remove duplicate record in mongodb

remove-duplicate.js

try {
            await client.db(dbName).collection(`${collectionNamePrefix}`).aggregate([
                {
                    "$group": {
                        _id: {ICCID: "$ICCID"}, // field which have duplicate value 
                        dups: { $addToSet: "$_id" } ,
                        count: { $sum : 1 }
                    }
                },
                {
                    "$match": {
                        count: { "$gt": 1 }
                    }
                }
               ]).forEach( async (doc) => {
                  console.log(doc)
                  doc.dups.shift();
                  await client.db(dbName).collection(`${collectionNamePrefix}`).deleteMany({
                      _id: {$in: doc.dups}
                  });
               })
        } catch (error) {
            console.log(error)
        }