{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-search/google-cloud-cdn/refs/heads/main/json-schema/cdn-backendservice.json",
  "title": "Google Cloud CDN Backend Service",
  "description": "Represents a CDN-enabled backend service resource, including its CDN caching policy, backends, health checks, and protocol configuration.",
  "type": "object",
  "properties": {
    "id": {
      "type": "string",
      "description": "The unique identifier for the resource."
    },
    "name": {
      "type": "string",
      "description": "Name of the resource."
    },
    "description": {
      "type": "string",
      "description": "An optional description of this resource."
    },
    "selfLink": {
      "type": "string",
      "description": "Server-defined URL for the resource."
    },
    "protocol": {
      "type": "string",
      "description": "The protocol this backend service uses to communicate with backends.",
      "enum": [
        "HTTP",
        "HTTPS",
        "HTTP2",
        "TCP",
        "SSL"
      ]
    },
    "enableCDN": {
      "type": "boolean",
      "description": "If true, enables Cloud CDN for the backend service."
    },
    "cdnPolicy": {
      "type": "object",
      "description": "Cloud CDN configuration for this backend service.",
      "properties": {
        "cacheMode": {
          "type": "string",
          "description": "Specifies the cache setting for all responses from this backend.",
          "enum": [
            "USE_ORIGIN_HEADERS",
            "FORCE_CACHE_ALL",
            "CACHE_ALL_STATIC"
          ]
        },
        "defaultTtl": {
          "type": "integer",
          "description": "Default TTL for cached content in seconds."
        },
        "maxTtl": {
          "type": "integer",
          "description": "Maximum allowed TTL for cached content in seconds."
        },
        "clientTtl": {
          "type": "integer",
          "description": "Maximum TTL allowed in the Cache-Control response directive."
        },
        "negativeCaching": {
          "type": "boolean",
          "description": "Negative caching allows caching of certain non-successful responses."
        },
        "signedUrlCacheMaxAgeSec": {
          "type": "string",
          "description": "Maximum number of seconds the response to a signed URL request will be cached."
        }
      }
    },
    "backends": {
      "type": "array",
      "description": "The list of backends that serve this backend service.",
      "items": {
        "type": "object",
        "properties": {
          "group": {
            "type": "string"
          },
          "balancingMode": {
            "type": "string"
          },
          "capacityScaler": {
            "type": "number"
          }
        }
      }
    },
    "healthChecks": {
      "type": "array",
      "description": "The list of URLs to the health check resources.",
      "items": {
        "type": "string"
      }
    },
    "creationTimestamp": {
      "type": "string",
      "format": "date-time",
      "description": "Creation timestamp in RFC3339 text format."
    }
  },
  "required": ["name"]
}