RequestParser Error

[kennedyi]

I am building a flask application that leverages RequestParser. Using POST, Everything works as expected with werkzeug 2.0.3 but if 2.1.0 or higher is installed it returns {"message": "The browser (or proxy) sent a request that this server could not understand."} or if flask debug is on {"message": "Failed to decode JSON object: None"}

Is this by design and if so how can I resolve. Thanks.

[davidism]

Follow the issues on the relevant extensions:

• reqparse raises on any non-JSON request with Werkzeug 2.1.0 flask-restful/flask-restful#936
• Change to Request.get_json() in Werkzeug 2.1.0 breaks Argument.parse() python-restx/flask-restx#422

Note that Flask-Restful doesn't seem to be maintained, so it's more likely that Flask-Restx will get the fix, although it doesn't seem to have been maintained recently either. There are plenty of other API extensions for Flask that are active, including:

• https://github.com/marshmallow-code/flask-smorest
• https://github.com/4Catalyzer/flask-resty/
• https://github.com/greyli/apiflask
• https://github.com/plangrid/flask-rebar/

[kennedyi]

Thank you. I will check it out.