HasNextPage

HasNextPage is a boolean indicator used in paginated data to signal whether additional pages of results exist beyond the current page. It is commonly exposed by APIs and data access libraries as part of a pagination contract, helping clients determine whether they should attempt to fetch more data.

In practice, hasNextPage appears in different pagination patterns. In cursor-based pagination, often associated with GraphQL Relay’s connection model, the pageInfo object includes hasNextPage and hasPreviousPage to describe the availability of adjacent pages. In offset-based or traditional REST-style pagination, a similar field may be returned as part of a meta object or response envelope, or inferred from the presence of further items when a limit is applied.

Implementation approaches vary. A common method is to query with a limit of pageSize plus one item; if the extra item exists, hasNextPage is true; if not, it is false. In systems that track a total item count, hasNextPage can be derived from whether pageIndex multiplied by pageSize is less than totalResults. Each approach has trade-offs related to performance, consistency, and latency.

Semantics and usage are straightforward: a true value indicates that another page can be retrieved, while false suggests the current page is the last. Designers should document how hasNextPage is determined and consider its interaction with hasPreviousPage, endCursor, or nextPage tokens to ensure predictable client behavior.