What are the best practices for Firestore transactions?

What are the best practices for Firestore transactions?

When using Firestore transactions, it's important to keep the following best practices in mind: 1. Keep transactions short to avoid contention. 2. Minimize the number of reads and writes within a transaction. 3. Use transactions for operations that require atomicity. 4. Handle potential failures gracefully.

Can you explain why keeping transactions short is important?

Keeping transactions short is crucial because it reduces the likelihood of contention between multiple clients trying to access the same data. Longer transactions can lead to increased latency and potential timeouts.

What happens if a transaction fails?

If a transaction fails, Firestore automatically rolls back any changes made during that transaction. You can also implement retry logic in your application to attempt the transaction again.

Are there any specific use cases where transactions are necessary?

Yes, transactions are necessary in scenarios where you need to ensure that multiple reads and writes occur atomically, such as updating user balances or managing inventory counts.