Micro Free Course — 100% Free Learning

All lessons in this module are free to learn. Sign in with Google to save your progress.

Build Real APIs

Six end-to-end builds: Notes API with auth + tests; URL shortener (paired with System Design); async webhook handler with retries; paginated search with caching; file-upload service with S3 + signed URLs; deploy FastAPI to production.

Module Progress0% Complete

678 min total

6 Lessons

0 Completed

Module Content

Build 1 — Notes API (Full CRUD + Auth + Tests)

Build a complete notes API with JWT auth, per-user CRUD, note sharing, tests, and OpenAPI docs.

112 minSubmission

Start

Build 2 — URL Shortener Service

Build a URL shortener with custom slugs, click tracking, expiry, and Redis rate limiting.

113 minSubmission

Start

Build 3 — Async Webhook Handler

Build an async webhook receiver with HMAC verification, fast ACK, and retried ARQ processing.

113 minSubmission

Start

Build 4 — Paginated Search API with Caching

Build a paginated full-text search API with cursor pagination and Redis caching.

113 minSubmission

Start

Build 5 — File-Upload Service (S3 + Signed URLs)

Build a file-upload service with presigned S3 URLs (MinIO for local dev) and upload tracking.

113 minSubmission

Start

Build 6 — Deploy to Production

Deploy a previous build to Fly.io with Docker, managed Postgres, secrets, and migrations.