@login_required with Flask 2.0 Async Routes, does not return a valid response

Describe the bug When using @login_required with Flask 2.0 Async Routes I get an error.

To Reproduce Steps to reproduce the behavior: Flask 2.0.1 Werkzeug 2.0.1 Flask-Login 0.5.0

@api.route('/v1.0/check_async2')
async def check_async2():
	await asyncio.sleep(1)
	return "Hello"

@api.route('/v1.0/check_async3')
@login_required
async def check_async3():
	await asyncio.sleep(1)
	return "Hello"

Expected behavior Both should return “Hello”. However the second (check_async3) returns the following error:

"TypeError: The view function did not return a valid response. The return type must be a string, dict, tuple, Response instance, or WSGI callable, but it was a coroutine."

[SebastianB12]

Could you give us an indication, when the release will happen? Looking forward to the Async functionality 😃

[cathaypacific8747]

Same, took me a while to pinpoint the exact issue. Solved it temporarily by using

from flask import current_app
from flask_login import current_user

@api.route('/v1.0/check_async3')
async def check_async3():
    if not current_user.is_authenticated:
        return current_app.login_manager.unauthorized()
    await asyncio.sleep(1)
    return "Hello"