FastAPI in Production: From main.py to a Public URL

[julia-kafarska]

Full tutorial with screenshots: https://blog.light-cloud.com/tutorials/deploy-a-fastapi-app

Deploy a FastAPI app to Light Cloud without a Dockerfile: requirements.txt and main.py are enough, uvicorn is started on the right port, and the Swagger docs at /docs are live in about 90 seconds.

Level: Beginner · Time: about 15 minutes · Plan: Free · Stack: Python, FastAPI, Pydantic, uvicorn

Steps

• Step 1: Create the project and a virtual environment
• Step 2: Write the API
• Step 3: Run it on your machine
• Step 4: Push it to GitHub
• Step 5: Deploy it
• Step 6: Use the live API and its docs

Source code: https://github.com/light-cloud-com/tutorial-fastapi-api

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Questions, problems with a step, or a screen that no longer matches the console? Reply here. Every tutorial is re-run on the live platform before it is published, and this thread is where fixes get discussed.