span><span class="kw">pub </span>extensions: Extensions, |
| |
| _priv: (), |
| } |
| |
| <span class="doccomment">/// An HTTP response builder |
| /// |
| /// This type can be used to construct an instance of `Response` through a |
| /// builder-like pattern. |
| </span><span class="attribute">#[derive(Debug)] |
| </span><span class="kw">pub struct </span>Builder { |
| inner: <span class="prelude-ty">Result</span><Parts>, |
| } |
| |
| <span class="kw">impl </span>Response<()> { |
| <span class="doccomment">/// Creates a new builder-style object to manufacture a `Response` |
| /// |
| /// This method returns an instance of `Builder` which can be used to |
| /// create a `Response`. |
| /// |
| /// # Examples |
| /// |
| /// ``` |
| /// # use http::*; |
| /// let response = Response::builder() |
| /// .status(200) |
| /// .header("X-Custom-Foo", "Bar") |
| /// .body(()) |
| /// .unwrap(); |
| /// ``` |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>builder() -> Builder { |
| Builder::new() |
| } |
| } |
| |
| <span class="kw">impl</span><T> Response<T> { |
| <span class="doccomment">/// Creates a new blank `Response` with the body |
| /// |
| /// The component ports of this response will be set to their default, e.g. |
| /// the ok status, no headers, etc. |
| /// |
| /// # Examples |
| /// |
| /// ``` |
| /// # use http::*; |
| /// let response = Response::new("hello world"); |
| /// |
| /// assert_eq!(response.status(), StatusCode::OK); |
| /// assert_eq!(*response.body(), "hello world"); |
| /// ``` |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>new(body: T) -> Response<T> { |
| Response { |
| head: Parts::new(), |
| body: body, |
| } |
| } |
| |
| <span class="doccomment">/// Creates a new `Response` with the given head and body |
| /// |
| /// # Examples |
| /// |
| /// ``` |
| /// # use http::*; |
| /// let response = Response::new("hello world"); |
| /// let (mut parts, body) = response.into_parts(); |
| /// |
| /// parts.status = StatusCode::BAD_REQUEST; |
| /// let response = Response::from_parts(parts, body); |
| /// |
| /// assert_eq!(response.status(), StatusCode::BAD_REQUEST); |
| /// assert_eq!(*response.body(), "hello world"); |
| /// ``` |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>from_parts(parts: Parts, body: T) -> Response<T> { |
| Response { |
| head: parts, |
| body: body, |
| } |
| } |
| |
| <span class="doccomment">/// Returns the `StatusCode`. |
| /// |
| /// # Examples |
| /// |
| /// ``` |
| /// # use http::*; |
| /// let response: Response<()> = Response::default(); |
| /// assert_eq!(response.status(), StatusCode::OK); |
| /// ``` |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>status(<span class="kw-2">&</span><span class="self">self</span>) -> StatusCode { |
| <span class="self">self</span>.head.status |
| } |
| |
| <span class="doccomment">/// Returns a mutable reference to the associated `StatusCode`. |
| /// |
| /// # Examples |
| /// |
| /// ``` |
| /// # use http::*; |
| /// let mut response: Response<()> = Response::default(); |
| /// *response.status_mut() = StatusCode::CREATED; |
| /// assert_eq!(response.status(), StatusCode::CREATED); |
| /// ``` |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>status_mut(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="kw-2">&mut </span>StatusCode { |
| <span class="kw-2">&mut </span><span class="self">self</span>.head.status |
| } |
| |
| <span class="doccomment">/// Returns a reference to the associated version. |
| /// |
| /// # Examples |
| /// |
| /// ``` |
| /// # use http::*; |
| /// let response: Response<()> = Response::default(); |
| /// assert_eq!(response.version(), Version::HTTP_11); |
| /// ``` |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>version(<span class="kw-2">&</span><span class="self">self</span>) -> Version { |
| <span class="self">self</span>.head.version |
| } |
| |
| <span class="doccomment">/// Returns a mutable reference to the associated version. |
| /// |
| /// # Examples |
| /// |
| /// ``` |
| /// # use http::*; |
| /// let mut response: Response<()> = Response::default(); |
| /// *response.version_mut() = Version::HTTP_2; |
| /// assert_eq!(response.version(), Version::HTTP_2); |
| /// ``` |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>version_mut(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="kw-2">&mut </span>Version { |
| <span class="kw-2">&mut </span><span class="self">self</span>.head.version |
