app.post('/index',function(req,res){

MongoClient.connect(url, function(err, db) {
  if (err) throw err;
  var dbo = db.db("project");

  dbo.collection("Register").findOne({}, function(err, result) {

    if (result.Email == req.body.email && result.Password == req.body.psw) {
      console.log("OK");
    }
    else{
      console.log(result.Email && result.Password);
    }
    db.close();
  });
 });
 });