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)

What is a reactive microservice?

A microservices architecture implies the presence of multiple parts in an application. In the past, most applications were monoliths, with all of the parts contained in a single code base. The microservices approach gives us the opportunity to split a code base between multiple teams and developers, to have an individual life cycle for every microservice, and for parts to interact with a common protocol.

Does this mean that your application will be free from all of the flaws of a monolithic application? No. You can write microservices that are so closely related to each other that you can't even properly update them.

How is this possible? Imagine that you have a microservice that has to wait for the response of another microservice to send a response to a client. The other microservice, in turn, also has to wait for another microservice, and...