sync like feature?

[Prathik-Jain]

Is it possible to add a feature where I run firestore-import-export as a cronjob, So that it reads only what is changed since the last update and update the file with the same documents? Instead of reading the thousands of documents each time I run it.

[dimoreira]

@Prathik-Jain I think the best solution for this is to run your firestore-import-export as a Firebase Cloud Function to listen for changes in the collections and export a new file with changes (or update an already created file).

[Prathik-Jain]

@dimoreira It might be a solution for smaller data stores, which do not update frequently. It might get pretty expensive quickly, otherwise.

[dimoreira]

@Prathik-Jain The free-tier for the Firebase Cloud Functions is pretty big. If you listen for insertions / changes at each document that get added / updated, you can update some kind of batch file on Cloud Storage that can be read from time to time by a cron **cloud function** to generate the new file based on the saved / batched.

Makes sense?