Promisify Azure storage service

azure-storage-promisify.js

// Use function that Async keyword appended
Bluebird.promisifyAll(blobService, {
  promisifier: (originalFunction) => function (...args) {
    return new Promise((resolve, reject) => {
      try {
        originalFunction.call(this, ...args, (error, result, response) => {
          error && reject(error);
          resolve({result, response});
        });
      } catch (e) {
        reject(e);
      }
    });
  }
});

Got it working - didn't know I had to put Async on the end of any functions that have been promisified e.g. tableService.retrieveEntityAsync().then(