sample.py

import motor

from functools import partial
from tornado import gen, ioloop, web


class MyHandler(web.RequestHandler):

    @gen.coroutine
    def get(self):
        count = yield self.settings['db'].collection.count()
        self.finish(str(count))


@gen.coroutine
def validate_data(db):
    yield db.collection.insert({'foo': 'bar'})
    count = yield db.collection.count()
    print(count)


def main():
    db = motor.MotorClient().test
    app = web.Application([(r'/', MyHandler)], db=db)
    app.listen(8082)
    validate_partial = partial(validate_data, db)
    periodic_callback = ioloop.PeriodicCallback(validate_partial, 1000)
    periodic_callback.start()
    loop = ioloop.IOLoop.current()
    loop.start()

if __name__ == '__main__':
    main()