# Category: Helpers

The @pagy instance provides all the helpers to use in your code.

data_hash plucks a hash of key-value pairs from the pagy object. It is useful for exporting pagination data to JavaScript frameworks like Vue.js, React.js,

headers_hash generates the standard link header defined in the RFC-8288, and adds 4 customizable headers useful for pagination, that you can merge into the

urls_hash returns the :first, :previous, :next, :last non-nil URLs hash.

page_url returns the URL of any page of any instance. If the page is not available it returns nil. It is useful to build minimalistic UIs that don't use