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

var data = {
  resource_id: 'd5c3b48a-a0a9-4d57-a02a-ac0af09a6298', // 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=d5c3b48a-a0a9-4d57-a02a-ac0af09a6298&limit=5'
  fileobj = urllib2.urlopen(url)
  print fileobj.read()