“nodo MongoDB JS” Código de respuesta

nodo MongoDB JS

var http = require('http');
var express = require('express')
var app = express()
var path = require('path')
var bodyParser = require('body-parser')
app.use(express.static(path.join(__dirname,"/dist")));
var MongoClient = require('mongodb').MongoClient;
var url = "mongodb://localhost:27017/";



app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: true }));
// Route to Homepage
app.get('/', (req, res) => {
  res.sendFile(__dirname + '/attendance/index.html');
});

 
// POST /login gets urlencoded bodies
app.post('/login', (req, res)=> {
console.log(req.body.usernames, req.body.passwords)
  MongoClient.connect(url, (err, db)=> {
    if (err) throw err;
    var dbo = db.db("mydb");
    var query = { username: req.body.usernames,password: req.body.passwords };
    dbo.collection("account_tbl").find(query).toArray(function(err, result) {
      if (err){
        throw err;
      }
      else{
        console.log("Res",err);
        res.send(result);
      }
      
      db.close();
    });
  });
})

const port = 3000
app.listen(port, () => console.log(`This app is listening on port ${port}`));