health

query · in the family Open doors

What it does

Is the service alive — the plainest possible check. Reads nothing of yours.

A liveness read — no contract version required (reads may omit, SPEC_ENVELOPE).

Who may call it

No key needed for this call.

Returns

String String! — Text.

Example request

query ExampleHealth {
  health
}

Example response

{
  "data": {
    "health": "ok"
  },
  "extensions": {
    "at": {
      "callId": "01EXAMPLE-CALL-ID",
      "version": {
        "requested": null,
        "serviced": {
          "name": "genesis",
          "number": 0
        }
      }
    }
  }
}

Errors this call can answer

• RATE_LIMIT/THROTTLED — Too many requests in a short time. (RATE_LIMIT)