text: from aiohttp import web
  app = web.Application()
  
  async def index(request):
      res = {"key": "value", "my": "data"}
      return web.json_response(res)
      
  app.router.add_get('/', index)
  
  if __name__ == '__main__':
      web.run_app(app, host='0.0.0.0', port=8888)