How to remove an entire array in mongodb- node

Question

This is what I tred

removeFromCart:(userId)=>{
        return new Promise(async (resolve,reject)=>{
            db.get().collection(collection.CART_COLLECTION).updateOne({_id:userId},
                {
                    $pull:{
                        products
                    }
                }
            )
            resolve(response)
        })
    }

This is the structure of my database, after placing the orde, I have to remove the cart array , Then what I have to do?

{
  "_id": {
    "$oid": "633abca2f9a57f6470904812"
  },
  "user": {
    "$oid": "633ab3c11e6e97b6332f56a1"
  },
  "products": [
    {
      "item": {
        "$oid": "63314b0c07e279ee33c55caf"
      },
      "quantity": 2
    }
  ]
}

eol · Accepted Answer · 2022-10-05 13:26:56Z

1

You can use the $unset operator:

db.collection.update({
  "_id": "633abca2f9a57f6470904812"
},
{
  "$unset": {
    "products": ""
  }
})

Here's an example on mongoplayground: https://mongoplayground.net/p/X9jEnmKjCGK

edited Oct 5, 2022 at 13:26

answered Oct 5, 2022 at 9:39

eol

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