[−][src]Struct surf::Request
An HTTP request, returns a Response
.
Methods
impl Request<NativeClient>
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pub fn new(method: Method, url: Url) -> Self
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Create a new instance.
This method is particularly useful when input URLs might be passed by third parties, and you don't want to panic if they're malformed. If URLs are statically encoded, it might be easier to use one of the shorthand methods instead.
Examples
use surf::{http, url}; let method = http::Method::GET; let url = url::Url::parse("https://httpbin.org/get")?; let string = surf::Request::new(method, url).recv_string().await?;
impl<C: HttpClient> Request<C>
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pub fn middleware(self, mw: impl Middleware<C>) -> Self
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Push middleware onto the middleware stack.
See the middleware submodule for more information on middleware.
Examples
let res = surf::get("https://httpbin.org/get") .middleware(surf::middleware::logger::new()) .await?;
pub fn query<T: DeserializeOwned>(&self) -> Result<T, Exception>
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Get the URL querystring.
Examples
#[derive(Serialize, Deserialize)] struct Index { page: u32 } let req = surf::get("https://httpbin.org/get?page=2"); let Index { page } = req.query()?; assert_eq!(page, 2);
pub fn set_query(self, query: &impl Serialize) -> Result<Self, Error>
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Set the URL querystring.
Examples
#[derive(Serialize, Deserialize)] struct Index { page: u32 } let query = Index { page: 2 }; let req = surf::get("https://httpbin.org/get").set_query(&query)?; assert_eq!(req.url().query(), Some("page=2"));
pub fn header(&self, key: &'static str) -> Option<&str>
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Get an HTTP header.
Examples
let req = surf::get("https://httpbin.org/get") .set_header("X-Requested-With", "surf"); assert_eq!(req.header("X-Requested-With"), Some("surf"));
pub fn set_header(self, key: &'static str, value: impl AsRef<str>) -> Self
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Set an HTTP header.
Examples
let req = surf::get("https://httpbin.org/get") .set_header("X-Requested-With", "surf"); assert_eq!(req.header("X-Requested-With"), Some("surf"));
pub fn headers<'a>(&'a mut self) -> Headers<'a>
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Get all headers.
Examples
let mut req = surf::get("https://httpbin.org/get") .set_header("X-Requested-With", "surf"); for (name, value) in req.headers() { println!("{}: {}", name, value); }
pub fn method(&self) -> &Method
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Get the request HTTP method.
Examples
use surf::http; let req = surf::get("https://httpbin.org/get"); assert_eq!(req.method(), http::Method::GET);
pub fn url(&self) -> &Url
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Get the request url.
Examples
use surf::url::Url; let req = surf::get("https://httpbin.org/get"); assert_eq!(req.url(), &Url::parse("https://httpbin.org/get")?);
pub fn mime(&self) -> Option<Mime>
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Get the request MIME.
Gets the Content-Type
header and parses it to a Mime
type.
Panics
This method will panic if an invalid MIME type was set as a header. Use the set_header
method to bypass any checks.
Examples
use surf::mime; let req = surf::post("https://httpbin.org/get") .set_mime(mime::TEXT_CSS); assert_eq!(req.mime(), Some(mime::TEXT_CSS));
pub fn set_mime(self, mime: Mime) -> Self
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Set the request MIME.
Examples
use surf::mime; let req = surf::post("https://httpbin.org/get") .set_mime(mime::TEXT_CSS); assert_eq!(req.mime(), Some(mime::TEXT_CSS));
pub fn body<R>(self, reader: R) -> Self where
R: AsyncRead + Unpin + Send + 'static,
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R: AsyncRead + Unpin + Send + 'static,
Pass an AsyncRead
stream as the request body.
Mime
The encoding is set to application/octet-stream
.
Examples
let reader = surf::get("https://httpbin.org/get").await?; let uri = "https://httpbin.org/post"; let res = surf::post(uri).body(reader).await?; assert_eq!(res.status(), 200);
pub fn body_json(self, json: &impl Serialize) -> Result<Self>
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Pass JSON as the request body.
Mime
The encoding is set to application/json
.
Errors
This method will return an error if the provided data could not be serialized to JSON.
Examples
let uri = "https://httpbin.org/post"; let data = serde_json::json!({ "name": "chashu" }); let res = surf::post(uri).body_json(&data)?.await?; assert_eq!(res.status(), 200);
pub fn body_string(self, string: String) -> Self
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Pass a string as the request body.
Mime
The encoding is set to text/plain; charset=utf-8
.
Examples
let uri = "https://httpbin.org/post"; let data = "hello world".to_string(); let res = surf::post(uri).body_string(data).await?; assert_eq!(res.status(), 200);
pub fn body_bytes(self, bytes: impl AsRef<[u8]>) -> Self
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Pass bytes as the request body.
Mime
The encoding is set to application/octet-stream
.
Examples
let uri = "https://httpbin.org/post"; let data = b"hello world"; let res = surf::post(uri).body_bytes(data).await?; assert_eq!(res.status(), 200);
pub fn body_file(self, path: impl AsRef<Path>) -> Result<Self>
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Pass a file as the request body.