| } |
| |
| <span class="doccomment">/// Returns a reference to the associated header field map. |
| /// |
| /// # Examples |
| /// |
| /// ``` |
| /// # use http::*; |
| /// let response: Response<()> = Response::default(); |
| /// assert!(response.headers().is_empty()); |
| /// ``` |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>headers(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span>HeaderMap<HeaderValue> { |
| <span class="kw-2">&</span><span class="self">self</span>.head.headers |
| } |
| |
| <span class="doccomment">/// Returns a mutable reference to the associated header field map. |
| /// |
| /// # Examples |
| /// |
| /// ``` |
| /// # use http::*; |
| /// # use http::header::*; |
| /// let mut response: Response<()> = Response::default(); |
| /// response.headers_mut().insert(HOST, HeaderValue::from_static("world")); |
| /// assert!(!response.headers().is_empty()); |
| /// ``` |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>headers_mut(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="kw-2">&mut </span>HeaderMap<HeaderValue> { |
| <span class="kw-2">&mut </span><span class="self">self</span>.head.headers |
| } |
| |
| <span class="doccomment">/// Returns a reference to the associated extensions. |
| /// |
| /// # Examples |
| /// |
| /// ``` |
| /// # use http::*; |
| /// let response: Response<()> = Response::default(); |
| /// assert!(response.extensions().get::<i32>().is_none()); |
| /// ``` |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>extensions(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span>Extensions { |
| <span class="kw-2">&</span><span class="self">self</span>.head.extensions |
| } |
| |
| <span class="doccomment">/// Returns a mutable reference to the associated extensions. |
| /// |
| /// # Examples |
| /// |
| /// ``` |
| /// # use http::*; |
| /// # use http::header::*; |
| /// let mut response: Response<()> = Response::default(); |
| /// response.extensions_mut().insert("hello"); |
| /// assert_eq!(response.extensions().get(), Some(&"hello")); |
| /// ``` |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>extensions_mut(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="kw-2">&mut </span>Extensions { |
| <span class="kw-2">&mut </span><span class="self">self</span>.head.extensions |
| } |
| |
| <span class="doccomment">/// Returns a reference to the associated HTTP body. |
| /// |
| /// # Examples |
| /// |
| /// ``` |
| /// # use http::*; |
| /// let response: Response<String> = Response::default(); |
| /// assert!(response.body().is_empty()); |
| /// ``` |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>body(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span>T { |
| <span class="kw-2">&</span><span class="self">self</span>.body |
| } |
| |
| <span class="doccomment">/// Returns a mutable reference to the associated HTTP body. |
| /// |
| /// # Examples |
| /// |
| /// ``` |
| /// # use http::*; |
| /// let mut response: Response<String> = Response::default(); |
| /// response.body_mut().push_str("hello world"); |
| /// assert!(!response.body().is_empty()); |
| /// ``` |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>body_mut(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="kw-2">&mut </span>T { |
| <span class="kw-2">&mut </span><span class="self">self</span>.body |
| } |
| |
| <span class="doccomment">/// Consumes the response, returning just the body. |
| /// |
| /// # Examples |
| /// |
| /// ``` |
| /// # use http::Response; |
| /// let response = Response::new(10); |
| /// let body = response.into_body(); |
| /// assert_eq!(body, 10); |
| /// ``` |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>into_body(<span class="self">self</span>) -> T { |
| <span class="self">self</span>.body |
| } |
| |
| <span class="doccomment">/// Consumes the response returning the head and body parts. |
| /// |
| /// # Examples |
| /// |
| /// ``` |
| /// # use http::*; |
| /// let response: Response<()> = Response::default(); |
| /// let (parts, body) = response.into_parts(); |
| /// assert_eq!(parts.status, StatusCode::OK); |
| /// ``` |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>into_parts(<span class="self">self</span>) -> (Parts, T) { |
| (<span class="self">self</span>.head, <span class="self">self</span>.body) |
| } |
| |
| <span class="doccomment">/// Consumes the response returning a new response with body mapped to the |
