Bulk upsert in MongoDB using mongoose

Question

Is there any option to perform bulk upserts with mongoose? So basically having an array and insert each element if it not exists or update it if it exists? (I am using custo

Answer 1

await Model.bulkWrite(docs.map(doc => ({
    updateOne: {
        filter: {id: doc.id},
        update: doc,
        upsert: true
    }
})))

---

Or more verbose:

const bulkOps = docs.map(doc => ({
    updateOne: {
        filter: {id: doc.id},
        update: doc,
        upsert: true
    }
}))

Model.bulkWrite(bulkOps)
        .then(bulkWriteOpResult => console.log('BULK update OK:', bulkWriteOpResult))
        .catch(err => console.error('BULK update error:', err))

https://stackoverflow.com/a/60330161/5318303