populate nested array of objects mongoose

Question

I have been trying to populate products in my Cart. My Cart model is -

const ProductSchema = new mongoose.Schema({
  product: { type: mongoose.Schema.Types.ObjectId, ref: 'Product'},
  quantity: Number
});
const CartSchema = new mongoose.Schema({
  userId: mongoose.Schema.Types.ObjectId,
  products: [ProductSchema]
});

I am trying to get the cart value like this -

let getCart = async (userId) => {
  let res = await Cart.find({ userId: userId }).populate('products.product')
  return res;
};

Output -

{
  userId: xyz,
  products:[
    product: null,
    quantity:1
  ]
}

Expected Result -

{ 
  userId: xyz,
  products:[
    product: {
      name: 'product name', 
      description:'',
      ...
    },
    quantity:1
  ]
}

Possible duplicate of Mongoose populating array of subdocuments — Vikash_Singh
– Vikash_Singh, Commented May 16, 2019 at 19:20

Shivam Pandey · Accepted Answer · 2019-05-06 06:29:04Z

0

You need to populate only products and select product to show from the populated array.

answered May 6, 2019 at 6:29

Shivam Pandey

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Comments

Shivani Tyagi · Accepted Answer · 2019-05-06 06:33:18Z

-1

Just populating product is enough I guess.

let getCart = async (userId) => {
  let res = await Cart.find({ userId: userId }).populate('products')
  return res;
};

answered May 6, 2019 at 6:33

Shivani Tyagi

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