What error to raise with wrong post request body?

Question

I am new to Django and have an endpoint that accepts post requests. The endpoint expects a specific set of keys in the post request body. What type of Exception should I raise if they don't provide the right keys? ValueError ? Thanks!

Answer 1

You should return a HttpResponseBadRequest response and include a helpful message with the invalid data. This returns a 400 response which is used to indicate issues with request data

If you are creating rest endpoints with Django it is worth using a library like https://www.django-rest-framework.org/ as it can simplify their creation and handle a lot of the leg work around validation, serialisation and reponses