Request Parser Failing when calling with latest version of axios - 0.21.3

[pavs94]

from flask_restful import reqparse

parser = reqparse.RequestParser()
parser.add_argument('exchId',type=int, help='Missing param: exchId (int)', required="true")
parser.add_argument('side',type=str, help='Missing param: side (str)', required="true")
parser.add_argument('symbol',type=str, help='Missing param: symbol (str)', required="true")
parser.add_argument('order_type',type=str, help='Missing param: order_type (str)', required="true")
parser.add_argument('qty',type=float, help='Missing param: qty (float)', required="true")
parser.add_argument('time_in_force',type=str, help='Missing param: time_in_force (str)', required="true")

args = parser.parse_args()
exchId=args["exchId"]
side=args["side"]
symbol=args["symbol"]
order_type=args["order_type"]
qty=args["qty"]
time_in_force=args["time_in_force"]

This sample code has been working for me in a deployed app. today all of a sudden, the app returns

 File "C:\Users\myUser\Desktop\myApp\Lib\site-packages\flask\app.py", line 2464, in __call__
    return self.wsgi_app(environ, start_response)
  File "C:\Users\myUser\Desktop\myApp\Lib\site-packages\flask\app.py", line 2450, in wsgi_app
    response = self.handle_exception(e)
  File "C:\Users\myUser\Desktop\myApp\Lib\site-packages\flask_restful\__init__.py", line 272, in error_router
    return original_handler(e)
  File "C:\Users\myUser\Desktop\myApp\Lib\site-packages\flask_cors\extension.py", line 161, in wrapped_function
    return cors_after_request(app.make_response(f(*args, **kwargs)))
  File "C:\Users\myUser\Desktop\myApp\Lib\site-packages\flask\app.py", line 1867, in handle_exception
    reraise(exc_type, exc_value, tb)
  File "C:\Users\myUser\Desktop\myApp\Lib\site-packages\flask\_compat.py", line 38, in reraise
    raise value.with_traceback(tb)
  File "C:\Users\myUser\Desktop\myApp\Lib\site-packages\flask\app.py", line 2447, in wsgi_app
    response = self.full_dispatch_request()
  File "C:\Users\myUser\Desktop\myApp\Lib\site-packages\flask\app.py", line 1952, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "C:\Users\myUser\Desktop\myApp\Lib\site-packages\flask_restful\__init__.py", line 272, in error_router
    return original_handler(e)
  File "C:\Users\myUser\Desktop\myApp\Lib\site-packages\flask_cors\extension.py", line 161, in wrapped_function
    return cors_after_request(app.make_response(f(*args, **kwargs)))
  File "C:\Users\myUser\Desktop\myApp\Lib\site-packages\flask\app.py", line 1821, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "C:\Users\myUser\Desktop\myApp\Lib\site-packages\flask\_compat.py", line 38, in reraise
    raise value.with_traceback(tb)
  File "C:\Users\myUser\Desktop\myApp\Lib\site-packages\flask\app.py", line 1950, in full_dispatch_request
    rv = self.dispatch_request()
  File "C:\Users\myUser\Desktop\myApp\Lib\site-packages\flask\app.py", line 1936, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "C:\Users\myUser\Desktop\myApp\Lib\site-packages\flask_restful\__init__.py", line 468, in wrapper
    resp = resource(*args, **kwargs)
  File "C:\Users\myUser\Desktop\myApp\Lib\site-packages\flask\views.py", line 89, in view
    return self.dispatch_request(*args, **kwargs)
  File "C:\Users\myUser\Desktop\myApp\Lib\site-packages\flask_restful\__init__.py", line 583, in dispatch_request
    resp = meth(*args, **kwargs)
  File "C:\Users\myUser\Desktop\myApp\Lib\site-packages\flask_jwt_extended\view_decorators.py", line 108, in wrapper
    return fn(*args, **kwargs)
  File "C:\Users\myUser\Desktop\myApp\sp-windows-backend\app.py", line 3671, in put
    args = parser.parse_args()
  File "C:\Users\myUser\Desktop\myApp\Lib\site-packages\flask_restful\reqparse.py", line 328, in parse_args
    value, found = arg.parse(req, self.bundle_errors)
  File "C:\Users\myUser\Desktop\myApp\Lib\site-packages\flask_restful\reqparse.py", line 184, in parse
    source = self.source(request)
  File "C:\Users\myUser\Desktop\myApp\Lib\site-packages\flask_restful\reqparse.py", line 129, in source
    values.update(value)
  File "C:\Users\myUser\Desktop\myApp\Lib\site-packages\werkzeug\datastructures.py", line 627, in update
    for key, value in iter_multi_items(other_dict):
ValueError: not enough values to unpack (expected 2, got 1)

[pavs94]

This error is coming in every app either windows or ubuntu across different python versions and causing all requests to fail for some reason.

[pavs94]

Additional diagnoses suggest the error comes when calling the API from Axios. Calling it directly from the postman seems to work.

[pavs94]

Using the version of axios - 0.21.1 works. The latest version of axios - 0.21.3 does not work. I tested calling, on a browser and node.js app; the Flask API gives the above error with the latest version of axios which was updated 10 hours ago. Going to use 0.21.1 axios until a fix is implemented.