from __future__ import absolute_import
from tornado import httpserver
from tornado.web import Application, RequestHandler
from tornado.gen import coroutine
from redis_client import *


_queue = AsyncRedis('redis://localhost:6379/1')


class HelloworldHandler(RequestHandler):
    @coroutine
    def get(self):
        next_cmd = yield _queue.invoke(redis_lpop('key'))
        #do sth.
        self.write(next_cmd)
        self.finish()


def main():
    app = Application([
        ('/', HelloworldHandler),
    ])

    server = httpserver.HTTPServer(app)
    server.listen(8000)
    IOLoop.instance().start()


if __name__ == "__main__":
    main()