Mongoose .pull not deleting subdocument - mongodb

Question

I'm trying to remove a product from a category using mongoose .remove from these other questions but none seem to work
Remove sub-document from Mongo with mongoose
But nothing is happening and I only get back the same thing unedited
Category Schema
const mongoose = require('mongoose');
const Schema = mongoose.Schema;
const Product = require('./Product');
const CategorySchema = Schema({
_id: Schema.Types.ObjectId,
categoryName: {
type: String,
required: true,
},
categoryDescription: String,
productList: [Product],
});
mongoose.model('Category', CategorySchema);
Products Schema
const mongoose = require('mongoose');
const Schema = mongoose.Schema;
const ProductSchema = Schema({
productName: {
type: String,
required: true,
},
productDescription: String,
categories: { type: Schema.Types.ObjectId, ref: 'Category' },
});
mongoose.model('Product', ProductSchema);
My express route to handle deleting of the subdocument
app.delete('/api/category-with-product/:categoryId', (req, res) => {
const categoryId = req.params.categoryId;
const { productId } = req.body;
Category.findById(categoryId)
.then((category) => {
category.productList.pull({ _id: productId });
return category.save();
})
.then((newCategory) => {
res.send(newCategory);
});
});
My expected outcome is for this is to just remove the product in the productList array
{
_id: 5c5b990d56b3f61ce3736e6f,
categoryName: 'A new category name',
description: 'description',
productList:[
{ _id: 5c6e4b5114333b25f8e9d737,
productName: 'test',
productDescription: 'test'
}
],
}

Answer 1

Could you please try this:
const ObjectId = mongoose.Types.ObjectId;
function funcName() {
return new Promise((resolve, reject) => {
db.category.update(
{ },
{ $pull: { productList: { _id: ObjectId(productId) } } },
{ multi: true }
)
.then((result) => resolve())
.catch((err) => reject(err));
});
}
You can also try Async/Await during database operations.