gem 'jsom-pagination'

paginator = JSOM::Pagination::Paginator.new
collection = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
paginated = paginator.call(collection, params: { number: 2, size: 3 }, base_url: 'https://example.com')

paginator = JSOM::Pagination::Paginator.new
collection = Article.published
paginated = paginator.call(collection, params: { number: 2, size: 3 }, base_url: 'https://example.com')

paginated.meta
# => #<JSOM::Pagination::MetaData total=10 pages=4>

paginated.meta.to_h
# => {:total=>10, :pages=>4}

paginated.links
# => #<JSOM::Pagination::Links:0x00007fdf5d0dd2b8 @url="https://example.com", @page=#<JSOM::Pagination::Page number=2 size=3>, @total_pages=4, @first="https://example.com?page[size]=3", @prev="https://example.com?page[size]=3", @self="https://example.com?page[number]=2&page[size]=3", @next="https://example.com?page[number]=3&page[size]=3", @last="https://example.com?page[number]=4&page[size]=3">

paginated.links.to_h
# => {
#   :first=>"https://example.com?page[size]=3",
#   :prev=>"https://example.com?page[size]=3",
#   :self=>"https://example.com?page[number]=2&page[size]=3",
#   :next=>"https://example.com?page[number]=3&page[size]=3",
#   :last=>"https://example.com?page[number]=4&page[size]=3"
# }

options = { meta: paginated.meta.to_h, links: paginated.links.to_h }
render json: serializer.new(paginated.items, options)

# app/controllers/concerns/paginable.rb
module Paginable
    extend ActiveSupport::Concern
    
    def paginator
      JSOM::Pagination::Paginator.new
    end
    
    def pagination_params
      params.permit![:page] # defaults to 20 pages 
    end
    
    def paginate(collection)
      paginator.call(collection, params: pagination_params, base_url: request.url)
    end
  
    def render_collection(paginated)
      options = {
        # meta: paginated.meta.to_h, # Will get total pages, total count, etc.
        links: paginated.links.to_h
      }
      paginated_result = serializer.new(paginated.items, options)
  
      render json: paginated_result
    end
end

# app/controllers/articles_controllers.rb
class ArtclesController < ApplicationController
    include Paginable

    def index
        articles = articles = Article.order('created_at DESC')
        paginated = paginate(articles)
    
        articles.present? ? render_collection(paginated) : :not_found
    end

    private

    def serializer
        ArticleSerializer
    end
end