code: function MicroserviceClient(settings) {
    var self = this;
    self.settings = settings;
    self.get = bind(self.get, self);
    self.post = bind(self.post, self);
    self.put = bind(self.put, self);
    self.delete = bind(self.delete, self);
    self.search = bind(self.search, self);
    self._request = bind(self._request, self);
  }
docs: Constructor of MicroserviceClientClient object.
  .
  settings.URL = process.env.SELF_URL;
  settings.secureKey = process.env.SECURE_KEY;
  settings.accessToken = if microservice-auth used, accessToken can be set here.