| /// return type of the passed in function. |
| /// |
| /// # Examples |
| /// |
| /// ``` |
| /// # use http::*; |
| /// let response = Response::builder().body("some string").unwrap(); |
| /// let mapped_response: Response<&[u8]> = response.map(|b| { |
| /// assert_eq!(b, "some string"); |
| /// b.as_bytes() |
| /// }); |
| /// assert_eq!(mapped_response.body(), &"some string".as_bytes()); |
| /// ``` |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>map<F, U>(<span class="self">self</span>, f: F) -> Response<U> |
| <span class="kw">where |
| </span>F: FnOnce(T) -> U, |
| { |
| Response { |
| body: f(<span class="self">self</span>.body), |
| head: <span class="self">self</span>.head, |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><T: Default> Default <span class="kw">for </span>Response<T> { |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>default() -> Response<T> { |
| Response::new(T::default()) |
| } |
| } |
| |
| <span class="kw">impl</span><T: fmt::Debug> fmt::Debug <span class="kw">for </span>Response<T> { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>fmt::Formatter<<span class="lifetime">'_</span>>) -> fmt::Result { |
| f.debug_struct(<span class="string">"Response"</span>) |
| .field(<span class="string">"status"</span>, <span class="kw-2">&</span><span class="self">self</span>.status()) |
| .field(<span class="string">"version"</span>, <span class="kw-2">&</span><span class="self">self</span>.version()) |
| .field(<span class="string">"headers"</span>, <span class="self">self</span>.headers()) |
| <span class="comment">// omits Extensions because not useful |
| </span>.field(<span class="string">"body"</span>, <span class="self">self</span>.body()) |
| .finish() |
| } |
| } |
| |
| <span class="kw">impl </span>Parts { |
| <span class="doccomment">/// Creates a new default instance of `Parts` |
| </span><span class="kw">fn </span>new() -> Parts { |
| Parts { |
| status: StatusCode::default(), |
| version: Version::default(), |
| headers: HeaderMap::default(), |
| extensions: Extensions::default(), |
| _priv: (), |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>fmt::Debug <span class="kw">for </span>Parts { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>fmt::Formatter<<span class="lifetime">'_</span>>) -> fmt::Result { |
| f.debug_struct(<span class="string">"Parts"</span>) |
| .field(<span class="string">"status"</span>, <span class="kw-2">&</span><span class="self">self</span>.status) |
| .field(<span class="string">"version"</span>, <span class="kw-2">&</span><span class="self">self</span>.version) |
| .field(<span class="string">"headers"</span>, <span class="kw-2">&</span><span class="self">self</span>.headers) |
| <span class="comment">// omits Extensions because not useful |
| // omits _priv because not useful |
| </span>.finish() |
| } |
| } |
| |
| <span class="kw">impl </span>Builder { |
| <span class="doccomment">/// Creates a new default instance of `Builder` to construct either a |
| /// `Head` or a `Response`. |
| /// |
| /// # Examples |
| /// |
| /// ``` |
| /// # use http::*; |
| /// |
| /// let response = response::Builder::new() |
| /// .status(200) |
| /// .body(()) |
| /// .unwrap(); |
| /// ``` |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>new() -> Builder { |
| Builder::default() |
| } |
| |
| <span class="doccomment">/// Set the HTTP status for this response. |
| /// |
| /// This function will configure the HTTP status code of the `Response` that |
| /// will be returned from `Builder::build`. |
| /// |
| /// By default this is `200`. |
| /// |
| /// # Examples |
| /// |
| /// ``` |
| /// # use http::*; |
| /// |
| /// let response = Response::builder() |
| /// .status(200) |
| /// .body(()) |
| /// .unwrap(); |
| /// ``` |
| </span><span class="kw">pub fn </span>status<T>(<span class="self">self</span>, status: T) -> Builder |
| <span class="kw">where |
| </span>StatusCode: TryFrom<T>, |
| <StatusCode <span class="kw">as </span>TryFrom<T>>::Error: Into<<span class="kw">crate</span>::Error>, |
| { |
| <span class="self">self</span>.and_then(<span class="kw">move </span>|<span class="kw-2">mut </span>head| { |
| head.status = TryFrom::try_from(status).map_err(Into::into)<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(head) |
| }) |
| } |
| |
| <span class="doccomment">/// Set the HTTP version for this response. |
| /// |
