Use cases for updateOne over findOneAndUpdate in MongoDB

Question

I think that findOneAndUpdate carries out an atomic operation, so I'm assuming that updateOne does not.

Why would you choose updateOne over findOneAndUpdate and avoid an atomic operation and have to spend extra time checking if the updates were atomic?

I would appreciate some insight or a use case.

Solution

I think that findOneAndUpdate carries out an atomic operation, so I'm assuming that updateOne does not.

Why are you assuming that?

findOneAndUpdate returns a document whereas updateOne does not (it just returns the _id if it has created a new document).

I think that's the main difference. So the use case of updateOne is when you don't need the document and want to save a bit of time and bandwidth.