Book Image

Network Programming with Rust

By : Abhishek Chanda
Book Image

Network Programming with Rust

By: Abhishek Chanda

Overview of this book

Rust is low-level enough to provide fine-grained control over memory while providing safety through compile-time validation. This makes it uniquely suitable for writing low-level networking applications. This book is divided into three main parts that will take you on an exciting journey of building a fully functional web server. The book starts with a solid introduction to Rust and essential networking concepts. This will lay a foundation for, and set the tone of, the entire book. In the second part, we will take an in-depth look at using Rust for networking software. From client-server networking using sockets to IPv4/v6, DNS, TCP, UDP, you will also learn about serializing and deserializing data using serde. The book shows how to communicate with REST servers over HTTP. The final part of the book discusses asynchronous network programming using the Tokio stack. Given the importance of security for modern systems, you will see how Rust supports common primitives such as TLS and public-key cryptography. After reading this book, you will be more than confident enough to use Rust to build effective networking software
Table of Contents (11 chapters)

Introducing reqwest

So far, we have only talked about writing servers and used curl to access those. Sometimes, programmatically accessing a server becomes a necessity. In this section, we will discuss the reqwest crate and look at how to use it; this borrows heavily from the requests library in Python. Thus, it is very easy to set up and use, starting first with the project setup:

$ cargo new --bin reqwest-example

The next step for our demo is to include our dependencies. Our Cargo config should look like this:

name = "reqwest-example"
version = "0.1.0"
authors = ["Foo<[email protected]>"]

reqwest = "0.8.1"
serde_json = "1.0.6"
serde = "1.0.21"
serde_derive = "1.0.21"

Here, we will use Serde to serialize and deserialize our data to JSON. Very conveniently, we will use the Rocket server we wrote...