Как позвонить удаленно, используя веб-сокет в машинописи?

Question

Мне нужна функция, которая может вызывать удаленный синхронно

1. отправить сообщение
   

2. дождаться получения удаленного ответа, например (Object.wait () или CountDownLatch.wait () в Java
   

   3.При получении сообщения установите ответ
   

   , но проблема в том, как «подождать»? Я пробовал следующий код:

import * as http from 'http'
import * as ws from 'websocket';

export class DevicesServer {

    private httpServer: http.Server;
    private response: string | undefined = undefined;
    private connection: ws.connection | undefined = undefined;
    startServer(port: number) {

        this.httpServer = http.createServer(function (request, response) {
            console.log(new Date() + ' Received request for ' + request.url);
            response.writeHead(404);
            response.end();
        });
        var wsServer = new ws.server({ httpServer: this.httpServer });
        wsServer.on('request', request => {
            console.log(`new connection: ${request}`);
            this.connection = request.accept();

            this.connection.on("message", (data) => {
                console.log(`receive ${request}`);
                this.response = data.utf8Data;
            })

            this.syncRemoteCall();

        })

        this.httpServer.on('error', (e) => {
            console.error('server error: ', e);
        });
        this.httpServer.listen(port, '0.0.0.0', () => {
            let address = this.httpServer.address();
            console.log(`server started on ${JSON.stringify(address)}`);
        });
    }


    /** this is the problem, I want to send a request and the function 
        do not return and wait until the response is received, but if 
         wait like this, the connection is likely paused,and cannot receive any data  */
    syncRemoteCall(): string {
        console.log(`syncRemoteCall start `);
        this.connection.sendUTF(`{"message":"hello is am server"}`);
        while (this.response == undefined) {
            // how to wait some time until this.response have data?????
            new Promise(resolve => setTimeout(resolve, 100)); 
        }
        console.log(`syncRemoteCall ok response=${this.response} `);
        return this.response;
    }
}

let server = new DevicesServer()
server.startServer(8888);
console.log("started on 8888")

** Есть ли способ реализовать метод syncRemoteCall? **