{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://api-evangelist.github.io/worldbank/json-schema/pagination.json",
  "title": "PaginationData",
  "description": "Pagination metadata returned as the first element in World Bank API response arrays.",
  "type": "object",
  "properties": {
    "page": {
      "type": "integer",
      "description": "Current page number (1-indexed)",
      "minimum": 1,
      "example": 1
    },
    "pages": {
      "type": "integer",
      "description": "Total number of pages",
      "minimum": 1,
      "example": 10
    },
    "per_page": {
      "type": "integer",
      "description": "Number of records returned per page",
      "minimum": 1,
      "maximum": 1000,
      "example": 50
    },
    "total": {
      "type": "integer",
      "description": "Total number of records matching the query",
      "minimum": 0,
      "example": 500
    },
    "sourceid": {
      "type": ["string", "null"],
      "description": "Source database identifier",
      "example": "2"
    },
    "sourcename": {
      "type": ["string", "null"],
      "description": "Source database name",
      "example": "World Development Indicators"
    },
    "lastupdated": {
      "type": ["string", "null"],
      "description": "Date the data source was last updated (YYYY-MM-DD)",
      "format": "date",
      "example": "2024-06-28"
    }
  },
  "required": ["page", "pages", "per_page", "total"]
}