Mime
The encoding is set based on the file extension using mime_guess
if the operation was
successful. If path
has no extension, or its extension has no known MIME type mapping,
then None
is returned.
Errors
This method will return an error if the file couldn't be read.
Examples
let res = surf::post("https://httpbin.org/post") .body_file("README.md")? .await?; assert_eq!(res.status(), 200);
pub fn body_form(self, form: &impl Serialize) -> Result<Self, Error>
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Pass a form as the request body.
Mime
The encoding is set to application/x-www-form-urlencoded
.
Errors
An error will be returned if the encoding failed.
Examples
#[derive(Serialize, Deserialize)] struct Body { apples: u32 } let res = surf::post("https://httpbin.org/post") .body_form(&Body { apples: 7 })? .await?; assert_eq!(res.status(), 200);
pub async fn recv_bytes(self) -> Result<Vec<u8>, Exception>
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Submit the request and get the response body as bytes.
Examples
let bytes = surf::get("https://httpbin.org/get").recv_bytes().await?; assert!(bytes.len() > 0);
pub async fn recv_string(self) -> Result<String, Exception>
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Submit the request and get the response body as a string.
Examples
let string = surf::get("https://httpbin.org/get").recv_string().await?; assert!(string.len() > 0);
pub async fn recv_json<T: DeserializeOwned>(self) -> Result<T, Exception>
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Submit the request and decode the response body from json into a struct.
Examples
#[derive(Deserialize, Serialize)] struct Ip { ip: String } let uri = "https://api.ipify.org?format=json"; let Ip { ip } = surf::get(uri).recv_json().await?; assert!(ip.len() > 10);
pub async fn recv_form<T: DeserializeOwned>(self) -> Result<T, Exception>
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Submit the request and decode the response body from form encoding into a struct.
Errors
Any I/O error encountered while reading the body is immediately returned
as an Err
.
If the body cannot be interpreted as valid json for the target type T
,
an Err
is returned.
Examples
#[derive(Deserialize, Serialize)] struct Body { apples: u32 } let url = "https://api.example.com/v1/response"; let Body { apples } = surf::get(url).recv_form().await?;
Trait Implementations
impl<C: HttpClient> Into<Request<Body>> for Request<C>
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impl<C: HttpClient> Debug for Request<C>
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impl<R: AsyncRead + Unpin + Send + 'static> TryFrom<Request<Box<R>>> for Request<NativeClient>
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type Error = Error
The type returned in the event of a conversion error.
fn try_from(http_request: Request<Box<R>>) -> Result<Self>
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Converts an http::Request
to a surf::Request
.
impl<C: HttpClient> Future for Request<C>
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Auto Trait Implementations
impl<C> !Sync for Request<C>
impl<C> Send for Request<C>
impl<C> Unpin for Request<C>
impl<C> !RefUnwindSafe for Request<C>
impl<C> !UnwindSafe for Request<C>
Blanket Implementations
impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> FutureExt for T where
T: Future + ?Sized,
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T: Future + ?Sized,
fn map<U, F>(self, f: F) -> Map<Self, F> where
F: FnOnce(Self::Output) -> U,
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F: FnOnce(Self::Output) -> U,
Map this future's output to a different type, returning a new future of the resulting type. Read more
fn then<Fut, F>(self, f: F) -> Then<Self, Fut, F> where
F: FnOnce(Self::Output) -> Fut,
Fut: Future,
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F: FnOnce(Self::Output) -> Fut,
Fut: Future,
Chain on a computation for when a future finished, passing the result of the future to the provided closure f
. Read more
fn left_future<B>(self) -> Either<Self, B> where
B: Future<Output = Self::Output>,
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B: Future<Output = Self::Output>,
Wrap this future in an Either
future, making it the left-hand variant of that Either
. Read more
fn right_future<A>(self) -> Either<A, Self> where
A: Future<Output = Self::Output>,
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A: Future<Output = Self::Output>,
Wrap this future in an Either
future, making it the right-hand variant of that Either
. Read more
fn into_stream(self) -> IntoStream<Self>
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Convert this future into a single element stream. Read more
fn flatten(self) -> Flatten<Self> where
Self::Output: Future,
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Self::Output: Future,
Flatten the execution of this future when the successful result of this future is itself another future. Read more
fn flatten_stream(self) -> FlattenStream<Self> where
Self::Output: Stream,
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Self::Output: Stream,
Flatten the execution of this future when the successful result of this future is a stream. Read more
fn fuse(self) -> Fuse<Self>
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Fuse a future such that poll
will never again be called once it has completed. This method can be used to turn any Future
into a FusedFuture
. Read more
fn inspect<F>(self, f: F) -> Inspect<Self, F> where
F: FnOnce(&Self::Output),
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F: FnOnce(&Self::Output),
Do something with the output of a future before passing it on. Read more
fn catch_unwind(self) -> CatchUnwind<Self> where
Self: UnwindSafe,
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Self: UnwindSafe,
Catches unwinding panics while polling the future. Read more
fn shared(self) -> Shared<Self> where
Self::Output: Clone,
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Self::Output: Clone,
Create a cloneable handle to this future where all handles will resolve to the same result. Read more
fn remote_handle(self) -> (Remote<Self>, RemoteHandle<Self::Output>)
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Turn this future into a future that yields ()
on completion and sends its output to another future on a separate task. Read more
fn boxed<'a>(self) -> Pin<Box<dyn Future<Output = Self::Output> + 'a + Send>> where
Self: Send + 'a,
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Self: Send + 'a,
Wrap the future in a Box, pinning it.
