How to Build REST APIs with Actix-Web in Rust
This tutorial explains how to build a REST API using Actix-Web in Rust, covering routing, handler functions, serialization, and middleware setup for creating efficient and type-safe web services.
Background
Rust is a systems programming language focused on performance, safety (especially memory safety without a garbage collector), and concurrency. It has gained popularity for building reliable software, particularly in infrastructure, embedded systems, and increasingly in web development.
Actix-Web is a high-performance, actor-model-based web framework for Rust, often used to build REST APIs. It is known for being one of the fastest web frameworks available, comparable to C++ solutions.
REST (Representational State Transfer) APIs are a common way for different software systems to communicate over HTTP, following stateless, resource-based conventions (like GET, POST, PUT, DELETE).
This type of tutorial is aimed at developers who already know a bit of Rust and want to learn how to use Actix-Web specifically for building APIs. It would cover setting up routes, handling requests/responses, parsing JSON, and managing state—basic but essential patterns for any Rust backend developer.