text: var service = require("../static_codegen/Person_grpc_pb");
  var message = require('../static_codegen/Person_pb');
  var grpc = require('grpc');
  
  var server = new grpc.Server();
  server.addService(service.PersonServiceService, {
      getRealNameByUsername: getRealNameByUsername,
  
      getPersonsByAge: getPersonsByAge,
  
      getPersonsWrapperByAges: getPersonsWrapperByAges,
  
      biTalk: biTalk
  });
  
  server.bind('127.0.0.1:8899', grpc.ServerCredentials.createInsecure());
  server.start();
  
  function getRealNameByUsername(call, callback) {
      console.log("call: " + call.request.getUsername());
  
      var pepole = new message.PResponse();
      pepole.setRealname("server handle: " + call.request.getUsername());
      callback(null, pepole);
  }
  
  function getPersonsByAge() {
  
  }
  
  function getPersonsWrapperByAges() {
  
  }
  
  function biTalk() {
  
  }
  
  
  
  