fn boxed_local<'a>(self) -> Pin<Box<dyn Future<Output = Self::Output> + 'a>> where
Self: 'a,
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Self: 'a,
Wrap the future in a Box, pinning it. Read more
fn unit_error(self) -> UnitError<Self>
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Turns a Future<Output = T>
into a TryFuture<Ok = T, Error = ()
>. Read more
fn never_error(self) -> NeverError<Self>
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Turns a Future<Output = T>
into a TryFuture<Ok = T, Error = Never
>. Read more
fn poll_unpin(&mut self, cx: &mut Context) -> Poll<Self::Output> where
Self: Unpin,
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Self: Unpin,
A convenience for calling Future::poll
on Unpin
future types.
impl<Fut> TryFutureExt for Fut where
Fut: TryFuture + ?Sized,
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Fut: TryFuture + ?Sized,
fn flatten_sink<Item>(self) -> FlattenSink<Self, Self::Ok> where
Self::Ok: Sink<Item>,
<Self::Ok as Sink<Item>>::Error == Self::Error,
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Self::Ok: Sink<Item>,
<Self::Ok as Sink<Item>>::Error == Self::Error,
Flattens the execution of this future when the successful result of this future is a [Sink
]. Read more
fn map_ok<T, F>(self, f: F) -> MapOk<Self, F> where
F: FnOnce(Self::Ok) -> T,
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F: FnOnce(Self::Ok) -> T,
Maps this future's success value to a different value. Read more
fn map_err<E, F>(self, f: F) -> MapErr<Self, F> where
F: FnOnce(Self::Error) -> E,
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F: FnOnce(Self::Error) -> E,
Maps this future's error value to a different value. Read more
fn err_into<E>(self) -> ErrInto<Self, E> where
Self::Error: Into<E>,
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Self::Error: Into<E>,
Maps this future's Error
to a new error type using the Into
trait. Read more
fn and_then<Fut, F>(self, f: F) -> AndThen<Self, Fut, F> where
F: FnOnce(Self::Ok) -> Fut,
Fut: TryFuture<Error = Self::Error>,
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F: FnOnce(Self::Ok) -> Fut,
Fut: TryFuture<Error = Self::Error>,
Executes another future after this one resolves successfully. The success value is passed to a closure to create this subsequent future. Read more
fn or_else<Fut, F>(self, f: F) -> OrElse<Self, Fut, F> where
F: FnOnce(Self::Error) -> Fut,
Fut: TryFuture<Ok = Self::Ok>,
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F: FnOnce(Self::Error) -> Fut,
Fut: TryFuture<Ok = Self::Ok>,
Executes another future if this one resolves to an error. The error value is passed to a closure to create this subsequent future. Read more
fn inspect_ok<F>(self, f: F) -> InspectOk<Self, F> where
F: FnOnce(&Self::Ok),
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F: FnOnce(&Self::Ok),
Do something with the success value of a future before passing it on. Read more
fn inspect_err<F>(self, f: F) -> InspectErr<Self, F> where
F: FnOnce(&Self::Error),
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F: FnOnce(&Self::Error),
Do something with the error value of a future before passing it on. Read more
fn try_flatten_stream(self) -> TryFlattenStream<Self> where
Self::Ok: TryStream,
<Self::Ok as TryStream>::Error == Self::Error,
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Self::Ok: TryStream,
<Self::Ok as TryStream>::Error == Self::Error,
Flatten the execution of this future when the successful result of this future is a stream. Read more
fn unwrap_or_else<F>(self, f: F) -> UnwrapOrElse<Self, F> where
F: FnOnce(Self::Error) -> Self::Ok,
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F: FnOnce(Self::Error) -> Self::Ok,
Unwraps this future's ouput, producing a future with this future's Ok
type as its Output
type. Read more
fn compat(self) -> Compat<Self> where
Self: Unpin,
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Self: Unpin,
Wraps a [TryFuture
] into a future compatable with libraries using futures 0.1 future definitons. Requires the compat
feature to enable. Read more
fn into_future(self) -> IntoFuture<Self>
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Wraps a [TryFuture
] into a type that implements Future
. Read more
fn try_poll_unpin(
&mut self,
cx: &mut Context
) -> Poll<Result<Self::Ok, Self::Error>> where
Self: Unpin,
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&mut self,
cx: &mut Context
) -> Poll<Result<Self::Ok, Self::Error>> where
Self: Unpin,
A convenience method for calling [TryFuture::try_poll
] on [Unpin
] future types. Read more
impl<F, T, E> TryFuture for F where
F: Future<Output = Result<T, E>> + ?Sized,
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F: Future<Output = Result<T, E>> + ?Sized,