Error code

Not a point this ref can be read at

The `at` parameter asks for a point in history the ref has not reached, or below zero, or was sent on a write, which always happens now.

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

Code: AT_OUT_OF_RANGE
Management API: 400

What to do

Use a point from the ref's history, or leave at out to read its head.

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": "AT_OUT_OF_RANGE",
  "type": "https://coho-cms.com/errors/at-out-of-range",
  "title": "Not a point this ref can be read at",
  "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.