[python] tornado 오래 걸리는 작업

 import json

import tornado.ioloop

import tornado.web

from src.exec import Executor

class ShellHandler(tornado.web.RequestHandler):

    async def long_running_task(self):

        """

        get, post 로 호출 시 오래 걸리는 작업.

        """

        executor = Executor()

        stdout, stderr = await executor.run()

        return stdout, stderr

    async def post(self):

        data = self.request.body.decode('utf-8')

        try:

            json_data = json.loads(data)

            self.write(f'received => {json_data}')

        except json.JSONDecodeError:

            self.write(f'error => {data}')

    async def get(self):

        ip_address = self.request.remote_ip

        stdout, stderr = await self.long_running_task()

        self.write(f"{ip_address}<br>stdout={stdout}<br>stdout={stderr}")

def make_app():

    return tornado.web.Application([

        (r"/shell", ShellHandler),

    ])

if __name__ == "__main__":

    app = make_app()

    app.listen(8888)

    print("Server is listening on port 8888")

    tornado.ioloop.IOLoop.current().start()