text: from aiohttp import web
  
  from service.handler import StopHandler
  from service.stop import Nitzerwint
  from service.db import DB
  
  db = DB()
  handler = StopHandler(Nitzerwint(), db)
  
  app = web.Application()
  app.add_routes([
      web.get('/get_pub_key', handler.get_pub_key),
      web.post('/sign', handler.sign),
      web.post('/verify', handler.verify)
  ])