code: function Boxcar(providerKey, providerSecret) {
      if (!providerKey) {
              throw new Error('Must supply a valid API key');
          return;
      }
  
      this.providerKey = providerKey;
      this.providerSecret = providerSecret;
  
      this.provider_url = '/devices/providers/' + this.providerKey + '/notifications';
      this.options = {
          hostname: 'boxcar.io',
          port: 443,
          method: 'POST'
      };
  }
docs: constructor