REST call:

{'applications': [{'charm-url': 'cs:xenial/ceph-mon-1', 'num-units': 3, 'constraints': {}, 'config-yaml': 'ceph-mon:\n  fsid: 5a791d94-980b-11e4-b6f6-3c970e8b1cf7\n  monitor-secret: AQAi5a9UeJXUExAA+By9u+GPhl8/XiUQ4nwI3A==\n', 'application': 'ceph-mon'}]}

REsponse:

 3.0s receive: 
      res={'RequestId': 2, 'Response': {'facades': [{'name': 'Action', 'versions': [2]}, {'name': 'Agent', 'versions': [2]}, {'name': 'AgentTools', 'versions': [1]}, {'name': 'AllModelWatcher', 'versions': [2]}, {'name': 'AllWatcher', 'versions': [1]}, {'name': 'Annotations', 'versions': [2]}, {'name': 'Application', 'versions': [1]}, {'name': 'ApplicationScaler', 'versions': [1]}, {'name': 'Backups', 'versions': [1]}, {'name': 'Block', 'versions': [2]}, {'name': 'CharmRevisionUpdater', 'versions': [2]}, {'name': 'Charms', 'versions': [2]}, {'name': 'Cleaner', 'versions': [2]}, {'name': 'Client', 'versions': [1]}, {'name': 'Cloud', 'versions': [1]}, {'name': 'Controller', 'versions': [3]}, {'name': 'Deployer', 'versions': [1]}, {'name': 'DiscoverSpaces', 'versions': [2]}, {'name': 'DiskManager', 'versions': [2]}, {'name': 'EntityWatcher', 'versions': [2]}, ...], 'model-tag': 'model-17a44ee4-1686-49c8-88b5-d9c5d55563e3', 'server-tag': 'model-497dfbf5-9e13-478a-8101-0791f4ee37d7', 'server-version': '2.0-beta10.1', 'servers': [[{'port': 17070, 'scope': 'local-cloud', 'type': 'ipv4', 'value': '10.208.61.47'}, {'port': 17070, 'scope': 'local-machine', 'type': 'ipv4', 'value': '127.0.0.1'}, {'port': 17070, 'scope': 'local-machine', 'type': 'ipv6', 'value': '::1'}]], 'user-info': {'display-name': '', 'identity': 'user-admin@local', 'last-connection': '2016-06-27T20:29:22Z', 'read-only': False}}}
 3.1s receive: 
      res={'RequestId': 3, 'Response': {'results': [{'error': {'code': 'not found', 'message': 'charm "cs:xenial/ceph-mon-1" not found'}}]}}