code: function (event, context, responseStatus, physicalResourceId, responseData, reason) {
    return new Promise((resolve, reject) => {
      const https = require('https');
      const { URL } = require('url');
  
      var responseBody = JSON.stringify({
        Status: responseStatus,
        Reason: reason,
        PhysicalResourceId: physicalResourceId || context.logStreamName,
        StackId: event.StackId,
        RequestId: event.RequestId,
        LogicalResourceId: event.LogicalResourceId,
        Data: responseData
      });
  
      const parsedUrl = new URL(event.ResponseURL || defaultResponseURL);
      const options = {
        hostname: parsedUrl.hostname,
        port: 443,
        path: parsedUrl.pathname + parsedUrl.search,
        method: 'PUT',
        headers: {
          'Content-Type': '',
          'Content-Length': responseBody.length
        }
      };
  
      https.request(options)
        .on('error', reject)
        .on('response', res => {
          res.resume();
          if (res.statusCode >= 400) {
            reject(new Error(`Server returned error ${res.statusCode}: ${res.statusMessage}`));
          } else {
            resolve();
          }
        })
        .end(responseBody, 'utf8');
    });
  }
docs: Upload a CloudFormation response for a Custom Resource
  
  @param {object} event the Lambda event payload received by the handler function
  @param {object} context the Lambda context received by the handler function
  @param {string} responseStatus the response status, either 'SUCCESS' or 'FAILED'
  @param {string} physicalResourceId CloudFormation physical resource ID
  @param {object} [responseData] arbitrary response data object
  @param {string} [reason] reason for failure, if any, to convey to the user
  @returns {Promise} Promise that is resolved on success, or rejected on connection error or HTTP error response