message-controller.js

'use strict';

class MessageController {
   /**
     * GET /
     * Renders Home page
     * @param req  Object
     * @param res  Object
     * @param next Callback
     */
    getMessage(req, res, next) {
       console.log(req);
       res.send('Hello Worldsss!');
       
    }
    postMessage(req, res, next) {
      console.log(req.body);
      res.send('gotcha!');
      
   }
}


exports.messageController = new MessageController;

server.js

'use strict';

/**
 * Module dependecy
 */
const express = require('express');
const bodyParser = require('body-parser');
const check = require('check-node-version'); //check node version
const dotenv =  require ('dotenv');
const compression = require('compression');


/**
 * Load environment variables from .env file, where API keys and passwords are configured.
 */
dotenv.config({ path: ".env" });

/**
 * Routes
 */
const messageRouter = require('./routes/message-router');

class App {
    constructor() {
        this.express = express();
        this.routes();
        this.middleware();
        this.launchConf();
    }
    middleware() {
        this.express.set("port", process.env.PORT || 4000);
        this.express.use(bodyParser.urlencoded({ extended: true }));
        this.express.use(bodyParser.json());
        
    }
    routes() {
        this.express.use("/", messageRouter.apiRouter);
    }
    launchConf() {
        /**
         * Start Express server.
         */
        this.express.listen(this.express.get("port"), () => {
            // tslint:disable-next-line:no-console
            console.log(("  App is running at http://localhost:%d \
      in %s mode"), this.express.get("port"), this.express.get("env"));
            // tslint:disable-next-line:no-console
            console.log("  Press CTRL-C to stop\n");
        });
    }
}


exports.default = new App().express;