Make nullable fields non-required in creation endpoints

[swrichards]

Thema / Theme

Klantinteracties API

Omschrijving / Description

The request here is to make all nullable fields in resource creation endpoints non-required.

Whenever fields are marked both as required and as {type} or null in creation endpoints, the field has to be explicitly included in the payload and set to null. If the field is omitted, a validation error is given.

For example, voorkeursDigitaalAdres in partijenCreate is defined in this way (required, but also accepts null in lieu of an object):

Omitting the field from a create payload yields:

Invalid parameters:
{'code': 'required',
 'name': 'voorkeursDigitaalAdres',
 'reason': 'Dit veld is vereist.'}

Which is fixed by adding:

"voorkeursDigitaalAdres" : null

If a field is nullable, then null is a sane default value that the API can set for the client, without having to explicate the fields in the payload.

Toegevoegde waarde / Added value

The current behavior is undesirable because it makes constructing requests very verbose and generally raises the friction of building a valid request. This is especially visible in tests, where the current approach leads to the need for a lot of factories and fixtures. I would say providing sane defaults wherever possible makes for a better developer experience.

Aanvullende opmerkingen / Additional context

No response