Week 02 — Deployment & API Engineering

Goal: Take a Python function from your laptop to a live, observable, authenticated API on the internet — in one week.

By the end of Week 2 you will have built and deployed a production-grade FastAPI service with Google OAuth, Docker containers, Redis caching, Prometheus metrics, and Grafana dashboards. You will also run local LLMs on your own machine.

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What You'll Build

code

Your laptop
  └── FastAPI app (Python)
        ├── Google OAuth 2.0 (authentication)
        ├── Redis (caching + rate limiting)
        ├── Prometheus + OpenTelemetry (metrics & traces)
        └── Docker container
              └── Deployed → HuggingFace Spaces / Render / Railway
                    └── Grafana dashboard (live monitoring)

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Topics This Week

#	Topic	What You'll Learn
01	FastAPI Fundamentals	Build REST APIs with auto docs
02	CORS & Middleware	Handle cross-origin, rate limiting
03	Google OAuth 2.0	Secure endpoints with real auth
04	FastAPI Advanced	WebSockets, background tasks, DI
05	Config Management	.env, secrets, 12-factor app
06	Docker & Compose	Containerize everything
07	Deployment Platforms	HuggingFace, Render, Railway
08	Logging & Testing	structlog, pytest, coverage
09	Observability	Prometheus, OpenTelemetry, Grafana
10	CloudFlare Tunnels	Expose localhost to the internet
11	Local LLMs	Run Ollama & LM Studio locally
12	Redis Caching	Cache responses, manage sessions

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Labs This Week

Lab	Title	Skills
Lab 2.1	Gemma API on HuggingFace Spaces + Google Auth	FastAPI · HuggingFace · OAuth
Lab 2.2	FastAPI Observability + Grafana Dashboard	Prometheus · OpenTelemetry · Grafana

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Prerequisites

• Completed Week 1 (UV, Git, basic Python)
• Python 3.11+ installed via UV
• Docker Desktop installed
• A Google account (for OAuth)
• A HuggingFace account (free)

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Mental Model for This Week

Think of it in three layers:

code

┌─────────────────────────────────────┐
│  Layer 3: OBSERVABILITY             │  ← Know what's happening
│  Prometheus · Grafana · Loki        │
├─────────────────────────────────────┤
│  Layer 2: RUNTIME                   │  ← Keep it running
│  Docker · Redis · CloudFlare        │
├─────────────────────────────────────┤
│  Layer 1: APPLICATION               │  ← Make it work
│  FastAPI · OAuth · Config           │
└─────────────────────────────────────┘

Build bottom-up. Get the app working first, then containerize, then observe.

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Week 2 in one sentence

FastAPI + Docker + Prometheus = production-ready API. Everything else this week supports these three pillars.