[][src]Struct reqwest::RequestBuilder

#[must_use = "RequestBuilder does nothing until you 'send' it"]pub struct RequestBuilder { /* fields omitted */ }

A builder to construct the properties of a Request.

To construct a RequestBuilder, refer to the Client documentation.


impl RequestBuilder[src]

pub fn header<K, V>(self, key: K, value: V) -> RequestBuilder where
    HeaderName: TryFrom<K>,
    <HeaderName as TryFrom<K>>::Error: Into<Error>,
    HeaderValue: TryFrom<V>,
    <HeaderValue as TryFrom<V>>::Error: Into<Error>, 

Add a Header to this Request.

pub fn headers(self, headers: HeaderMap) -> RequestBuilder[src]

Add a set of Headers to the existing ones on this Request.

The headers will be merged in to any already set.

pub fn basic_auth<U, P>(
    username: U,
    password: Option<P>
) -> RequestBuilder where
    U: Display,
    P: Display

Enable HTTP basic authentication.

pub fn bearer_auth<T>(self, token: T) -> RequestBuilder where
    T: Display

Enable HTTP bearer authentication.

pub fn body<T: Into<Body>>(self, body: T) -> RequestBuilder[src]

Set the request body.

pub fn timeout(self, timeout: Duration) -> RequestBuilder[src]

Enables a request timeout.

The timeout is applied from when the request starts connecting until the response body has finished. It affects only this request and overrides the timeout configured using ClientBuilder::timeout().

pub fn multipart(self, multipart: Form) -> RequestBuilder[src]

Sends a multipart/form-data body.

let client = reqwest::Client::new();
let form = reqwest::multipart::Form::new()
    .text("key3", "value3")
    .text("key4", "value4");

let response = client.post("your url")

pub fn query<T: Serialize + ?Sized>(self, query: &T) -> RequestBuilder[src]

Modify the query string of the URL.

Modifies the URL of this request, adding the parameters provided. This method appends and does not overwrite. This means that it can be called multiple times and that existing query parameters are not overwritten if the same key is used. The key will simply show up twice in the query string. Calling .query([("foo", "a"), ("foo", "b")]) gives "foo=a&foo=b".


This method does not support serializing a single key-value pair. Instead of using .query(("key", "val")), use a sequence, such as .query(&[("key", "val")]). It's also possible to serialize structs and maps into a key-value pair.


This method will fail if the object you provide cannot be serialized into a query string.

pub fn form<T: Serialize + ?Sized>(self, form: &T) -> RequestBuilder[src]

Send a form body.

pub fn json<T: Serialize + ?Sized>(self, json: &T) -> RequestBuilder[src]

Send a JSON body.


This requires the optional json feature enabled.


Serialization can fail if T's implementation of Serialize decides to fail, or if T contains a map with non-string keys.

pub fn fetch_mode_no_cors(self) -> RequestBuilder[src]

Disable CORS on fetching the request.


This option is only effective with WebAssembly target.

The request mode will be set to 'no-cors'.

pub fn build(self) -> Result<Request>[src]

Build a Request, which can be inspected, modified and executed with Client::execute().

pub fn send(self) -> impl Future<Output = Result<Response, Error>>[src]

Constructs the Request and sends it to the target URL, returning a future Response.


This method fails if there was an error while sending request, redirect loop was detected or redirect limit was exhausted.


let response = reqwest::Client::new()

pub fn try_clone(&self) -> Option<RequestBuilder>[src]

Attempt to clone the RequestBuilder.

None is returned if the RequestBuilder can not be cloned, i.e. if the request body is a stream.


let client = reqwest::Client::new();
let builder = client.post("http://httpbin.org/post")
    .body("from a &str!");
let clone = builder.try_clone();

Trait Implementations

impl Debug for RequestBuilder[src]

Auto Trait Implementations

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized

impl<T> Borrow<T> for T where
    T: ?Sized

impl<T> BorrowMut<T> for T where
    T: ?Sized

impl<T> From<T> for T[src]

impl<T> Instrument for T[src]

impl<T> Instrument for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

impl<V, T> VZip<V> for T where
    V: MultiLane<T>,