{
  "operationId": "SubmitAsyncTransaction",
  "method": "POST",
  "path": "/transactions_async",
  "statusCode": "503",
  "example": {
    "summary": "Historical DB Is Too Stale",
    "value": {
      "type": "stale_history",
      "title": "Historical DB Is Too Stale",
      "status": 503,
      "detail": "This horizon instance is configured to reject client requests when it can determine that the history database is lagging too far behind the connected instance of Stellar-Core or read replica. It's also possible that Stellar-Core is out of sync. Please try again later.",
      "extras": {
        "envelope_xdr": ""
      }
    }
  }
}