Book Image

Protocol Buffers Handbook

By : Clément Jean
Book Image

Protocol Buffers Handbook

By: Clément Jean

Overview of this book

Explore how Protocol Buffers (Protobuf) serialize structured data and provides a language-neutral, platform-neutral, and extensible solution. With this guide to mastering Protobuf, you'll build your skills to effectively serialize, transmit, and manage data across diverse platforms and languages. This book will help you enter the world of Protocol Buffers by unraveling the intricate nuances of Protobuf syntax and showing you how to define complex data structures. As you progress, you’ll learn schema evolution, ensuring seamless compatibility as your projects evolve. The book also covers advanced topics such as custom options and plugins, allowing you to tailor validation processes to your specific requirements. You’ll understand how to automate project builds using cutting-edge tools such as Buf and Bazel, streamlining your development workflow. With hands-on projects in Go and Python programming, you’ll learn how to practically apply Protobuf concepts. Later chapters will show you how to integrate data interchange capabilities across different programming languages, enabling efficient collaboration and system interoperability. By the end of this book, you’ll have a solid understanding of Protobuf internals, enabling you to discern when and how to use and redefine your approach to data serialization.
Table of Contents (13 chapters)

Schema Evolution over Time

Before we enter the practical part of this book, we need to touch on the last important bit about Protobuf. Often, the data schemas evolve and it is important to make sure that newer versions of our app can still interact with older/newer versions of it. Now, while Protobuf does not provide any automatic way of ensuring compatibility between different versions, it provides constructs that can help us.

In this chapter, we’re going to cover the following main topics:

  • Backward and forward compatibility
  • Reserved tags and names
  • How to evolve schemas safely

By the end of this chapter, you will understand how to design schemas that are backward and forward compatible, and that are safe to use across versions of your app.