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160 lines
10 KiB
Markdown
160 lines
10 KiB
Markdown
# Protocol Buffers for Go with Gadgets
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[](https://travis-ci.org/gogo/protobuf)
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[](http://godoc.org/github.com/gogo/protobuf)
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gogoprotobuf is a fork of <a href="https://github.com/golang/protobuf">golang/protobuf</a> with extra code generation features.
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This code generation is used to achieve:
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- fast marshalling and unmarshalling
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- more canonical Go structures
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- goprotobuf compatibility
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- less typing by optionally generating extra helper code
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- peace of mind by optionally generating test and benchmark code
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- other serialization formats
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Keeping track of how up to date gogoprotobuf is relative to golang/protobuf is done in this
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<a href="https://github.com/gogo/protobuf/issues/191">issue</a>
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## Users
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These projects use gogoprotobuf:
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- <a href="http://godoc.org/github.com/coreos/etcd">etcd</a> - <a href="https://blog.gopheracademy.com/advent-2015/etcd-distributed-key-value-store-with-grpc-http2/">blog</a> - <a href="https://github.com/coreos/etcd/blob/master/etcdserver/etcdserverpb/etcdserver.proto">sample proto file</a>
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- <a href="https://www.spacemonkey.com/">spacemonkey</a> - <a href="https://www.spacemonkey.com/blog/posts/go-space-monkey">blog</a>
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- <a href="http://badoo.com">badoo</a> - <a href="https://github.com/badoo/lsd/blob/32061f501c5eca9c76c596d790b450501ba27b2f/proto/lsd.proto">sample proto file</a>
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- <a href="https://github.com/mesos/mesos-go">mesos-go</a> - <a href="https://github.com/mesos/mesos-go/blob/f9e5fb7c2f50ab5f23299f26b6b07c5d6afdd252/api/v0/mesosproto/authentication.proto">sample proto file</a>
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- <a href="https://github.com/mozilla-services/heka">heka</a> - <a href="https://github.com/mozilla-services/heka/commit/eb72fbf7d2d28249fbaf8d8dc6607f4eb6f03351">the switch from golang/protobuf to gogo/protobuf when it was still on code.google.com</a>
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- <a href="https://github.com/cockroachdb/cockroach">cockroachdb</a> - <a href="https://github.com/cockroachdb/cockroach/blob/651d54d393e391a30154e9117ab4b18d9ee6d845/roachpb/metadata.proto">sample proto file</a>
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- <a href="https://github.com/jbenet/go-ipfs">go-ipfs</a> - <a href="https://github.com/ipfs/go-ipfs/blob/2b6da0c024f28abeb16947fb452787196a6b56a2/merkledag/pb/merkledag.proto">sample proto file</a>
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- <a href="https://github.com/philhofer/rkive">rkive-go</a> - <a href="https://github.com/philhofer/rkive/blob/e5dd884d3ea07b341321073882ae28aa16dd11be/rpbc/riak_dt.proto">sample proto file</a>
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- <a href="https://www.dropbox.com">dropbox</a>
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- <a href="https://srclib.org/">srclib</a> - <a href="https://github.com/sourcegraph/srclib/blob/6538858f0c410cac5c63440317b8d009e889d3fb/graph/def.proto">sample proto file</a>
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- <a href="http://www.adyoulike.com/">adyoulike</a>
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- <a href="http://www.cloudfoundry.org/">cloudfoundry</a> - <a href="https://github.com/cloudfoundry/bbs/blob/d673710b8c4211037805129944ee4c5373d6588a/models/events.proto">sample proto file</a>
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- <a href="http://kubernetes.io/">kubernetes</a> - <a href="https://github.com/kubernetes/kubernetes/tree/88d8628137f94ee816aaa6606ae8cd045dee0bff/cmd/libs/go2idl">go2idl built on top of gogoprotobuf</a>
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- <a href="https://dgraph.io/">dgraph</a> - <a href="https://github.com/dgraph-io/dgraph/releases/tag/v0.4.3">release notes</a> - <a href="https://discuss.dgraph.io/t/gogoprotobuf-is-extremely-fast/639">benchmarks</a></a>
