fix: make get_domains parameters optional

[tien]

I'm trying to generate a client from this OpenAPI spec. And it appears that the parameter type for get_domains is incorrect.

[yubiuser]

Please base your PR on and target to development branch.

[tien]

Looks like the validator is just buggy and won't accept the allOf syntax :v

So I've replaced it with another one, also with added bonus of this one working with relative paths.

[DL6ER]

This is too much of a change, looking at various documentation, e.g. Swagger it seems what you want to add is not valid/possible plus invalid syntax.

Instead of

        parameters:
          - allOf:
            - $ref: 'domains.yaml#/components/parameters/type'
            - required: false
          - allOf:
            - $ref: 'domains.yaml#/components/parameters/kind'
            - required: false
          - allOf:
            - $ref: 'domains.yaml#/components/parameters/domain'
            - required: false

it should rather be

        parameters:
            - $ref: 'domains.yaml#/components/parameters/type'
              required: false
            - $ref: 'domains.yaml#/components/parameters/kind'
              required: false
            - $ref: 'domains.yaml#/components/parameters/domain'
              required: false

but even this is invalid because of

(screenshot from my link above) and would need to be added further up in this endpoint definition (there is already a parameters object).

The validator change you suggest does not solve the issue, it just doesn't check for this requirement of the OpenAPI specs and, hence, is incomplete.

---

What we'd need instead is to define new endpoints and use referencing to keep copy-pasting minimal:

+GET /domains
+GET /domains/{type}
+GET /domains/{type}/{kind}
 GET /domains/{type}/{kind}/{domain}

All other (POST, DELETE, PUT) require the parameters. And this then also for

+GET /groups
 GET /groups/{name}
+GET /clients
 GET /clients/{client}
+GET /lists
 GET /lists/{list}