Spring Boot 3 Health Response

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://spring.io/schema/boot/3/health",
  "title": "Spring Boot 3 Health Response",
  "description": "Health status response returned by Spring Boot 3 Actuator /health endpoint. Aggregates all registered HealthIndicator results into a single response.",
  "type": "object",
  "properties": {
    "status": {
      "type": "string",
      "description": "Overall application health status aggregated from all health indicators.",
      "enum": ["UP", "DOWN", "OUT_OF_SERVICE", "UNKNOWN"]
    },
    "components": {
      "type": "object",
      "description": "Health status of individual components keyed by component name.",
      "additionalProperties": {
        "$ref": "#/$defs/ComponentHealth"
      }
    }
  },
  "required": ["status"],
  "$defs": {
    "ComponentHealth": {
      "title": "Component Health",
      "description": "Health status for a single application component such as database, disk space, or message broker.",
      "type": "object",
      "properties": {
        "status": {
          "type": "string",
          "description": "Component health status.",
          "enum": ["UP", "DOWN", "OUT_OF_SERVICE", "UNKNOWN"]
        },
        "details": {
          "type": "object",
          "description": "Component-specific health details (database name, validation query, free disk space, etc.).",
          "additionalProperties": true
        },
        "components": {
          "type": "object",
          "description": "Nested sub-component health for composite indicators.",
          "additionalProperties": {
            "$ref": "#/$defs/ComponentHealth"
          }
        }
      },
      "required": ["status"]
    }
  }
}