parse.com - Lazy Loading using JQuery dataTables with Parse database -

i using jquery datatables display data parse.com. have 5000 rows in database , tables takes long time load. i've attempted solve problem using lazy loading via jquery datatables pipeline. looked @ example: http://www.datatables.net/examples/server_side/pipeline.html not working me. using rest api parse url. below code. please help. thank you!

// pipelining function datatables. used `ajax` option of datatables // $.fn.datatable.pipeline = function ( opts ) {     // configuration options     var conf = $.extend( {         pages: 5,     // number of pages cache         url: '',      // script url         data: null,   // function or object parameters send server                       // matching how `ajax.data` works in datatables         method: 'get' // ajax http method     }, opts );      // private variables storing cache     var cachelower = -1;     var cacheupper = null;     var cachelastrequest = null;     var cachelastjson = null;      return function ( request, drawcallback, settings ) {         var ajax          = false;         var requeststart  = request.start;         var drawstart     = request.start;         var requestlength = request.length;         var requestend    = requeststart + requestlength;          if ( settings.clearcache ) {             // api requested cache cleared             ajax = true;             settings.clearcache = false;         }         else if ( cachelower < 0 || requeststart < cachelower || requestend > cacheupper ) {             // outside cached data - need make request             ajax = true;         }         else if ( json.stringify( request.order )   !== json.stringify( cachelastrequest.order ) ||                   json.stringify( request.columns ) !== json.stringify( cachelastrequest.columns ) ||                   json.stringify( request.search )  !== json.stringify( cachelastrequest.search )         ) {             // properties changed (ordering, columns, searching)             ajax = true;         }          // store request checking next time around         cachelastrequest = $.extend( true, {}, request );          if ( ajax ) {             // need data server             if ( requeststart < cachelower ) {                 requeststart = requeststart - (requestlength*(conf.pages-1));                  if ( requeststart < 0 ) {                     requeststart = 0;                 }             }              cachelower = requeststart;             cacheupper = requeststart + (requestlength * conf.pages);              request.start = requeststart;             request.length = requestlength*conf.pages;              // provide same `data` options datatables.             if ( $.isfunction ( conf.data ) ) {                 // function executed data object arg                 // manipulation. if object returned, used                 // data object submit                 var d = conf.data( request );                 if ( d ) {                     $.extend( request, d );                 }             }             else if ( $.isplainobject( conf.data ) ) {                 // object, data given extends default                 $.extend( request, conf.data );             }              settings.jqxhr = $.ajax( {                 "type":     conf.method,                 "url":      conf.url,                 "data":     request,                 "datatype": "json",                 "cache":    false,                 "success":  function ( json ) {                     cachelastjson = $.extend(true, {}, json);                      if ( cachelower != drawstart ) {                         json.data.splice( 0, drawstart-cachelower );                     }                     json.data.splice( requestlength, json.data.length );                      drawcallback( json );                 }             } );         }         else {             json = $.extend( true, {}, cachelastjson );             json.draw = request.draw; // update echo each response             json.data.splice( 0, requeststart-cachelower );             json.data.splice( requestlength, json.data.length );              drawcallback(json);         }     } };  // register api method empty pipelined data, forcing ajax // fetch on next draw (i.e. `table.clearpipeline().draw()`) $.fn.datatable.api.register( 'clearpipeline()', function () {     return this.iterator( 'table', function ( settings ) {         settings.clearcache = true;     } ); } );   $(document).ready(function() {   $('#media_table').datatable( {                 "processing": true,                 "serverside": true,                 "ajax": $.fn.datatable.pipeline( {                     url: 'https://api.parse.com/1/classes/gamescore',                     pages: 5 // number of pages cache                 })            })    })