Can we use upsert with update pipeline?

Question

Can we use {upsert: true} for mongoDB update aggregation pipeline? Any examples would be very appreciated.

Answer 1

Yes, of course, it will work.

db.getCollection('tmp5').update({
    "someKey":"nonExisting"
}, [
    {
        "$set": {
            "name": "ValToUpdate"
        }
    }
], {
    upsert: true
})

Mongo Playground Sample