Update _id of MongoDB items

MongoServerError: Performing an update on the path '_id' would modify the immutable field '_id'

While updating the _id is not possible, because this is an immutable field, there is another way to make this happen.

• iterate through the collection
• save the old _id in a variable
• set the new _id field value to ObjectId
• remove the old item

Sample code:
db.products.find().forEach(function(doc){
var oldId = doc._id
doc._id=ObjectId()
db.products.insert(doc)
db.products.deleteOne({ _id: oldId})
})