While Next.js is great for the UI, the engine of your AI app often lives in Python. FastAPI has become the industry standard for serving ML models.
Why FastAPI?
- Speed: Built on Starlette and Pydantic, it's one of the fastest Python frameworks.
- Typing: Automatic validation and documentation with Swagger UI.
- Async: Native support for asynchronous requests.
The Dockerfile
Containerization ensures your dependencies (like Torch or Spacy) are consistent across environments.
FROM python:3.11-slim
WORKDIR /app
COPY requirements.txt .
RUN pip install -r requirements.txt
COPY . .
CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "80"]Scaling
Deploy to AWS ECS or Google Cloud Run to handle unpredictable traffic loads efficiently.