Cloud Function To Export Firestore Backup Data. Using Firebase-admin Or @google-cloud/firestore?

Answer :

The way you're accessing the admin client is correct as far as I can tell.

const client = new admin.firestore.v1.FirestoreAdminClient({}); 

However, you probably won't get any TypeScript/intellisense help beyond this point since the Firestore library does not actually define detailed typings for v1 RPCs. Notice how they are declared with any types: https://github.com/googleapis/nodejs-firestore/blob/425bf3d3f5ecab66fcecf5373e8dd03b73bb46ad/types/firestore.d.ts#L1354-L1364

Here is an implementation I'm using that allows you to do whatever operations you need to do, based on the template provided by firebase here https://firebase.google.com/docs/firestore/solutions/schedule-export

In my case I'm filtering out collections from firestore I don't want the scheduler to automatically backup

const { Firestore } = require('@google-cloud/firestore')  const firestore = new Firestore() const client = new Firestore.v1.FirestoreAdminClient() const bucket = 'gs://backups-user-data'  exports.scheduledFirestoreBackupUserData = async (event, context) => {   const databaseName = client.databasePath(     process.env.GCLOUD_PROJECT,     '(default)'   )    const collectionsToExclude = ['_welcome', 'eventIds', 'analyticsData']    const collectionsToBackup = await firestore.listCollections()     .then(collectionRefs => {       return collectionRefs         .map(ref => ref.id)         .filter(id => !collectionsToExclude.includes(id))     })     return client     .exportDocuments({       name: databaseName,       outputUriPrefix: bucket,       // Leave collectionIds empty to export all collections       // or define a list of collection IDs:       // collectionIds: ['users', 'posts']       collectionIds: [...collectionsToBackup]     })     .then(responses => {       const response = responses[0]       console.log(`Operation Name: ${response['name']}`)       return response     })     .catch(err => {       console.error(err)     }) }