protoc & protoc-gen-go安装

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protoc is a tool written in C++, which can translate proto files into codes in the specified language. In the go-zero microservices, we use grpc to communicate between services, and the writing of grpc requires the use of protoc and the plug-in protoc-gen-go that translates into go language rpc stub code.

Demonstration environment of this document

  • mac OS
  • protoc 3.14.0

protoc installation

  • Enter the protobuf release page and select the compressed package file suitable for your operating system
  • Unzip protoc-3.14.0-osx-x86_64.zip and enter protoc-3.14.0-osx-x86_64
    1.   $ cd protoc-3.14.0-osx-x86_64/bin
  • Move the started protoc binary file to any path added to the environment variable, such as $GOPATH/bin. It is not recommended putting it directly with the next path of the system.
    1.   $ mv protoc $GOPATH/bin

    [!TIP] $GOPATH is the actual folder address of your local machine

  • Verify the installation result

    1.   $ protoc --version
    1.   libprotoc 3.14.0

    protoc-gen-go installation

  • Download and install protoc-gen-go

    1.   $ go get -u github.com/golang/protobuf/protoc-gen-go@v1.3.2
    1.   go: found github.com/golang/protobuf/protoc-gen-go in github.com/golang/protobuf v1.4.3
    2.   go: google.golang.org/protobuf upgrade => v1.25.0
  • Move protoc-gen-go to any path where environment variables are added, such as $GOPATH/bin, because the binary itself after go get is in the $GOPATH/bin directory, so just make sure your $GOPATH/bin can be in the environment variable.

**[!WARNING] protoc-gen-go installation failed, please read Error