{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/nagios/main/json-schema/nagios-check-result-schema.json",
  "title": "Nagios Check Result",
  "description": "Canonical Nagios passive/active check result payload as accepted by NRDP, NSCA, and NCPA.",
  "type": "object",
  "required": ["hostname", "state", "output"],
  "properties": {
    "type": { "type": "string", "enum": ["host", "service"] },
    "hostname": { "type": "string" },
    "servicename": { "type": "string", "description": "Required when type=service." },
    "state": {
      "type": "integer",
      "enum": [0, 1, 2, 3],
      "description": "For services: 0=OK, 1=WARNING, 2=CRITICAL, 3=UNKNOWN. For hosts: 0=UP, 1=DOWN, 2=UNREACHABLE, 3=UNKNOWN."
    },
    "output": { "type": "string", "description": "Plugin output text. Optional `| perfdata` suffix." },
    "checktime": { "type": "integer", "format": "int64", "description": "Unix timestamp." }
  },
  "allOf": [
    {
      "if": { "properties": { "type": { "const": "service" } }, "required": ["type"] },
      "then": { "required": ["servicename"] }
    }
  ]
}