Custom Error Messages with Mongoose

Question

So according to the mongoose docs, you are supposed to be able to set a custom error message in the schema like so:

 var breakfastSchema = new Schema({
  eggs: {         


        

Answer 1

verificationToken.save( function (err) {
    if (err) {
      return res.status(400).send({
          message: (err.name === 'MongoError' && err.code === 11000) ? 'Email already exists !' : errorHandler.getErrorMessage(err)
      });
    }
    else {
      return console.log('No Error');
    }
  });