getAnimals.js

function getAnimals() { 
  var dataSource = this;

  var ajax = $.ajax({ 
    type: 'GET', 
    url: '/my/remote/endpoint/', 
    data: { 
      limit: dataSource.pager.limit(), 
      startIndex: dataSource.pager.limit() * ( dataSource.pager.page() – 1 ) 
    },
    dataType: 'json' 
  });
  
  return Promise.resolve(ajax).then(function(data) {
    dataSource( data.rows ); 
    dataSource.pager.totalCount( data.count ); 
  });
};