mongoose unique validator code example

Example 1: mongoose unique field

var SimSchema = new Schema({
    msisdn     : { type : String , unique : true, required : true, dropDups: true },
    imsi       : { type : String , unique : true, required : true, dropDups: true },
    status     : { type : Boolean, default: true},
    signal     : { type : Number },
    probe_name : { type:  String , required : true }
});

Example 2: mongoose unique validator

npm install --save mongoose-unique-validator


var mongoose = require('mongoose');
var uniqueValidator = require('mongoose-unique-validator');
 
var mySchema = mongoose.Schema(/* put your schema definition here */);
mySchema.plugin(uniqueValidator);

Example 3: mongoose id validator

var mongoose = require('mongoose');
var isValid = mongoose.Types.ObjectId.isValid('5c0a7922c9d89830f4911426'); //true

Example 4: mongoose unique error message

emailVerificationTokenSchema.post('save', function(error, doc, next) {
  if (error.name === 'MongoError' && error.code === 11000) {
    next(new Error('email must be unique'));
  } else {
    next(error);
  }
});

Example 5: express unique validator for the owner

schmea.post('save', function(error, doc, next) {
  if (error.name === 'MongoError' && error.code === 11000) {
    next(new Error('email must be unique'));
  } else {
    next(error);
  }
});