How to require a nested json object in Mongoose Schema

Question

I have the following mongoose schema:

const productSchema = new mongoose.Schema({
  name: {
    type: String,
    required: true,
    minlength: 1,
    maxlength: 255
  },
  extraData: {
    brand: {
      type: String,
      required: true,
      minlength: 1,
      maxlength: 255
    },
    quantity: {
      type: Number,
      required: true,
      minlength: 1,
      maxlength: 10
    },
   required: true
  }
});

However when i execute it I get the following error: "TypeError: Invalid schema configuration: True is not a valid type at path extraData.required". How can I require the extraData?

Answer 1

Update: You can use the Subdocument apporach

const extraDataSchema = new mongoose.Schema({
  brand: {
    type: String,
    required: true,
    minlength: 1,
    maxlength: 255
  },
  quantity: {
    type: Number,
    required: true,
    minlength: 1,
    maxlength: 10
  }
});

const productSchema = new mongoose.Schema({
  name: {
    type: String,
    required: true,
    minlength: 1,
    maxlength: 255
  },
  extraData: {
    type: extraDataSchema, required: true
  }
});

Answer 2

Check out the Mongoose documentation, In this link you can find an explanation on how to add required to nested properties().
I believe you will need a sub-schema for the nested properties.