The following example shows a response body when retrieving case comments.

{
					"type": "comments",
					"levels": 0,
					"links": [{
						"rel": "back",
						"href": "http://example.com/bpm/api/3.0/cases/5e4fa87f-d698-4c06-912c-79d162f4e03c"
					},
					{
						"rel": "self",
						"href": "http://example.com/bpm/api/3.0/cases/5e4fa87f-d698-4c06-912c-79d162f4e03c/comments"
					}],
					"comment": {
						"comment": [{
							"commentStr": "Testing Comments Post REST API",
							"updatedBy": "jstein",
							"updatedDate": "2015-06-08 14:43:08"
						},
						{
							"commentStr": "Creating a case link",
							"updatedBy": "wfaulk",
							"updatedDate": "2015-06-05 17:42:51"
						}]
					}
				}

For more information about cURL, see Use cURL