Error code

The document does not match its content type

The entry's fields do not match its content type. The `errors` list gives each field and what is wrong with it.

Fig. 03 Ratchet and pawlThe wheel turns freely one way, and the pawl stops it turning back.

Code: VALIDATION_FAILED
Management API: 400

What to do

Correct the fields the errors list names. The project's generated types catch most of these before you send.

The response

Every refusal is an application/problem+json document. Its detail says what went wrong in that request; its type is this page.

{
  "code": "VALIDATION_FAILED",
  "type": "https://coho-cms.com/errors/validation-failed",
  "title": "The document does not match its content type",
  "status": 400,
  "detail": "What went wrong in this request, in a sentence.",
  "instance": "/v1/projects/…"
}

Every code

The error codes, in a table with a filter.