Skip to main content

Invalid body

typehttps://docs.frem.sh/reference/api/errors/invalid-body
HTTP status400 Bad Request

What it means

The request was malformed, or a field failed validation.

Example detail messages returned with this error:

  • Body must be an object.
  • Body must be an object.
  • Body must be an object.

What to do

The body parsed but did not match the endpoint’s schema. Compare it with the request schema in the OpenAPI spec.

Response shape

All fremforge API errors are RFC 9457 problem+json:

{
  "type": "https://docs.frem.sh/reference/api/errors/invalid-body",
  "title": "Bad Request",
  "status": 400,
  "detail": "..."
}

Branch on type, not on title or detail - those are human-readable and may be reworded.