Calling a third party from Arc.js

http.commerce.catalog.storefront.shipping.requestRates.after.js

var serviceCall = require('../../util/needleRequest').makeSampleCall;
module.exports = function (context, callback) {
  var sampleData = "<value>" + context.request.url + "</value>";
  serviceCall(sampleData)
    .then(function (responseFromCall) {
      console.log(responseFromCall);
      callback();
    })
    .catch(function(err) {
      console.error(err);
      callback();
    });
  }

needleRequest.js

var needle = require('needle');
exports.makeSampleCall = function (bodyStr) {
  var promise = new Promise(function (resolve, reject) {
    try {
      needle.post('https://a24e6628.ngrok.io/mozu.events',
        {
          headers: {
            'Content-Type': 'text/xml'
          },
          body: bodyStr
        }, function (error, response) {
          if (!error && response.statusCode == 200) {
            console.log('Inside needle request');
            resolve(response);
          } else {
            reject(response.statusCode);
          }
        });
    } catch (err) {
      reject(console.error(err));    
    }
  });
  
  return promise;
};