| /// This function will configure the HTTP version of the `Response` that |
| /// will be returned from `Builder::build`. |
| /// |
| /// By default this is HTTP/1.1 |
| /// |
| /// # Examples |
| /// |
| /// ``` |
| /// # use http::*; |
| /// |
| /// let response = Response::builder() |
| /// .version(Version::HTTP_2) |
| /// .body(()) |
| /// .unwrap(); |
| /// ``` |
| </span><span class="kw">pub fn </span>version(<span class="self">self</span>, version: Version) -> Builder { |
| <span class="self">self</span>.and_then(<span class="kw">move </span>|<span class="kw-2">mut </span>head| { |
| head.version = version; |
| <span class="prelude-val">Ok</span>(head) |
| }) |
| } |
| |
| <span class="doccomment">/// Appends a header to this response builder. |
| /// |
| /// This function will append the provided key/value as a header to the |
| /// internal `HeaderMap` being constructed. Essentially this is equivalent |
| /// to calling `HeaderMap::append`. |
| /// |
| /// # Examples |
| /// |
| /// ``` |
| /// # use http::*; |
| /// # use http::header::HeaderValue; |
| /// |
| /// let response = Response::builder() |
| /// .header("Content-Type", "text/html") |
| /// .header("X-Custom-Foo", "bar") |
| /// .header("content-length", 0) |
| /// .body(()) |
| /// .unwrap(); |
| /// ``` |
| </span><span class="kw">pub fn </span>header<K, V>(<span class="self">self</span>, key: K, value: V) -> Builder |
| <span class="kw">where |
| </span>HeaderName: TryFrom<K>, |
| <HeaderName <span class="kw">as </span>TryFrom<K>>::Error: Into<<span class="kw">crate</span>::Error>, |
| HeaderValue: TryFrom<V>, |
| <HeaderValue <span class="kw">as </span>TryFrom<V>>::Error: Into<<span class="kw">crate</span>::Error>, |
| { |
| <span class="self">self</span>.and_then(<span class="kw">move </span>|<span class="kw-2">mut </span>head| { |
| <span class="kw">let </span>name = <HeaderName <span class="kw">as </span>TryFrom<K>>::try_from(key).map_err(Into::into)<span class="question-mark">?</span>; |
| <span class="kw">let </span>value = <HeaderValue <span class="kw">as </span>TryFrom<V>>::try_from(value).map_err(Into::into)<span class="question-mark">?</span>; |
| head.headers.append(name, value); |
| <span class="prelude-val">Ok</span>(head) |
| }) |
| } |
| |
| <span class="doccomment">/// Get header on this response builder. |
| /// |
| /// When builder has error returns None. |
| /// |
| /// # Example |
| /// |
| /// ``` |
| /// # use http::Response; |
| /// # use http::header::HeaderValue; |
| /// let res = Response::builder() |
| /// .header("Accept", "text/html") |
| /// .header("X-Custom-Foo", "bar"); |
| /// let headers = res.headers_ref().unwrap(); |
| /// assert_eq!( headers["Accept"], "text/html" ); |
| /// assert_eq!( headers["X-Custom-Foo"], "bar" ); |
| /// ``` |
| </span><span class="kw">pub fn </span>headers_ref(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="kw-2">&</span>HeaderMap<HeaderValue>> { |
| <span class="self">self</span>.inner.as_ref().ok().map(|h| <span class="kw-2">&</span>h.headers) |
| } |
| |
| <span class="doccomment">/// Get header on this response builder. |
| /// when builder has error returns None |
| /// |
| /// # Example |
| /// |
| /// ``` |
| /// # use http::*; |
| /// # use http::header::HeaderValue; |
| /// # use http::response::Builder; |
| /// let mut res = Response::builder(); |
| /// { |
| /// let headers = res.headers_mut().unwrap(); |
| /// headers.insert("Accept", HeaderValue::from_static("text/html")); |
| /// headers.insert("X-Custom-Foo", HeaderValue::from_static("bar")); |
| /// } |
| /// let headers = res.headers_ref().unwrap(); |
| /// assert_eq!( headers["Accept"], "text/html" ); |
| /// assert_eq!( headers["X-Custom-Foo"], "bar" ); |
| /// ``` |
| </span><span class="kw">pub fn </span>headers_mut(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="kw-2">&mut </span>HeaderMap<HeaderValue>> { |
| <span class="self">self</span>.inner.as_mut().ok().map(|h| <span class="kw-2">&mut </span>h.headers) |
| } |
| |
| <span class="doccomment">/// Adds an extension to this builder |
| /// |
| /// # Examples |
| /// |
| /// ``` |
| /// # use http::*; |
| /// |
| /// let response = Response::builder() |
| /// .extension("My Extension") |
| /// .body(()) |
| /// .unwrap(); |
| /// |
| /// assert_eq!(response.extensions().get::<&'static str>(), |
| /// Some(&"My Extension")); |
| /// ``` |
