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

Testing Our Application Endpoints and Components

Our to-do Rust application now fully works. We are happy with our first version as it manages authentication, different users, and their to-do lists, and logs our processes for inspection. However, a web developer’s job is never done.

While we have now come to the end of adding features to our application, we know that the journey does not stop here. In future iterations beyond this book, we may want to add teams, new statuses, multiple lists per user, and so on. However, as we add these features, we must ensure that our old application’s behavior stays the same unless we actively change it. This is done by building tests.

In this chapter, we’ll build tests that check our existing behavior, laying down traps that will throw errors that report to us if the app’s behavior changes without us actively changing it. This prevents us from breaking the application and pushing it to a server after adding a new...