Cookies: Actix Web Documentation

# Cookies

Cookies are used to store session identifiers or user preferences. Actix Web allows you to read cookies easily from incoming requests.

#Accessing Cookies

You can access cookies by extracting the HttpRequest and calling the .cookie() method.

code_blocksrust

use actix_web::{get, HttpRequest, HttpResponse};

#[get("/")]
async fn index(req: HttpRequest) -> HttpResponse {
    if let Some(cookie) = req.cookie("session_id") {
        HttpResponse::Ok().body(format!("Your session: {}", cookie.value()))
    } else {
        HttpResponse::Unauthorized().body("No session found")
    }
}

Actix Web uses the cookie crate under the hood, so you have access to a robust API for parsing and verifying cookies.

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Reference Implementation

The following code snippet demonstrates the authoritative pattern for this documentation.

src/main.rs

Edition 2024

1use actix_web::{get, HttpRequest, App, HttpServer, Responder};
2 
3#[get("/auth-check")]
4async fn auth_check(req: HttpRequest) -> impl Responder {
5    if req.cookie("auth_token").is_some() {
6        "Authenticated!"
7    } else {
8        "Please log in."
9    }
10}
11 
12#[actix_web::main]
13async fn main() -> std::io::Result<()> {
14    HttpServer::new(|| App::new().service(auth_check))
15        .bind(("127.0.0.1", 8080))?
16        .run()
17        .await
18}

Cookies

#Accessing Cookies

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Reference Implementation

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