pullJetpacks

Pulls (downloads) a list of Jetpack items that have been updated since the last sync.

This method implements incremental sync by querying only items that changed after lastSynced. This minimizes network usage and improves sync performance.

Query Logic

Firestore.collection("dev.atick.jetpack/jetpacks/{userId}")
    .where("lastUpdated", ">", lastSynced)
    .get()

Soft Deletes

Deleted items (where deleted = true) are included in the results. This allows the local database to properly handle deletions that occurred on other devices.

Performance

• Returns only changed items (not the entire dataset)

• Firestore indexes should be configured for the lastUpdated field

• Results are ordered by lastUpdated ascending

Example

suspend fun syncPull() {
    val userId = getCurrentUserId()
    val lastSync = preferences.getLastSyncTimestamp()
    val updates = firebaseDataSource.pullJetpacks(userId, lastSync)

    updates.forEach { remote ->
        localDataSource.upsertJetpack(remote.toEntity())
    }

    preferences.setLastSyncTimestamp(System.currentTimeMillis())
}

Parameters

Throws