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javascriptnode.jsmongodbmongoose

Mongoose - detect duplicated fields

I have user schema with 2 unique fields(email and username) and when i try to create new user with duplicated field I have that error

{
  "error": {
    "code": 11000,
    "index": 0,
    "errmsg": "E11000 duplicate key error collection: InstaClone.users index: email_1 dup key: { : \"[email protected]\" }",
    "op": {
      "hashedPassword": "$2a$10$eaMym5AMibJlGOSBV3/DHOXPhSoMMDTNwxGcSOn4tEPg07htyQ2Ey",
      "email": "[email protected]",
      "username": "test",
      "fullName": "Roman Baida",
      "_id": "58d3a8acdc57641e30e9027a",
      "created": "2017-03-23T10:50:49.188Z",
      "__v": 0
    }
  }
}

How I can get duplicated filed name? Only way I see is to parse errmsg field. Maybe someone know better way?

Solution

  • To customize error returned from mongoose unique validation you can use package called: mongoose-beautiful-unique-validation

    https://www.npmjs.com/package/mongoose-beautiful-unique-validation