user.partial.js

  /**
   * Send the specified user their email verification token
   * @param {Object} options
   * @returns {Promise<>}
   */
  self.sendEmailVerificationToken = function(options) {
    return new Promise(function(resolve, reject) {
      self.find(options).then(function(user) {
        return mailer('email.user.email-verification', {
          'to': user.email,
          'subject': 'Email verification',
          'context': {
            'user': user,
            'token': user.emailToken
          }
        }).then(function() {
          self.emit('sendEmailVerificationToken', {'user': user});
          resolve();
        });
      }).catch(reject);
    });
  }