How can I update more than 500 docs in Firestore using Batch?

Question

I\'m trying to update a field timestamp with the Firestore admin timestamp in a collection with more than 500 docs.

const batch = d         


        

Answer 1

I liked this simple solution using typescript:

const users = await db.collection('users').get()

const batches = _.chunk(users.docs, 500).map(userDocs => {
    const batch = db.batch()
    userDocs.forEach(doc => {
        batch.set(doc.ref, { field: 'myNewValue' }, { merge: true })
    })
    return batch.commit()
})

await Promise.all(batches)

Just remember to add import * as _ from "lodash" at the top. Based on this answer.