Over the past few hours, I've been deep into refactoring one of my FastAPI projects with a clear goal: make it production-ready and showcase it live through my portfolio at nicolasandrescl.pythonanywhere.com 💡
Here’s what I accomplished:
✅ What Changed
Refactored the entire project structure into clearly separated layers:
routers/ for endpoints
repository/ for data access logic
schemas/ for Pydantic models
models/ for SQLAlchemy models
services/ for business logic
core/ for configuration and DB connections
Integrated a MySQL database using SQLAlchemy and PyMySQL for full persistence.
Switched to Pydantic v2, updating all .dict() references to .model_dump() to stay aligned with the latest standards.
Added error handling and validation, including custom messages and constraints (e.g. rejecting names under 3 characters).
Wrote an integration test for user creation using pytest + TestClient, and installed httpx, email-validator, cryptography, and other missing dependencies.
Resolved merge conflicts cleanly and pushed the finalized version to GitHub.
Updated the README.md with architecture overview, setup instructions, and feature highlights.
🔧 What’s Next?
I’m preparing to deploy the API backend publicly so that visitors to my portfolio can see it in action. The /user/ endpoint will be testable directly from Swagger UI.
Live site: 🌐 nicolasandrescl.pythonanywhere.com Repo: 📁 github.com/NicolasAndresCL/FastAPI
🛠️ Stack
FastAPI, SQLAlchemy, PyMySQL
MySQL, Pydantic v2, Uvicorn
Pytest, TestClient, HTTPX
🧵 Let’s Connect
If you're working on API design, backend structure, or transitioning to production, I'd love to exchange ideas!
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