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- <a href="https://github.com/centrifugal/centrifugo">centrifugo</a> - <a href="https://forum.golangbridge.org/t/centrifugo-real-time-messaging-websocket-or-sockjs-server-v1-5-0-released/2861">release notes</a> - <a href="https://medium.com/@fzambia/centrifugo-protobuf-inside-json-outside-21d39bdabd68#.o3icmgjqd">blog</a>
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- <a href="https://github.com/docker/swarmkit">docker swarmkit</a> - <a href="https://github.com/docker/swarmkit/blob/63600e01af3b8da2a0ed1c9fa6e1ae4299d75edb/api/objects.proto">sample proto file</a>
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- <a href="https://nats.io/">nats.io</a> - <a href="https://github.com/nats-io/go-nats-streaming/blob/master/pb/protocol.proto">go-nats-streaming</a>
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- <a href="https://github.com/pingcap/tidb">tidb</a> - Communication between <a href="https://github.com/pingcap/tipb/blob/master/generate-go.sh#L4">tidb</a> and <a href="https://github.com/pingcap/kvproto/blob/master/generate_go.sh#L3">tikv</a>
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- <a href="https://github.com/AsynkronIT/protoactor-go">protoactor-go</a> - <a href="https://github.com/AsynkronIT/protoactor-go/blob/master/protobuf/protoc-gen-protoactor/main.go">vanity command</a> that also generates actors from service definitions
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- <a href="https://containerd.io/">containerd</a> - <a href="https://github.com/containerd/containerd/tree/master/cmd/protoc-gen-gogoctrd">vanity command with custom field names</a> that conforms to the golang convention.
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- <a href="https://github.com/heroiclabs/nakama">nakama</a>
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- <a href="https://github.com/src-d/proteus">proteus</a>
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- <a href="https://github.com/go-graphite">carbonzipper stack</a>
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- <a href="https://sendgrid.com/">sendgrid</a>
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- <a href="https://github.com/zero-os/0-stor">zero-os/0-stor</a>
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- <a href="https://github.com/spacemeshos/go-spacemesh">go-spacemesh</a>
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- <a href="https://github.com/weaveworks/cortex">cortex</a> - <a href="https://github.com/weaveworks/cortex/blob/fee02a59729d3771ef888f7bf0fd050e1197c56e/pkg/ingester/client/cortex.proto">sample proto file</a>
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- <a href="http://skywalking.apache.org/">Apache SkyWalking APM</a> - Istio telemetry receiver based on Mixer bypass protocol
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Please let us know if you are using gogoprotobuf by posting on our <a href="https://groups.google.com/forum/#!topic/gogoprotobuf/Brw76BxmFpQ">GoogleGroup</a>.
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### Mentioned
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- <a href="http://www.slideshare.net/albertstrasheim/serialization-in-go">Cloudflare - go serialization talk - Albert Strasheim</a>
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- <a href="https://youtu.be/4xB46Xl9O9Q?t=557">GopherCon 2014 Writing High Performance Databases in Go by Ben Johnson</a>
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- <a href="https://github.com/alecthomas/go_serialization_benchmarks">alecthomas' go serialization benchmarks</a>
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- <a href="http://agniva.me/go/2017/11/18/gogoproto.html">Go faster with gogoproto - Agniva De Sarker</a>
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- <a href="https://www.youtube.com/watch?v=CY9T020HLP8">Evolution of protobuf (Gource Visualization) - Landon Wilkins</a>
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- <a href="https://fosdem.org/2018/schedule/event/gopherjs/">Creating GopherJS Apps with gRPC-Web - Johan Brandhorst</a>
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- <a href="https://jbrandhorst.com/post/gogoproto/">So you want to use GoGo Protobuf - Johan Brandhorst</a>
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- <a href="https://jbrandhorst.com/post/grpc-errors/">Advanced gRPC Error Usage - Johan Brandhorst</a>
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- <a href="https://www.udemy.com/grpc-golang/?couponCode=GITHUB10">gRPC Golang Course on Udemy - Stephane Maarek</a>
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## Getting Started
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There are several ways to use gogoprotobuf, but for all you need to install go and protoc.
