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

Handling HTTP requests using Hyper

When it comes to building our HTTP server, we will implement all the server logic in the src/ file. First, we import what we need with the following code:

use tokio::sync::{mpsc, mpsc::Sender};
use hyper::{Body, Request, Response, Server};
use hyper::body;
use hyper::service::{make_service_fn, service_fn};
use serde_json;
use serde::Deserialize;
use std::net::SocketAddr;

At this stage in the book, these imports should not be confusing to you. Even though we have imported from the hyper module, the imports are self-explanatory. We will extract data from a request, create a service to process our request, and create an HTTP server to listen to incoming requests.

We will also need to utilize the actors that we have created. Our actors can be imported using the following code:

mod actors;
use actors::state::StateActor;
use actors::runner::RunnerActor;
use actors::messages::StateActorMessage;
use actors::messages::MessageType;