const request = require('request');

const options = {
  method: 'GET',
  url: 'https://api.betterez.com/sales/gift-certificates/:GCNumber',
  qs: {cartId: ':cartId'},
  headers: {'x-api-key': '{{x-api-key}}'}
};

request(options, function (error, response, body) {
	if (error) throw new Error(error);

	console.log(body);
});