GCP Cloud Functions Google Cloud Functions is a serverless execution environment for building event-driven applications. Write single-purpose functions that respond to HTTP requests, Pub/Sub messages, Cloud Storage events, or Firestore changes — no infrastructure to manage. Core Concepts - HTTP Function — triggered by HTTP requests, returns a response - Event Function — triggered by cloud events (Pub/Sub, Storage, Firestore) - Gen 2 — latest version, built on Cloud Run, longer timeouts, concurrency - Trigger — the event source that invokes the function - Runtime — language environment (Node.j…