MongoDB Firebase Cloud Functions Training – API Action & Token Validations: Secure Your Backend

Welcome to Part 12 of the MongoDB Firebase Cloud Functions Training series! In this pivotal episode, you’ll implement API actions protected by token-based authentication. You’ll learn how to validate Firebase ID tokens within your Cloud Functions before allowing access to sensitive MongoDB operations.

This is the backbone of secure serverless development—ensuring that only verified users can trigger actions that affect your database.

✅ What You’ll Learn in This Video:

✔️ Writing protected HTTP Cloud Functions that receive frontend requests
✔️ Extracting and verifying ID tokens using Firebase Admin SDK
✔️ Handling invalid or expired tokens with appropriate responses
✔️ Connecting verified requests to MongoDB insert/update logic
✔️ Returning success/failure responses back to the client securely

💡 Why This Step Matters:

🔹 Ensures only authenticated users can perform backend operations
🔹 Adds security layers to every API interaction with MongoDB
🔹 Prepares your app for role-based access control (RBAC) and custom claims