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)

Parsing using Pest

We studied different parsing techniques in Chapter 4, Data serialization, De-Serialization, and Parsing. We looked at using parser combinators using Nom, building a large parser from smaller parts. There is a completely different way of solving the same problem of parsing textual data, using Parsing Expression Grammar (PEG). A PEG is a formal grammar that defines how a parser should behave. Thus, it includes a finite set of rules, from basic tokens to more complex structures. A library that can take in such grammar to produce a functional parser is Pest. Let's look at an example of rewriting our HTTP parsing example from Chapter 4, Data Serialization, De-Serialization, and Parsing, using Pest. Start with the Cargo project set up:

$ cargo new --bin pest-example

Like always, we will need to declare dependency on Pest components like this:

name =...