def getAllSessionId(self):
        """
        Show all opened session IDs.

        Return
           A list of opened session IDs.

           {4: {'startedOn': '2018-10-06 12:09:18.333-07:00',
              'state': 'Active',
              'subState': 'Ready',
              'userName': 'admin'},
            5: {'startedOn': '2018-10-06 18:49:05.691-07:00',
              'state': 'Active',
              'subState': 'Ready',
              'userName': 'admin'}
           }
        """
        response = self.get(self.httpHeader+'/api/v1/sessions', silentMode=True)
        sessionId = {}
        for eachSessionId in response.json():
            sessionId.update({eachSessionId['id']: {'userName': eachSessionId['userName'],
                                                    'createdOn': eachSessionId['createdOn'].replace('T', ' '),
                                                    'state': eachSessionId['state'],
                                                    'subState': eachSessionId['subState']
                                                }
                          })

            print('\nSessionId: {}'.format(eachSessionId['id']))
            print('   UserName: {}'.format(eachSessionId['userName']))
            print('   StartedOn: {}'.format(eachSessionId['createdOn'].replace('T', ' ')))
            print('   State: {}'.format(eachSessionId['state']))
            print('   SubState: {}'.format(eachSessionId['subState']))

        print()
        return sessionId