Im looking to make my Flask based API case insensitive for all incoming payloads. rather than having to apply this to all api-route functions i want to apply this to the @app.before_request decorator, such that for all incoming requests with json payloads (POSTs and PUTs) I directly edit the payload before it is handled by the applicable app.route function.
POST {"x":1, "Y":2} Should be formatted to POST {"x":1, "y":2} for request endpoints, but I can't seem to make this happen.
@app.before_request
def before_request():
    if request.json:
        data = RecusivelyLowerKeys(request.get_json())
        request.data = json.dumps(ldata)
so far this approach hasn't worked and the original request payload seems static.
Any tips or alternative approaches would be appreciated thanks.