mongoose插入文档

为什么mongoose插入文档时抛出异常
throw new MongooseError('Model.create() no longer accepts a callback');
求解答​

你可以用async await解决:

app.post('/create_contact', async function (req, res) {
  try {
    const newContact = await contact.create(req.body);
    console.log('********', newContact);
    return res.redirect('back');
  } catch (err) {
    res.send('error in creating a contact!');
  }
});