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Actix Web is a powerful, pragmatic, and extremely fast web framework for Rust.

Examples

use actix_web::{get, web, App, HttpServer, Responder};

#[get("/hello/{name}")]
async fn greet(name: web::Path<String>) -> impl Responder {
    format!("Hello {}!", name)
}

#[actix_web::main] // or #[tokio::main]
async fn main() -> std::io::Result<()> {
    HttpServer::new(|| {
        App::new().service(greet)
    })
    .bind(("127.0.0.1", 8080))?
    .run()
    .await
}

Documentation & Community Resources

In addition to this API documentation, several other resources are available:

To get started navigating the API docs, you may consider looking at the following pages first:

  • App: This struct represents an Actix Web application and is used to configure routes and other common application settings.

  • HttpServer: This struct represents an HTTP server instance and is used to instantiate and configure servers.

  • web: This module provides essential types for route registration as well as common utilities for request handlers.

  • HttpRequest and HttpResponse: These structs represent HTTP requests and responses and expose methods for creating, inspecting, and otherwise utilizing them.

Features

  • Supports HTTP/1.x and HTTP/2
  • Streaming and pipelining
  • Powerful request routing with optional macros
  • Full Tokio compatibility
  • Keep-alive and slow requests handling
  • Client/server WebSockets support
  • Transparent content compression/decompression (br, gzip, deflate, zstd)
  • Multipart streams
  • Static assets
  • SSL support using OpenSSL or Rustls
  • Middlewares (Logger, Session, CORS, etc)
  • Integrates with the awc HTTP client
  • Runs on stable Rust 1.54+

Crate Features

  • cookies - cookies support (enabled by default)
  • macros - routing and runtime macros (enabled by default)
  • compress-brotli - brotli content encoding compression support (enabled by default)
  • compress-gzip - gzip and deflate content encoding compression support (enabled by default)
  • compress-zstd - zstd content encoding compression support (enabled by default)
  • openssl - HTTPS support via openssl crate, supports HTTP/2
  • rustls - HTTPS support via rustls crate, supports HTTP/2
  • secure-cookies - secure cookies support

Modules

Traits and structures to aid consuming and writing HTTP payloads.
HTTP cookie parsing and cookie jar management.
Lower-level types and re-exports.
Error and Result module
Route guards.
Various HTTP related types.
A collection of common middleware.
A selection of re-exports from tokio and actix-rt.
Various helpers for Actix applications to use during testing.
Essentials helper functions and types for application registration.

Macros

Macro to help register different types of services at the same time.

Structs

The top-level builder for an Actix Web application.
Allows overriding status code and headers for a Responder.
General purpose Actix Web error.
An incoming request.
An outgoing response.
An HTTP response builder.
An HTTP Server.
A collection of Routes that respond to the same path pattern.
A request handler with guards.
A collection of Routes, Resources, or other services that share a common path prefix.

Enums

Combines two extractor or responder types into a single type.

Traits

A type that implements FromRequest is called an extractor and can extract data from the request. Some types that implement this trait are: Json, Header, and Path.
The interface for request handlers.
Trait that implements general purpose operations on HTTP messages.
Trait implemented by types that can be converted to an HTTP response.
Errors that can generate responses.

Type Definitions

A convenience Result for Actix Web operations.

Attribute Macros

Creates route handler with actix_web::guard::Connect.
Creates route handler with actix_web::guard::Delete.
Creates route handler with actix_web::guard::Get.
Creates route handler with actix_web::guard::Head.
Marks async main function as the Actix Web system entry-point.
Creates route handler with actix_web::guard::Options.
Creates route handler with actix_web::guard::Patch.
Creates route handler with actix_web::guard::Post.
Creates route handler with actix_web::guard::Put.
Creates resource handler, allowing multiple HTTP method guards.
Creates resource handler, allowing multiple HTTP methods and paths.
Marks async test functions to use the actix system entry-point.
Creates route handler with actix_web::guard::Trace.