text: const grpc = require('@grpc/grpc-js');
  const protoLoader = require('@grpc/proto-loader');
  
  var path = __dirname + "/protos/shopping_order.proto";
  
  var packageDefinition = protoLoader.loadSync(path, {
      keepCase: true,
      longs: String,
      enums: String,
      defaults: true,
      oneofs: true
  })
  
  var shopping = grpc.loadPackageDefinition(packageDefinition).shopping;
  
  function main() {
      const client = new shopping.ShoppingOrder('localhost:50051', grpc.credentials.createInsecure());
      client.GetOrder2({order_idx : 1}, function(err, res) {
          console.log("client", res);
      });
  }
  
  main();