Book Image

The Complete Rust Programming Reference Guide

By : Rahul Sharma, Vesa Kaihlavirta, Claus Matzinger
Book Image

The Complete Rust Programming Reference Guide

By: Rahul Sharma, Vesa Kaihlavirta, Claus Matzinger

Overview of this book

Rust is a powerful language with a rare combination of safety, speed, and zero-cost abstractions. This Learning Path is filled with clear and simple explanations of its features along with real-world examples, demonstrating how you can build robust, scalable, and reliable programs. You’ll get started with an introduction to Rust data structures, algorithms, and essential language constructs. Next, you will understand how to store data using linked lists, arrays, stacks, and queues. You’ll also learn to implement sorting and searching algorithms, such as Brute Force algorithms, Greedy algorithms, Dynamic Programming, and Backtracking. As you progress, you’ll pick up on using Rust for systems programming, network programming, and the web. You’ll then move on to discover a variety of techniques, right from writing memory-safe code, to building idiomatic Rust libraries, and even advanced macros. By the end of this Learning Path, you’ll be able to implement Rust for enterprise projects, writing better tests and documentation, designing for performance, and creating idiomatic Rust code. This Learning Path includes content from the following Packt products: • Mastering Rust - Second Edition by Rahul Sharma and Vesa Kaihlavirta • Hands-On Data Structures and Algorithms with Rust by Claus Matzinger
Table of Contents (29 chapters)
Title Page
Copyright
About Packt
Contributors
Preface
Index

Actix-web basics


The Actix-web framework builds upon the actor model that's implemented by the actix crate, which we already covered in Chapter 7, Advanced Concepts. Actix-web advertises itself as a small, fast, and pragmatic HTTP web framework. It's primarily an asynchronous framework that relies internally on tokio and the futures crate but also provides a synchronous API and both of these APIs can be composed together seamlessly.

The entry point of any web application written using actix-web is the App struct. On an App instance, we can configure various route handlers and middlewares. We can also initialize our App with any state that we need to maintain across a request response. The route handlers that are provided on App implement the Handler trait and are simply functions that map a request to a response. They can also include request filters, which can forbid access to a particular route based on a predicate.

Actix-web internally spawns a number of worker threads, each with its own...