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Learn how FastAPI’s lifespan event handler centralises startup and shutdown logic, with a worked example using a SQLAlchemy async connection pool and notes on version and server requirements.
Goal: Deploy a FastAPI application in a containerized environment with limited CPU and memory while preserving the ability to iterate quickly during development. Constraint: The Uvicorn reload spawns a file‑watcher process that consumes extra CPU and file descriptors; in production this can conflict with resource limits and cause repeated restarts when the c
I tried to run FastAPI using uvicorn webserver but it throws an error. I run this command, uvicorn api:app --reload --host 0.0.0.0 but there is an error in the terminal. Uvicorn running on http://0.0.0.0:8000 (Press CTRL+C to quit) Started reloader process [23445] Error loading ASGI app. Could not import module "api". Stopping reloader process [23445]
I'm deploying a low-traffic Flask application (a few requests per minute at most) and want to minimize hosting costs without sacrificing correctness. The Flask documentation lists several deployment options but does not prescribe one, so the choice is left open. The candidates I'm weighing are: Gunicorn with a single gthread worker, Uvicorn with async views
Asked · 24 Jan 2023, 17:09 UTC
commented · 29 Jan 2023, 05:09 UTC
fastapi
python
flask