Language Guide (proto 2)
This topic covers how to use the version 2 of Protocol Buffers in your project.
This topic covers how to use the version 2 of Protocol Buffers in your project.
This topic covers how to use the version 3 of Protocol Buffers in your project.
This topic provides direction for how best to structure your proto definitions.
This topic explains how enums currently work in Protocol Buffers vs. how they should work.
This topic explains how Protocol Buffers encodes data to files or to the wire.
This topic describes some commonly-used design patterns for dealing with Protocol Buffers.
This topic links out to many open source projects that seek to add useful functionality on top of Protocol Buffers.
This topic describes in detail what extension declarations are, why we need them, and how we use them.
This topic explains the various presence-tracking disciplines for protobuf fields. It also explains the behavior of explicit presence-tracking for singular proto3 fields with basic types.
This topic contains vetted best practices for authoring Protocol Buffers.
A future-proof API is surprisingly hard to get right. The suggestions in this document make trade-offs to favor long-term, bug-free evolution.