run background tasks or scheduled jobs

How to

• Start periodic or long-running tasks from lifespan using asyncio.create_task(...). Cancel and await on shutdown.

Example

import asyncio

async def schedule_tasks():
    while True:
        # do work
        await asyncio.sleep(60)

async def lifespan(app):
    task = asyncio.create_task(schedule_tasks())
    yield
    task.cancel()
    try:
        await task
    except asyncio.CancelledError:
        pass

References

• http/lifespan.md:1