sanic/examples/run_async.py

from sanic import Sanic
from sanic import response
from multiprocessing import Event
from signal import signal, SIGINT
import asyncio
import uvloop

app = Sanic(__name__)

@app.route("/")
async def test(request):
    return response.json({"answer": "42"})

asyncio.set_event_loop(uvloop.new_event_loop())
server = app.create_server(host="0.0.0.0", port=8000)
loop = asyncio.get_event_loop()
task = asyncio.ensure_future(server)
signal(SIGINT, lambda s, f: loop.stop())
try:
    loop.run_forever()
except:
    loop.stop()