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)

DynamoDB

We used local database instances in this chapter. The disadvantage of maintaining databases yourself is that you also have to take care of scalability yourself. There are a lot of services that provide popular databases that automatically scale to meet your needs. But not every database can grow without limits: traditional SQL databases often experience speed performance issues when tables become huge. For large datasets, you should choose to use key-value databases (such as NoSQL) that provide scalability by design. In this section, we will explore the usage of DynamoDB, which was created by Amazon, to provide an easily scalable database as a service.

To use AWS services, you need the AWS SDK, but there is no official SDK for Rust, so we will use the rusoto crate, which provides the AWS API in Rust. Let's start by porting the tool, which we created...