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)

Serialization Internals

Now that we know how to describe data in Protobuf text format and encode it into binary, we have all the tools we need to learn about the serialization internals. These internals are important to learn because there are a lot of trade-offs between the different types and we need to be aware of them to define efficient schemas.

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

  • Variable-length integers
  • ZigZag encoding
  • Fixed-size integers
  • How to choose between integer types
  • Length-delimited encoding
  • Packed versus unpacked repeated fields
  • Maps

By the end of this chapter, you will know how Protobuf encodes/decodes data to/from binary and you will understand the output binary by yourself.