{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://api-evangelist.github.io/restful-services/schemas/rest-resource",
  "title": "REST Resource",
  "description": "Abstract schema for a RESTful API resource, defining the common structural pattern of a REST resource with identifier, metadata, and links.",
  "type": "object",
  "properties": {
    "id": {
      "type": ["string", "integer"],
      "description": "Unique resource identifier"
    },
    "type": {
      "type": "string",
      "description": "Resource type name (e.g., user, order, product)"
    },
    "href": {
      "type": "string",
      "format": "uri",
      "description": "Self-link: the canonical URL for this resource"
    },
    "createdAt": {
      "type": "string",
      "format": "date-time",
      "description": "ISO 8601 creation timestamp"
    },
    "updatedAt": {
      "type": "string",
      "format": "date-time",
      "description": "ISO 8601 last modification timestamp"
    },
    "_links": {
      "type": "object",
      "description": "Hypermedia links (HAL-style) to related resources and available actions",
      "additionalProperties": {
        "type": "object",
        "properties": {
          "href": { "type": "string", "format": "uri" },
          "method": { "type": "string", "enum": ["GET", "POST", "PUT", "DELETE", "PATCH"] },
          "title": { "type": "string" }
        }
      }
    }
  },
  "required": ["id"]
}