pub struct Request<T> {
    head: Parts,
    body: T,
}
Expand description

Represents an HTTP request.

An HTTP request 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.

Examples

Creating a Request to send

use http::{Request, Response};

let mut request = Request::builder()
    .uri("https://www.rust-lang.org/")
    .header("User-Agent", "my-awesome-agent/1.0");

if needs_awesome_header() {
    request = request.header("Awesome", "yes");
}

let response = send(request.body(()).unwrap());

fn send(req: Request<()>) -> Response<()> {
    // ...
}

Inspecting a request to see what was sent.

use http::{Request, Response, StatusCode};

fn respond_to(req: Request<()>) -> http::Result<Response<()>> {
    if req.uri() != "/awesome-url" {
        return Response::builder()
            .status(StatusCode::NOT_FOUND)
            .body(())
    }

    let has_awesome_header = req.headers().contains_key("Awesome");
    let body = req.body();

    // ...
}

Deserialize a request of bytes via json:

use http::Request;
use serde::de;

fn deserialize<T>(req: Request<Vec<u8>>) -> serde_json::Result<Request<T>>
    where for<'de> T: de::Deserialize<'de>,
{
    let (parts, body) = req.into_parts();
    let body = serde_json::from_slice(&body)?;
    Ok(Request::from_parts(parts, body))
}

Or alternatively, serialize the body of a request to json

use http::Request;
use serde::ser;

fn serialize<T>(req: Request<T>) -> serde_json::Result<Request<Vec<u8>>>
    where T: ser::Serialize,
{
    let (parts, body) = req.into_parts();
    let body = serde_json::to_vec(&body)?;
    Ok(Request::from_parts(parts, body))
}

Fields

head: Partsbody: T

Implementations

Creates a new builder-style object to manufacture a Request

This method returns an instance of Builder which can be used to create a Request.

Examples
let request = Request::builder()
    .method("GET")
    .uri("https://www.rust-lang.org/")
    .header("X-Custom-Foo", "Bar")
    .body(())
    .unwrap();

Creates a new Builder initialized with a GET method and the given URI.

This method returns an instance of Builder which can be used to create a Request.

Example

let request = Request::get("https://www.rust-lang.org/")
    .body(())
    .unwrap();

Creates a new Builder initialized with a PUT method and the given URI.

This method returns an instance of Builder which can be used to create a Request.

Example

let request = Request::put("https://www.rust-lang.org/")
    .body(())
    .unwrap();

Creates a new Builder initialized with a POST method and the given URI.

This method returns an instance of Builder which can be used to create a Request.

Example

let request = Request::post("https://www.rust-lang.org/")
    .body(())
    .unwrap();

Creates a new Builder initialized with a DELETE method and the given URI.

This method returns an instance of Builder which can be used to create a Request.

Example

let request = Request::delete("https://www.rust-lang.org/")
    .body(())
    .unwrap();

Creates a new Builder initialized with an OPTIONS method and the given URI.

This method returns an instance of Builder which can be used to create a Request.

Example

let request = Request::options("https://www.rust-lang.org/")
    .body(())
    .unwrap();

Creates a new Builder initialized with a HEAD method and the given URI.

This method returns an instance of Builder which can be used to create a Request.

Example

let request = Request::head("https://www.rust-lang.org/")
    .body(())
    .unwrap();

Creates a new Builder initialized with a CONNECT method and the given URI.

This method returns an instance of Builder which can be used to create a Request.

Example

let request = Request::connect("https://www.rust-lang.org/")
    .body(())
    .unwrap();

Creates a new Builder initialized with a PATCH method and the given URI.

This method returns an instance of Builder which can be used to create a Request.

Example

let request = Request::patch("https://www.rust-lang.org/")
    .body(())
    .unwrap();

Creates a new Builder initialized with a TRACE method and the given URI.

This method returns an instance of Builder which can be used to create a Request.

Example

let request = Request::trace("https://www.rust-lang.org/")
    .body(())
    .unwrap();

Creates a new blank Request with the body

The component parts of this request will be set to their default, e.g. the GET method, no headers, etc.

Examples
let request = Request::new("hello world");

assert_eq!(*request.method(), Method::GET);
assert_eq!(*request.body(), "hello world");

Creates a new Request with the given components parts and body.

