Монгуз создать

//Add a user
/* We’ll expect JSON in this format
{
  ID: Integer,
  Username: String,
  Password: String,
  Email: String,
  Birthday: Date
}*/
app.post('/users', (req, res) => {
  Users.findOne({ Username: req.body.Username })
    .then((user) => {
      if (user) {
        return res.status(400).send(req.body.Username + 'already exists');
      } else {
        Users
          .create({
            Username: req.body.Username,
            Password: req.body.Password,
            Email: req.body.Email,
            Birthday: req.body.Birthday
          })
          .then((user) =>{res.status(201).json(user) })
        .catch((error) => {
          console.error(error);
          res.status(500).send('Error: ' + error);
        })
      }
    })
    .catch((error) => {
      console.error(error);
      res.status(500).send('Error: ' + error);
    });
});
Quaint Quelea