fastapi

dev

• Run the webserver for local development with auto-reload
• Starts the server using Uvicorn
• By default server is exposed at

fastapi dev main.py

# Run uvicorn directly
uvicorn "main:app" --reload # main: the module/file; app: the object within the module

run

• Run for production
• Listens on 0.0.0.0 (from everywhere)

fastapi run main.py
fastapi run main.py --workers 4 # 1 manager process + 4 worker processes
fastapi run main.py --port 80 # port to be exposed
fastapi run main.py --proxy-headers # used when running behind a TLS Termination Proxy. It tells Uvicorn to trust the headers sent sent by that proxy telling that the application is running behind HTTPS
fastapi run main.py --root-path /api/v1 # tells the app that it is run behind a proxy and adds the /api/v1 prefix


# Run uvicorn directly
uvicorn "main:app" --host 0.0.0.0 --port 80
# main: the module/file
# app: the object created in the main module; app = FastAPI()
# Equivalente to "from main import app"