Examples
let request = Request::new("hello world");
let (mut parts, body) = request.into_parts();
parts.method = Method::POST;

let request = Request::from_parts(parts, body);

Returns a reference to the associated HTTP method.

Examples
let request: Request<()> = Request::default();
assert_eq!(*request.method(), Method::GET);

Returns a mutable reference to the associated HTTP method.

Examples
let mut request: Request<()> = Request::default();
*request.method_mut() = Method::PUT;
assert_eq!(*request.method(), Method::PUT);

Returns a reference to the associated URI.

Examples
let request: Request<()> = Request::default();
assert_eq!(*request.uri(), *"/");

Returns a mutable reference to the associated URI.

Examples
let mut request: Request<()> = Request::default();
*request.uri_mut() = "/hello".parse().unwrap();
assert_eq!(*request.uri(), *"/hello");

Returns the associated version.

Examples
let request: Request<()> = Request::default();
assert_eq!(request.version(), Version::HTTP_11);

Returns a mutable reference to the associated version.

Examples
let mut request: Request<()> = Request::default();
*request.version_mut() = Version::HTTP_2;
assert_eq!(request.version(), Version::HTTP_2);

Returns a reference to the associated header field map.

Examples
let request: Request<()> = Request::default();
assert!(request.headers().is_empty());

Returns a mutable reference to the associated header field map.

Examples
let mut request: Request<()> = Request::default();
request.headers_mut().insert(HOST, HeaderValue::from_static("world"));
assert!(!request.headers().is_empty());

Returns a reference to the associated extensions.

Examples
let request: Request<()> = Request::default();
assert!(request.extensions().get::<i32>().is_none());

Returns a mutable reference to the associated extensions.

Examples
let mut request: Request<()> = Request::default();
request.extensions_mut().insert("hello");
assert_eq!(request.extensions().get(), Some(&"hello"));

Returns a reference to the associated HTTP body.

Examples
let request: Request<String> = Request::default();
assert!(request.body().is_empty());

Returns a mutable reference to the associated HTTP body.

Examples
let mut request: Request<String> = Request::default();
request.body_mut().push_str("hello world");
assert!(!request.body().is_empty());

Consumes the request, returning just the body.

Examples
let request = Request::new(10);
let body = request.into_body();
assert_eq!(body, 10);

Consumes the request returning the head and body parts.

Examples
let request = Request::new(());
let (parts, body) = request.into_parts();
assert_eq!(parts.method, Method::GET);

Consumes the request returning a new request with body mapped to the return type of the passed in function.

Examples
let request = Request::builder().body("some string").unwrap();
let mapped_request: Request<&[u8]> = request.map(|b| {
  assert_eq!(b, "some string");
  b.as_bytes()
});
assert_eq!(mapped_request.body(), &"some string".as_bytes());

Trait Implementations

Values yielded by the Body.

The error type this Body might generate.

Attempt to pull out the next data buffer of this stream.

Poll for an optional single HeaderMap of trailers. Read more

Returns true when the end of stream has been reached. Read more

Returns the bounds on the remaining length of the stream. Read more

Returns future that resolves to next data chunk, if any.

Returns future that resolves to trailers, if any.

Maps this body’s data value to a different value.

Maps this body’s error value to a different value.

Turn this body into a boxed trait object.

Turn this body into a boxed trait object that is !Sync.

Formats the value using the given formatter. Read more

Returns the “default value” for a type. Read more

Responses given by the service.

Errors produced by the service.

The future response value.

Returns Poll::Ready(Ok(())) when the service is able to process requests. Read more

Process the request and return the response asynchronously. Read more

Responses given by the service.

Errors produced by the service.

The future response value.

Returns Poll::Ready(Ok(())) when the service is able to process requests. Read more

Process the request and return the response asynchronously. Read more

Responses given by the service.

Errors produced by the service.

The future response value.

Returns Poll::Ready(Ok(())) when the service is able to process requests. Read more

Process the request and return the response asynchronously. Read more

Responses given by the service.

Errors produced by the service.

The future response value.

Returns Poll::Ready(Ok(())) when the service is able to process requests. Read more

Process the request and return the response asynchronously. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more