protoch

protoc-helper

A multilanguage protoc protobuff generator for node. uses the protoc binary and supports multiple platforms and processors. forked from node-protoc to add additional languages. . Please see Protobuf Plugin Installation to install the required plugins for your target language.

Install

• local: npm i protoc-helper
• cli-tool: npx install protoch

How to use

• you can find a demoscript and the proto file in the scripts folder.

CLI (via npx global install)

npx protoch <lang> <out_path> <proto_file> <proto_path>
npx protoc --go_out=<out_path> --proto_path=<proto_file_folder>  <proto_file> // exchange --go_out is using another lamguage

via Script
without instance (array is supported)

createProtobuff( <lang> <output_path> <total_proto_file_path> )
createProtobuff( <lang> <output_path> <proto_file_folder> <proto_file>)

using class instance

generator.generateProtobuf( <lang> <output_path> <proto_file> <proto_file_folder>)

usings array for multiple files

generator.generateProtobuf([[ <lang> <output_path> <proto_file> <proto_file_folder>],[ <lang> <output_path> <proto_file> <proto_file_folder> ]])

Arguments

lang The programming language for which the Protobuf file should be generated.
total_proto_file_path The path to the Proto file that should be used as the source.
output_path The path where the generated Protobuf file should be saved
proto_file The name of the proto file including the extension.
proto_file_folder A path to a folder that holds a proto file.

Example

const {ProtobuffGenerator,createProtobuff} = require("protoc-helper")
const generator = new ProtobuffGenerator()
const dir = String(__dirname)+"/"
generator.generateProtobuf([["go",dir,"helloworld.proto",dir],["python",dir,"helloworld.proto",dir]])

if you like this package, pls consider giving Jeppe’s and my repo a Star on github

Protobuf Plugin Installation

Go

• Repository: https://github.com/golang/protobuf
• Installation: bash go get -u github.com/golang/protobuf/protoc-gen-go

Java

• Repository: https://github.com/google/protobuf-gradle-plugin
• Installation: gradle plugins { id 'com.google.protobuf' version '0.8.17' }

Python

• Repository: https://github.com/protocolbuffers/protobuf
• Installation: bash pip install protobuf

C#

• Repository: https://github.com/protocolbuffers/protobuf
• Installation: powershell Install-Package Google.Protobuf.Tools

Ruby

• Repository: https://github.com/localshred/protobuf
• Installation: bash gem install protobuf

Objective-C

• Repository: https://github.com/protocolbuffers/protobuf
• Installation: ruby pod '!ProtoCompiler-gRPCPlugin'

PHP

• Repository: https://github.com/protocolbuffers/protobuf
• Installation: bash composer require google/protobuf

Dart

• Repository: https://github.com/dart-lang/protobuf
• Installation: bash dart pub global activate protoc_plugin

Rust

• Repository: (https://github.com/neoeinstein/protoc-gen-prost](https://github.com/neoeinstein/protoc-gen-prost)
• Installation: *see repo

Swift

• Repository: https://github.com/apple/swift-protobuf
• Installation: swift // Add SwiftProtobuf as a dependency to your Xcode project

Kotlin

• Repository: https://github.com/grpc/grpc-kotlin/tree/master/compiler
• Installation: bash

Clone and build the plugin git clone https://github.com/grpc/grpc-kotlin.git cd grpc-kotlin/compiler ./gradlew installDist

Scala

• Repository: https://github.com/scalapb/ScalaPB
• Installation: scala // Add ScalaPB as a dependency to your sbt project libraryDependencies += "com.thesamet.scalapb" %% "compilerplugin" % "0.11.1"

JavaScript/TypeScript

• Repository: https://github.com/improbable-eng/ts-protoc-gen
• Installation: bash npm install ts-protoc-gen

NPX and additional args

you can use npx protoc or add your own arguments in the index.js:

   switch (language) {
            case 'go':
                // Example for Go --go_opt=paths=source_relative --go-grpc_out=. --go-grpc_opt=paths=source_relative
                command = `npx protoc --go_out=${outputPath} --proto_path=${proto_path} ${proto_file}`;
                break;
            case 'java':
                // Example for Java
                command = `npx protoc --java_out=${outputPath} --proto_path=${proto_path} ${proto_file}`;
                break;
            case 'python':