add auth-service not verified with Dockerfile

backend/service-authentication/server.js

@@ -0,0 +1,32 @@
+const express = require('express');
+const app = express();
+const port = process.env.PORT || 3000;
+
+const cookieParser = require('cookie-parser');
+app.use(cookieParser());
+
+const bodyParser = require('body-parser');
+app.use(bodyParser.urlencoded({extended:true}));
+app.use(bodyParser.json());
+
+const cors = require('cors');
+app.use(cors({origin: 'http://127.0.0.1:4200', credentials: true}));
+
+const mongoConnect = require('./mongodbConnect');
+
+mongoConnect.connectToServer(function( err, client ) {
+    if (err) 
+        console.log(err);
+
+    const checkLogin = require('./checkLogin');
+
+    app.post('/checkLogin', (req, res) => { 
+        checkLogin(req,res); 
+    });
+
+    app.listen(port, () => {
+        console.log (`listening on port ${port}`);
+    });
+});
+
+