[Python] Ratelimit in Fastapi

How to ratelimit API endpoint request in Fastapi application ? I need to ratelimit API call 5 request per second per user and exceeding that limit blocks that particular user for 60 seconds.

In main.py

def get_application() -> FastAPI:
application = FastAPI(title=PROJECT_NAME, debug=DEBUG, version=VERSION)
application.add_event_handler(
"startup", create_start_app_handler(application))
application.add_event_handler(
"shutdown", create_stop_app_handler(application))
return application
app = get_application()


In events.py

def create_start_app_handler(app: FastAPI) -> Callable:
async def start_app() -> None:

redis = await aioredis.create_redis_pool("redis://localhost:8080")
FastAPILimiter.init(redis)
return start_app


In endpoint

@router.post('/user',
tags=["user"],
name="user:user", dependencies=[Depends(RateLimiter(times=5, seconds=60))])
***code****


Run from this file test.py.

import uvicorn

from app.main import app

if __name__ == "__main__":
uvicorn.run("test:app", host="0.0.0.0", port=8000, reload=True)


I edited as above but got following error.

File "****ite-packages\starlette\routing.py", line 526, in lifespan
async for item in self.lifespan_context(app):
File "****site-packages\starlette\routing.py", line 467, in default_lifespan
await self.startup()
File "****site-packages\starlette\routing.py", line 502, in startup
await handler()
File "****app\core\services\events.py", line 15, in start_app
redis = await aioredis.create_redis_pool("redis://localhost:8080")
File "****\site-packages\aioredis\commands\__init__.py", line 188, in create_redis_pool
pool = await create_pool(address, db=db,
File "****site-packages\aioredis\pool.py", line 58, in create_pool
await pool._fill_free(override_min=False)
File "C****\site-packages\aioredis\pool.py", line 383, in _fill_free
conn = await self._create_new_connection(self._address)
File "****site-packages\aioredis\connection.py", line 111, in create_connection
reader, writer = await asyncio.wait_for(open_connection(
File "****\asyncio\tasks.py", line 455, in wait_for
return await fut
File "****\site-packages\aioredis\stream.py", line 23, in open_connection
transport, _ = await get_event_loop().create_connection(
File "****\asyncio\base_events.py", line 1033, in create_connection
raise OSError('Multiple exceptions: {}'.format(
OSError: Multiple exceptions: [Errno 10061] Connect call failed ('::1', 8080, 0, 0), [Errno 10061] Connect call failed ('127.0.0.1', 8080)

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