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Rust Programming Cookbook

You're reading from   Rust Programming Cookbook Explore the latest features of Rust 2018 for building fast and secure apps

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Product type Paperback
Published in Oct 2019
Publisher Packt
ISBN-13 9781789530667
Length 444 pages
Edition 1st Edition
Languages
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Author (1):
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Claus Matzinger Claus Matzinger
Author Profile Icon Claus Matzinger
Claus Matzinger
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Toc

Table of Contents (12) Chapters Close

Preface 1. Starting Off with Rust 2. Going Further with Advanced Rust FREE CHAPTER 3. Managing Projects with Cargo 4. Fearless Concurrency 5. Handling Errors and Other Results 6. Expressing Yourself with Macros 7. Integrating Rust with Other Languages 8. Safe Programming for the Web 9. Systems Programming Made Easy 10. Getting Practical with Rust 11. Other Books You May Enjoy

Asynchronous programming with futures

Using futures is a common technique in JavaScript, TypeScript, C#, and similar technologies—made popular by the addition of the async/await keywords in their syntax. In a nutshell, futures (or promises) is a function's guarantee that, at some point, the handle will be resolved and the actual value will be returned. However, there is no explicit time when this is going to happen—but you can schedule entire chains of promises that are resolved after each other. How does this work in Rust? Let's find out in this recipe.

At the time of writing, async/await were under heavy development. Depending on when you are reading this book, the examples may have stopped working. In this case, we ask you to open an issue in the accompanying repository so we can fix the issues. For updates, check the Rust async working group's...
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