| </span><span class="kw">pub fn </span>extension<T>(<span class="self">self</span>, extension: T) -> Builder |
| <span class="kw">where |
| </span>T: Any + Send + Sync + <span class="lifetime">'static</span>, |
| { |
| <span class="self">self</span>.and_then(<span class="kw">move </span>|<span class="kw-2">mut </span>head| { |
| head.extensions.insert(extension); |
| <span class="prelude-val">Ok</span>(head) |
| }) |
| } |
| |
| <span class="doccomment">/// Get a reference to the extensions for this response builder. |
| /// |
| /// If the builder has an error, this returns `None`. |
| /// |
| /// # Example |
| /// |
| /// ``` |
| /// # use http::Response; |
| /// let res = Response::builder().extension("My Extension").extension(5u32); |
| /// let extensions = res.extensions_ref().unwrap(); |
| /// assert_eq!(extensions.get::<&'static str>(), Some(&"My Extension")); |
| /// assert_eq!(extensions.get::<u32>(), Some(&5u32)); |
| /// ``` |
| </span><span class="kw">pub fn </span>extensions_ref(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="kw-2">&</span>Extensions> { |
| <span class="self">self</span>.inner.as_ref().ok().map(|h| <span class="kw-2">&</span>h.extensions) |
| } |
| |
| <span class="doccomment">/// Get a mutable reference to the extensions for this response builder. |
| /// |
| /// If the builder has an error, this returns `None`. |
| /// |
| /// # Example |
| /// |
| /// ``` |
| /// # use http::Response; |
| /// let mut res = Response::builder().extension("My Extension"); |
| /// let mut extensions = res.extensions_mut().unwrap(); |
| /// assert_eq!(extensions.get::<&'static str>(), Some(&"My Extension")); |
| /// extensions.insert(5u32); |
| /// assert_eq!(extensions.get::<u32>(), Some(&5u32)); |
| /// ``` |
| </span><span class="kw">pub fn </span>extensions_mut(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="kw-2">&mut </span>Extensions> { |
| <span class="self">self</span>.inner.as_mut().ok().map(|h| <span class="kw-2">&mut </span>h.extensions) |
| } |
| |
| <span class="doccomment">/// "Consumes" this builder, using the provided `body` to return a |
| /// constructed `Response`. |
| /// |
| /// # Errors |
| /// |
| /// This function may return an error if any previously configured argument |
| /// failed to parse or get converted to the internal representation. For |
| /// example if an invalid `head` was specified via `header("Foo", |
| /// "Bar\r\n")` the error will be returned when this function is called |
| /// rather than when `header` was called. |
| /// |
| /// # Examples |
| /// |
| /// ``` |
| /// # use http::*; |
| /// |
| /// let response = Response::builder() |
| /// .body(()) |
| /// .unwrap(); |
| /// ``` |
| </span><span class="kw">pub fn </span>body<T>(<span class="self">self</span>, body: T) -> <span class="prelude-ty">Result</span><Response<T>> { |
| <span class="self">self</span>.inner.map(<span class="kw">move </span>|head| { |
| Response { |
| head, |
| body, |
| } |
| }) |
| } |
| |
| <span class="comment">// private |
| |
| </span><span class="kw">fn </span>and_then<F>(<span class="self">self</span>, func: F) -> <span class="self">Self |
| </span><span class="kw">where |
| </span>F: FnOnce(Parts) -> <span class="prelude-ty">Result</span><Parts> |
| { |
| Builder { |
| inner: <span class="self">self</span>.inner.and_then(func), |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>Default <span class="kw">for </span>Builder { |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>default() -> Builder { |
| Builder { |
| inner: <span class="prelude-val">Ok</span>(Parts::new()), |
| } |
| } |
| } |
| |
| <span class="attribute">#[cfg(test)] |
| </span><span class="kw">mod </span>tests { |
| <span class="kw">use super</span>::<span class="kw-2">*</span>; |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>it_can_map_a_body_from_one_type_to_another() { |
| <span class="kw">let </span>response = Response::builder().body(<span class="string">"some string"</span>).unwrap(); |
| <span class="kw">let </span>mapped_response = response.map(|s| { |
| <span class="macro">assert_eq!</span>(s, <span class="string">"some string"</span>); |
| <span class="number">123u32 |
| </span>}); |
| <span class="macro">assert_eq!</span>(mapped_response.body(), <span class="kw-2">&</span><span class="number">123u32</span>); |
| } |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="http" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
