REST API

AEM Screens提供遵循Siren規格的簡單REST風格API。 它允許導航內容結構,並向環境中的設備發送命令。

API可從​http://localhost:4502/api/screens.json存取。

API呼叫傳回的JSON會列出與目前資源相關的實體。 在列出的自連結後,這些實體中的每個實體都可作為REST資源再次訪問。

例如,若要存取我們展示旗艦位置的顯示畫面,您可以呼叫:

GET /api/screens/content/screens/we-retail/locations/demo/flagship.json HTTP/1.1
Host: http://localhost:4502

或使用捲曲:

curl -u admin:admin http://localhost:4502/api/screens/content/screens/we-retail/locations/demo/flagship.json

結果會是:

{
  "class": [
    "aem-io/screens/location"
  ],
  "links": [
    {
      "rel": [
        "self"
      ],
      "href": "http://localhost:4502/api/screens/content/screens/we-retail/locations/demo/flagship.json"
    },
    {
      "rel": [
        "parent"
      ],
      "href": "http://localhost:4502/api/screens/content/screens/we-retail/locations/demo.json"
    }
  ],
  "properties": {…},
  "entities": [
    {
      "class": [
        "aem-io/screens/display"
      ],
      "links": [
        {
          "rel": [
            "self"
          ],
          "href": "http://localhost:4502/api/screens/content/screens/we-retail/locations/demo/flagship/single.json"
        }
      ],
      "rel": [
        "child"
      ],
      "properties": {
        "title": "Single Screen Display",
        "height": 1440,
        "description": "Demo location of a single screen display.",
        "name": "single",
        "width": 2560,
        "idletimeout": 300,
        "layoutrows": 1,
        "layoutcols": 1
      }
    },
    …
  ]
}

然後,若要存取「單一螢幕顯示」,您可呼叫:

GET /api/screens/content/screens/we-retail/locations/demo/flagship/single.json HTTP/1.1
Host: http://localhost:4502

在資源上執行操作

API呼叫傳回的JSON可包含資源上可用動作的清單。

例如,顯示器列出了​broadcast-command​操作,該操作允許向分配給該顯示器的所有設備發送命令。

GET /api/screens/content/screens/we-retail/locations/demo/flagship/single.json HTTP/1.1
Host: http://localhost:4502

或使用捲曲:

curl -u admin:admin http://localhost:4502/api/screens/content/screens/we-retail/locations/demo/flagship/single.json

結果:

{
  "class": [
    "aem-io/screens/display"
  ],
  "links": […],
  "properties": {…},
  "entities": […],
  "actions": [
    {
      "title": "",
      "name": "broadcast-command",
      "method": "POST",
      "href": "/api/screens/content/screens/we-retail/locations/demo/flagship/single",
      "fields": [
        {
          "name": ":operation",
          "value": "broadcast-command",
          "type": "hidden"
        },
        {
          "name": "msg",
          "type": "text"
        }
      ]
    }
  ]
}

若要觸發此動作,您會呼叫:

POST /api/screens/content/screens/we-retail/locations/demo/flagship/single.json HTTP/1.1
Host: http://localhost:4502

:operation=broadcast-command&msg=reboot

或使用捲曲:

curl -u admin:admin -X POST -d ':operation=broadcast-command&msg=reboot' http://localhost:4502/api/screens/content/screens/we-retail/locations/demo/flagship/single.json

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