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Protocol Buffers for Go with Gadgets

gogoprotobuf is a fork of golang/protobuf with extra code generation features.

This code generation is used to achieve:

fast marshalling and unmarshalling
more canonical Go structures
goprotobuf compatibility
less typing by optionally generating extra helper code
peace of mind by optionally generating test and benchmark code
other serialization formats

Keeping track of how up to date gogoprotobuf is relative to golang/protobuf is done in this issue

Users

These projects use gogoprotobuf:

etcd - blog - sample proto file
spacemonkey - blog
badoo - sample proto file
mesos-go - sample proto file
heka - the switch from golang/protobuf to gogo/protobuf when it was still on code.google.com
cockroachdb - sample proto file
go-ipfs - sample proto file
rkive-go - sample proto file
dropbox
srclib - sample proto file
adyoulike
cloudfoundry - sample proto file
kubernetes - go2idl built on top of gogoprotobuf
dgraph - release notes - benchmarks
centrifugo - release notes - blog
docker swarmkit - sample proto file
nats.io - go-nats-streaming
tidb - Communication between tidb and tikv
protoactor-go - vanity command that also generates actors from service definitions
containerd - vanity command with custom field names that conforms to the golang convention.
nakama
proteus
carbonzipper stack
sendgrid
zero-os/0-stor
go-spacemesh

Please let us know if you are using gogoprotobuf by posting on our GoogleGroup.

Mentioned

Getting Started

There are several ways to use gogoprotobuf, but for all you need to install go and protoc. After that you can choose:

Speed
More Speed and more generated code
Most Speed and most customization

Installation

To install it, you must first have Go (at least version 1.6.3 or 1.9 if you are using gRPC) installed (see http://golang.org/doc/install). Latest patch versions of 1.9 and 1.10 are continuously tested.

Next, install the standard protocol buffer implementation from https://github.com/google/protobuf. Most versions from 2.3.1 should not give any problems, but 2.6.1, 3.0.2 and 3.5.1 are continuously tested.

Speed

Install the protoc-gen-gofast binary

go get github.com/gogo/protobuf/protoc-gen-gofast

Use it to generate faster marshaling and unmarshaling go code for your protocol buffers.

protoc --gofast_out=. myproto.proto

This does not allow you to use any of the other gogoprotobuf extensions.

More Speed and more generated code

Fields without pointers cause less time in the garbage collector. More code generation results in more convenient methods.

Other binaries are also included:

protoc-gen-gogofast (same as gofast, but imports gogoprotobuf)
protoc-gen-gogofaster (same as gogofast, without XXX_unrecognized, less pointer fields)
protoc-gen-gogoslick (same as gogofaster, but with generated string, gostring and equal methods)

Installing any of these binaries is easy. Simply run:

go get github.com/gogo/protobuf/proto
go get github.com/gogo/protobuf/{binary}
go get github.com/gogo/protobuf/gogoproto

These binaries allow you to use gogoprotobuf extensions. You can also use your own binary.

To generate the code, you also need to set the include path properly.

protoc -I=. -I=$GOPATH/src -I=$GOPATH/src/github.com/gogo/protobuf/protobuf --{binary}_out=. myproto.proto

To use proto files from "google/protobuf" you need to add additional args to protoc.

protoc -I=. -I=$GOPATH/src -I=$GOPATH/src/github.com/gogo/protobuf/protobuf --{binary}_out=\
Mgoogle/protobuf/any.proto=github.com/gogo/protobuf/types,\
Mgoogle/protobuf/duration.proto=github.com/gogo/protobuf/types,\
Mgoogle/protobuf/struct.proto=github.com/gogo/protobuf/types,\
Mgoogle/protobuf/timestamp.proto=github.com/gogo/protobuf/types,\
Mgoogle/protobuf/wrappers.proto=github.com/gogo/protobuf/types:. \
myproto.proto

Note that in the protoc command, {binary} does not contain the initial prefix of "protoc-gen".

Most Speed and most customization

Customizing the fields of the messages to be the fields that you actually want to use removes the need to copy between the structs you use and structs you use to serialize. gogoprotobuf also offers more serialization formats and generation of tests and even more methods.

Please visit the extensions page for more documentation.

Install protoc-gen-gogo:

go get github.com/gogo/protobuf/proto
go get github.com/gogo/protobuf/jsonpb
go get github.com/gogo/protobuf/protoc-gen-gogo
go get github.com/gogo/protobuf/gogoproto

GRPC

It works the same as golang/protobuf, simply specify the plugin. Here is an example using gofast:

protoc --gofast_out=plugins=grpc:. my.proto

See https://github.com/gogo/grpc-example for an example of using gRPC with gogoprotobuf and the wider grpc-ecosystem.

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