PaperParser/app/blueprints/api/tasks/tasks.py

import time

from celery import shared_task
import asyncio

from paper.parser import PaperParser
from app.models.task import Task
from app.extensions import db
from .handlers import run_state, failure_state, success_state

async def add_to_group(session, task, task_self):
    async with PaperParser(session.name) as parser:
        await parser.invite_users(session.users, task.url, task_self)

async def sending_message(session, task, task_self):
    async with PaperParser(session.name) as parser:
        await parser.send_messages(session.users, task.message, task.file, task_self)

@shared_task(bind=True)
def add_to_group_task(self, task_id):
    try:
        task: Task = Task.query.get(task_id)
        run_state(self.request.id, task_id)

        session = task.session
    
        time.sleep(10)

        asyncio.run(
            add_to_group(session, task, self)
        )
    
    except Exception as e:
        failure_state(task_id, e)
        raise e
    
    else:
        success_state(task_id)



@shared_task(bind=True)
def send_messages_task(self, task_id):
    task: Task = Task.query.get(task_id)

    session = task.session
    users = session.users