grpc_tools_node_protoc_tsを使って.protoファイルからTypeScriptの型定義ファイルを生成する

npm i --save-dev grpc_tools_node_protoc_ts

grpc_tools_node_protoc \
--plugin=protoc-gen-ts=./node_modules/.bin/protoc-gen-ts \
--ts_out=. \
hero/hero.proto

import * as grpc from 'grpc';
import * as hero_grpc_pb from './hero/hero_grpc_pb';
import * as hero_pb from './hero/hero_pb';

const client = new hero_grpc_pb.HeroServiceClient(
  '127.0.0.1:5001',
  grpc.credentials.createInsecure(),
);

const req = new hero_pb.HeroById();
req.setId(1);

client.findOne(req, (error, res) => {
  if (error) {
    console.log(error);
  }
  console.log(res.toObject());
});

$ ts-node client.ts
{ id: 1, name: 'John' }