Struct actix_web::Query

pub struct Query<T>(_);

Extract typed information from from the request's query.

Example

#[macro_use] extern crate serde_derive;
use actix_web::{App, Query, http};

#[derive(Deserialize)]
struct Info {
    username: String,
}

// use `with` extractor for query info
// this handler get called only if request's query contains `username` field
fn index(info: Query<Info>) -> String {
    format!("Welcome {}!", info.username)
}

fn main() {
    let app = App::new().resource(
       "/index.html",
       |r| r.method(http::Method::GET).with(index)); // <- use `with` extractor
}

Methods

impl<T> Query<T>

pub fn into_inner(self) -> T

Deconstruct to a inner value

Trait Implementations

impl<T> Deref for Query<T>

type Target = T

The resulting type after dereferencing.

Important traits for &'a mut W

impl<'a, W> Write for &'a mut W where
    W: Write + ?Sized, impl<'a, R> Read for &'a mut R where
    R: Read + ?Sized, impl<'a, I> Iterator for &'a mut I where
    I: Iterator + ?Sized,  type Item = <I as Iterator>::Item;

fn deref(&self) -> &T

Dereferences the value.

impl<T> DerefMut for Query<T>

Important traits for &'a mut W

impl<'a, W> Write for &'a mut W where
    W: Write + ?Sized, impl<'a, R> Read for &'a mut R where
    R: Read + ?Sized, impl<'a, I> Iterator for &'a mut I where
    I: Iterator + ?Sized,  type Item = <I as Iterator>::Item;

fn deref_mut(&mut self) -> &mut T

Mutably dereferences the value.

impl<T, S> FromRequest<S> for Query<T> where
    T: DeserializeOwned, 

type Config = ()

Configuration for conversion process

type Result = Result<Self, Error>

Future that resolves to a Self

fn from_request(req: &HttpRequest<S>, _: &Self::Config) -> Self::Result

Convert request to a Self

fn extract(req: &HttpRequest<S>) -> Self::Result

Convert request to a Self