Book Image

Hands-On Microservices with Rust

By : Denis Kolodin
Book Image

Hands-On Microservices with Rust

By: Denis Kolodin

Overview of this book

Microservice architecture is sweeping the world as the de facto pattern for building web-based applications. Rust is a language particularly well-suited for building microservices. It is a new system programming language that offers a practical and safe alternative to C. This book describes web development using the Rust programming language and will get you up and running with modern web frameworks and crates with examples of RESTful microservices creation. You will deep dive into Reactive programming, and asynchronous programming, and split your web application into a set of concurrent actors. The book provides several HTTP-handling examples with manageable memory allocations. You will walk through stateless high-performance microservices, which are ideally suitable for computation or caching tasks, and look at stateful microservices, which are filled with persistent data and database interactions. As we move along, you will learn how to use Rust macros to describe business or protocol entities of our application and compile them into native structs, which will be performed at full speed with the help of the server's CPU. Finally, you will be taken through examples of how to test and debug microservices and pack them into a tiny monolithic binary or put them into a container and deploy them to modern cloud platforms such as AWS.
Table of Contents (19 chapters)

Interaction to Database with Object-Relational Mapping

In this chapter, we will continue to interact with databases, but this time we will explore object-relational mapping (ORM) using the diesel crate.  This crate helps with generating Rust types that represent tables and records in SQL databases. ORM allows you to use native data structs in code and maps records and database tables to them. It's useful because the compiler takes care of matching types of data columns in a database and structs in source code.

After reading this chapter you will be familiar with the following:

  • Using the diesel crate with r2d2 pools
  • Generating and applying migrations
  • Accessing data with ORM types