Flask request and application/json content type

Use request.get_json() and set force to True:

@menus.route("https://stackoverflow.com/", methods=["PUT", "POST"])
def new():
    return jsonify(request.get_json(force=True))

From the documentation:

By default this function will only load the json data if the mimetype is application/json but this can be overridden by the force parameter.

Parameters:

• force – if set to True the mimetype is ignored.

For older Flask versions, < 0.10, if you want to be forgiving and allow for JSON, always, you can do the decode yourself, explicitly:

from flask import json

@menus.route("https://stackoverflow.com/", methods=["PUT", "POST"])
def new():
    return jsonify(json.loads(request.data))