domain.invalid_host

The host name cannot be used: not a valid DNS name, an apex domain (a CNAME is required), a wildcard, a name under the platform's own domain, or a reserved name.

Code	`domain.invalid_host`
HTTP status	422
Category	`Unprocessable`
Arguments	`reason` (`Malformed`, `Apex`, `Wildcard`, `PlatformDomain`, `Reserved`, `IpAddress`)

Example response

application/problem+json

{
  "type": "https://docs.test.konsolutelab.uk/errors/domain.invalid_host",
  "title": "…",
  "status": 422,
  "code": "domain.invalid_host",
  "args": {},
  "traceId": "00-4bf92f3577b34da6a3ce929d0e0e4736-00f067aa0ba902b7-01",
  "instance": "/api/v1/…"
}

Handling it

Branch on code, not on title or the status alone, and log traceId. Codes are stable; new codes may appear, so fall back on the HTTP status for a code you do not know. See Handling errors and the list of codes.