making_a_request.js

function fetchDataset(url, cb, crop) {
         var http = new XMLHttpRequest();
         http.open("GET", url);
         http.send();

         http.onload = function () {
           var result = http.responseText && JSON.parse(http.responseText);
           cb && result && cb(result, crop);
         };

       };
       function showData(res){
         console.log(res);
         var data = res.result[0].data.TELLUSCHIN;
         var data = res && res.result && res.result[0] && res.result[0].data && res.result[0].data.TELLUSCHIN || []
         var data = _get(res, 'result[0].data.TELLUSCHIN', [])
         var mySeries = {
           name: 'drewSeries',
           data: data
         }
         myChart.addSeries(mySeries)
         myChart.redraw()
       };
       fetchDataset('https://api.kernel.telluslabs.com/api/v1/metrics/?country_iso=USA&geo_level=level_1&data_points=3&metric_code=TELLUSCHIN,TLCHIN5YMN,TLCHIN5YLO,TLCHIN5YHI&api_key=80bcc60a8affd75375870d340463051e&geo_id=00&crop=corn', showData)