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After that you can choose:
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- Speed
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- More Speed and more generated code
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- Most Speed and most customization
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### Installation
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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](http://golang.org/doc/install)).
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Latest patch versions of 1.9 and 1.10 are continuously tested.
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Next, install the standard protocol buffer implementation from [https://github.com/google/protobuf](https://github.com/google/protobuf).
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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.
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### Speed
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Install the protoc-gen-gofast binary
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go get github.com/gogo/protobuf/protoc-gen-gofast
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Use it to generate faster marshaling and unmarshaling go code for your protocol buffers.
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protoc --gofast_out=. myproto.proto
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This does not allow you to use any of the other gogoprotobuf [extensions](https://github.com/gogo/protobuf/blob/master/extensions.md).
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### More Speed and more generated code
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Fields without pointers cause less time in the garbage collector.
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More code generation results in more convenient methods.
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Other binaries are also included:
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protoc-gen-gogofast (same as gofast, but imports gogoprotobuf)
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protoc-gen-gogofaster (same as gogofast, without XXX_unrecognized, less pointer fields)
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protoc-gen-gogoslick (same as gogofaster, but with generated string, gostring and equal methods)
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Installing any of these binaries is easy. Simply run:
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go get github.com/gogo/protobuf/proto
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go get github.com/gogo/protobuf/{binary}
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go get github.com/gogo/protobuf/gogoproto
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These binaries allow you to use gogoprotobuf [extensions](https://github.com/gogo/protobuf/blob/master/extensions.md). You can also use your own binary.
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To generate the code, you also need to set the include path properly.
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protoc -I=. -I=$GOPATH/src -I=$GOPATH/src/github.com/gogo/protobuf/protobuf --{binary}_out=. myproto.proto
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To use proto files from "google/protobuf" you need to add additional args to protoc.
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protoc -I=. -I=$GOPATH/src -I=$GOPATH/src/github.com/gogo/protobuf/protobuf --{binary}_out=\
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Mgoogle/protobuf/any.proto=github.com/gogo/protobuf/types,\
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Mgoogle/protobuf/duration.proto=github.com/gogo/protobuf/types,\
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Mgoogle/protobuf/struct.proto=github.com/gogo/protobuf/types,\
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Mgoogle/protobuf/timestamp.proto=github.com/gogo/protobuf/types,\
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Mgoogle/protobuf/wrappers.proto=github.com/gogo/protobuf/types:. \
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myproto.proto
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Note that in the protoc command, {binary} does not contain the initial prefix of "protoc-gen".
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### Most Speed and most customization
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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.
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gogoprotobuf also offers more serialization formats and generation of tests and even more methods.
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Please visit the [extensions](https://github.com/gogo/protobuf/blob/master/extensions.md) page for more documentation.
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Install protoc-gen-gogo:
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go get github.com/gogo/protobuf/proto
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go get github.com/gogo/protobuf/jsonpb
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go get github.com/gogo/protobuf/protoc-gen-gogo
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go get github.com/gogo/protobuf/gogoproto
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## GRPC
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It works the same as golang/protobuf, simply specify the plugin.
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Here is an example using gofast:
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protoc --gofast_out=plugins=grpc:. my.proto
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See [https://github.com/gogo/grpc-example](https://github.com/gogo/grpc-example) for an example of using gRPC with gogoprotobuf and the wider grpc-ecosystem.
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## License
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This software is licensed under the 3-Clause BSD License
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("BSD License 2.0", "Revised BSD License", "New BSD License", or "Modified BSD License").
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