Async Rust

Chapter 10. Building an Async Server with No Dependencies

We are now at the penultimate chapter of this book. Therefore, we need to focus on understanding how async interacts in a system. To do this, we are going to build an async server completely from the standard library with no third-party dependencies. This will solidify your understanding of the fundamentals of async programming and how it fits into the bigger picture of a software system. Packages, programming languages, and API documentation will change over time. While understanding the current tools of async is important, and we have covered them throughout the book, knowing the fundamentals of async programming will enable you to read new documentation/tools/frameworks/languages you come across with ease.

By the end of this chapter, you will be able to build a multithreaded TCP server that will accept incoming requests and send these requests to an async executor to be processed asynchronously. Because we are only using the standard library, you will also be able to build your own async executor that accepts tasks and keeps polling them to completion. Finally, you will also be able to implement this async functionality to a client that sends requests to the server. This will give you the ability and confidence to build basic async solutions with minimal dependencies to solve lightweight problems. So, let’s get started with setting up the basics of this project.

Setting Up the Basics

For our project, we are going to ...