from sanic.response import json

app = Sanic(__name__)

async def task():
print('func invoke!')


@app.route("/")
async def test(request):
loop = request.app.loop
loop.create_task(task())
await asyncio.sleep(5)
return json({'hello': 'world'})

if __name__ == "__main__":
app.run(host="0.0.0.0", port=8000, workers=2)