Flask werkzeug.exceptions.BadRequest: 400 Bad Request: Failed to decode JSON object: None

今天在部署flask服务的时候发现了下面的问题：

param = dict(args=request.args, post=request.json)
  File "/root/anaconda3/lib/python3.8/site-packages/werkzeug/wrappers/request.py", line 540, in json
    # JSON
  File "/root/anaconda3/lib/python3.8/site-packages/werkzeug/wrappers/request.py", line 571, in get_json
    :param force: Ignore the mimetype and always try to parse JSON.
  File "/root/anaconda3/lib/python3.8/site-packages/flask/wrappers.py", line 129, in on_json_loading_failed
    raise BadRequest(f"Failed to decode JSON object: {e}")
werkzeug.exceptions.BadRequest: 400 Bad Request: Failed to decode JSON object: None

解决方法

可能是我的版本过高导致的，所以回退到2.0版本，因为我的flask也是2.0版本哈。

pip install Werkzeug==2.0