Async Support

[simontorres]

I'm dealing with a problem that seems related with this library (full traceback at the end)

 File "/home/gsp/.local/lib/python3.8/site-packages/rest_framework_jwt/authentication.py", line 86, in authenticate
    if BlacklistedToken.is_blocked(token, payload):
  File "/home/gsp/.local/lib/python3.8/site-packages/rest_framework_jwt/blacklist/models.py", line 58, in is_blocked
    return BlacklistedToken.objects.filter(query).exists()

My project is web application that receives astronomical images and automatically triggers the reduction process and displays them in the browser.
So the django views run synchronously with gunicorn as the server. There is also a websocket service that runs independently with daphne (async). Same container and django app though. The problem happens when the backend sends a notification via websockets that a new file has "arrived" into the system and the frontend (react) requests /gsp/api/files/ to get an updated list of files.

I was wondering if there are plans to support async requests in the near future.

Here is the full traceback.

ERROR [2021-11-03 12:43:53,125] log Internal Server Error: /gsp/api/files/
Traceback (most recent call last):
  File "/usr/local/lib/python3.8/site-packages/django/core/handlers/exception.py", line 47, in inner
    response = get_response(request)
  File "/usr/local/lib/python3.8/site-packages/django/core/handlers/base.py", line 181, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/usr/local/lib/python3.8/site-packages/django/views/decorators/csrf.py", line 54, in wrapped_view
    return view_func(*args, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/django/views/generic/base.py", line 70, in view
    return self.dispatch(request, *args, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/rest_framework/views.py", line 509, in dispatch
    response = self.handle_exception(exc)
  File "/usr/local/lib/python3.8/site-packages/rest_framework/views.py", line 469, in handle_exception
    self.raise_uncaught_exception(exc)
  File "/usr/local/lib/python3.8/site-packages/rest_framework/views.py", line 480, in raise_uncaught_exception
    raise exc
  File "/usr/local/lib/python3.8/site-packages/rest_framework/views.py", line 497, in dispatch
    self.initial(request, *args, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/rest_framework/views.py", line 414, in initial
    self.perform_authentication(request)
  File "/usr/local/lib/python3.8/site-packages/rest_framework/views.py", line 324, in perform_authentication
    request.user
  File "/usr/local/lib/python3.8/site-packages/rest_framework/request.py", line 227, in user
    self._authenticate()
  File "/usr/local/lib/python3.8/site-packages/rest_framework/request.py", line 380, in _authenticate
    user_auth_tuple = authenticator.authenticate(self)
  File "/home/gsp/.local/lib/python3.8/site-packages/rest_framework_jwt/authentication.py", line 86, in authenticate
    if BlacklistedToken.is_blocked(token, payload):
  File "/home/gsp/.local/lib/python3.8/site-packages/rest_framework_jwt/blacklist/models.py", line 58, in is_blocked
    return BlacklistedToken.objects.filter(query).exists()
  File "/usr/local/lib/python3.8/site-packages/django/db/models/query.py", line 808, in exists
    return self.query.has_results(using=self.db)
  File "/usr/local/lib/python3.8/site-packages/django/db/models/sql/query.py", line 552, in has_results
    return compiler.has_results()
  File "/usr/local/lib/python3.8/site-packages/django/db/models/sql/compiler.py", line 1145, in has_results
    return bool(self.execute_sql(SINGLE))
  File "/usr/local/lib/python3.8/site-packages/django/db/models/sql/compiler.py", line 1173, in execute_sql
    cursor = self.connection.cursor()
  File "/usr/local/lib/python3.8/site-packages/django/utils/asyncio.py", line 24, in inner
    raise SynchronousOnlyOperation(message)
django.core.exceptions.SynchronousOnlyOperation: You cannot call this from an async context - use a thread or sync_to_async.