wget https://github.com/google/protobuf/releases/download/v2.6.1/protobuf-2.6.1.tar.gz
  tar zxvf protobuf-2.6.1.tar.gz
  cd protobuf-2.6.1./configure
  make
  make install

go get github.com/golang/protobuf/protoc-gen-go

go get github.com/golang/protobuf/proto

 package example;
 
 enum FOO { X = 17; };
 
 message Test {
  required string label = 1;
  optional int32 type = 2 [default=77];
  repeated int64 reps = 3;
  optional group OptionalGroup = 4 {
  required string RequiredField = 5;
  }
 }

 package main

 import (
  "log"

  "github.com/golang/protobuf/proto"
  "example"
 )

 func main() {
  test := &example.Test {
   Label: proto.String("hello"),
   Type: proto.Int32(17),
   Reps: []int64{1, 2, 3},
   Optionalgroup: &example.Test_OptionalGroup {
    RequiredField: proto.String("good bye"),
   },
  }
  data, err := proto.Marshal(test)
  if err != nil {
   log.Fatal("marshaling error: ", err)
  }
  newTest := &example.Test{}
  err = proto.Unmarshal(data, newTest)
  if err != nil {
   log.Fatal("unmarshaling error: ", err)
  }
  // Now test and newTest contain the same data.
  if test.GetLabel() != newTest.GetLabel() {
   log.Fatalf("data mismatch %q != %q", test.GetLabel(), newTest.GetLabel())
  }
  //test.GetOptionalgroup().GetRequiredField()
  //etc
 }