ReadonlycatalogueReadonlydataReadonlymetadatahelloworld/logincheck — validate the supplied credentials. Resolves only when
GENESIS confirms the login. Wrong credentials — which GENESIS answers with HTTP 200
and an error text in Status (or the token echoed as Username) — reject with a
RegionalstatistikApiError whose isAuthError (and loginRejected) is true; an
answer that confirms nothing rejects with RegionalstatistikParseError. Without
credentials GENESIS answers as the guest user ("Username": "GAST"), which
resolves: this does not demand credentials.
Optionallanguage: "de" | "en"helloworld/whoami — connectivity check; unauthenticated GET.
find/find— full-text search across object types.termmust be non-blank; needs an account (rejects withRegionalstatistikValidationErrorwithout one). Only theFindParamskeys are accepted unlessoptions.allowUnknownParams(P10).