A simple ajax (JSONP) request to the data API using jQuery.

var data = {
  resource_id: 'aac4e48c-cc32-4c2d-a24e-9d15bfc5efbf', // the resource id
  limit: 5 // get 5 results
};
$.ajax({
  url: 'https://api.nationalgrideso.com/api/3/action/datastore_search',
  data: data,
  dataType: 'jsonp',
  success: function(data) {
    alert('Total results found: ' + data.result.total)
  }
});

A simple ajax (JSONP) request to the data API using jQuery.

import urllib2
  url = 'https://api.nationalgrideso.com/api/3/action/datastore_search?resource_id=aac4e48c-cc32-4c2d-a24e-9d15bfc5efbf&limit=5'
  fileobj = urllib2.urlopen(url)
  print fileobj.read()