Firebase Cloud Functions

Run backend code in response to events triggered by Firebase features and HTTPS requests, without managing servers. · Google Cloud · Compute

Official pricing Docs Report outdated info

Overview

Firebase Cloud Functions lets you run backend code in response to Firebase events or HTTP requests, with a generous free tier and seamless integration with other Firebase services.

Good fit

Use when you need to run backend code in response to Firebase events or HTTP requests without managing infrastructure.

event-driven apps
mobile backends
prototyping
Firebase-integrated projects

Not a fit

Avoid if you require long-running processes, custom runtimes, or need strict control over server resources and networking.

need for custom runtimes
long-running tasks
strict latency requirements

Quickstart · 4 steps

Install Firebase CLI and initialize your project with 'firebase init functions'.
Write your function code in 'functions/index.js' or 'functions/src/index.ts'.
Deploy your functions using 'firebase deploy --only functions'.
Test your functions via Firebase console or HTTP requests.