Handling Mongoose validation errors – where and how?

Question

I\'m trying to decide how I want to handle validation errors in Mongoose.

Custom error messages using node-validator

I have defined my own validation rules

Answer 1

From Mongoose: https://github.com/leepowellcouk/mongoose-validator

Error Messages Custom error messages are now back in 0.2.1 and can be set through the options object:

validate({message: "String should be between 3 and 50 characters"}, 'len', 3, 50)

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How I implemented this:

var emailValidator = [validate({message: "Email Address should be between 5 and 64 characters"},'len', 5, 64), validate({message: "Email Address is not correct"},'isEmail')];

var XXXX = new Schema({
email : {type: String, required: true, validate: emailValidator} }); 

My front end deals with required, so I don't ever expect the mongoose "required" error to make it to the user, more of a back end safe guard.