gistfile1.txt

 [
    { "id": 1,
      "name": "service1",
      "roles" : [
        { "id" : 1,
          "name": "API",
          "hosts": [
            { "id": 1,
              "name": "olapi01",
            },
            { "id": 2,
              "name": "olapi02",
            }
          ]
        },
        { "id" : 2,
          "name": "CMS",
          "hosts": [
            { "id": 3,
              "name": "olcms01",
            },
            { "id": 4,
              "name": "olcms02",
            }
          ]
        }
      ]
    },
  ]