code: def _request(self, service, **parameters):
          
          urlformat = "{baseurl}/{service}?{parameters}&format=json"
          url = urlformat.format(
              baseurl=API_BASE_URL,
              service=service,
              parameters="&".join([
                  "{}={}".format(key, value) for key, value in parameters.items()
                  ]))
          if datetime.now() > self._token_expire_date:
              self.update_token()
          headers = {'Authorization': 'Bearer ' + self._token}
          res = requests.get(url, headers=headers)
          if res.status_code == 200:
              return json.loads(res.content.decode('UTF-8'))
          else:
              raise Error('Error: ' + str(res.status_code) +
                              str(res.content))
docs: request builder