Book Image

Rust Web Programming - Second Edition

By : Maxwell Flitton
Book Image

Rust Web Programming - Second Edition

By: Maxwell Flitton

Overview of this book

Are safety and high performance a big concern for you while developing web applications? With this practical Rust book, you’ll discover how you can implement Rust on the web to achieve the desired performance and security as you learn techniques and tooling to build fully operational web apps. In this second edition, you’ll get hands-on with implementing emerging Rust web frameworks, including Actix, Rocket, and Hyper. It also features HTTPS configuration on AWS when deploying a web application and introduces you to Terraform for automating the building of web infrastructure on AWS. What’s more, this edition also covers advanced async topics. Built on the Tokio async runtime, this explores TCP and framing, implementing async systems with the actor framework, and queuing tasks on Redis to be consumed by a number of worker nodes. Finally, you’ll go over best practices for packaging Rust servers in distroless Rust Docker images with database drivers, so your servers are a total size of 50Mb each. By the end of this book, you’ll have confidence in your skills to build robust, functional, and scalable web applications from scratch.
Table of Contents (27 chapters)
Free Chapter
Part 1:Getting Started with Rust Web Development
Part 2:Processing Data and Managing Displays
Part 3:Data Persistence
Part 4:Testing and Deployment
Part 5:Making Our Projects Flexible
Part 6:Exploring Protocol Programming and Async Concepts with Low-Level Network Applications

Building an HTTP frame on top of TCP

Before we explored the Tokio framework in this book, we used HTTP to send and receive data to and from servers. The HTTP protocol is essentially built on top of TCP. In this section, while we will create an HTTP frame, we will not mimic the HTTP protocol completely. Instead, to prevent excessive code, we will create a basic HTTP frame to understand the mechanisms utilized when creating an HTTP frame. It also must be stressed that this is for educational purposes. TCP is good for our protocols, but if you want to use HTTP handlers, it is quicker, safer, and less error-prone to use out-of-the-box HTTP handlers such as Hyper. We will cover how to use Hyper HTTP handlers with Tokio in the next chapter.

When it comes to an HTTP request, a request generally has a header and a body. When we send over a request, the header will tell us what method is being used and the URL associated with the request. To define our HTTP frame, we need the same structs...