MongoDB Firebase Cloud Functions Training – Fetch Single & All Record API: Read From MongoDB Like a Pro

Welcome to Part 19 of the MongoDB Firebase Cloud Functions Training series! In this episode, you’ll build two powerful GET endpoints using Firebase Cloud Functions—one to fetch all records, and another to fetch a single record by ID from your MongoDB Atlas database.

With proper token validation and clean data querying, this lesson completes the basic CRUD cycle, enabling dynamic data rendering in your frontend app or testing in Postman.

✅ What You’ll Learn in This Video:

✔️ Writing a GET Cloud Function to retrieve all documents from a MongoDB collection
✔️ Creating a second GET API to fetch a single record by its _id
✔️ Securing both endpoints using Firebase ID token validation
✔️ Formatting responses to return clean, frontend-ready data
✔️ Handling errors gracefully (e.g., record not found, invalid ID, or token missing)

💡 Why This Step Matters:

🔹 Empowers your frontend to dynamically list or display details of stored data
🔹 Closes the loop on the Create → Read cycle for full data workflows
🔹 Reinforces secure token-protected database querying via Cloud Functions