System Messages

Quit TV Application

The Quit TV predefined message format is:

{
    "SystemCommand": {
        "Type": "QuitTVApp",
        "AppID": "SampleWidget"
    }
}

This message can be generated in this situations:

• Client pushes the predefined message to the TV application using the URI /ws/app/{appID}/queue.

TV application should quit execution when receives this message.

Application Exit Notification

The TV application information is usually client driven. When the TV application quits, the system generates a broadcast message to notify all the connected clients that the application running status is changed to “TERMINATED”. For example:

{
    "widgetInfo": {
        "ID": "Canvas_NewOCI",
        "Version": "0.930",
        "Status": "TERMINATED",
        "widgetname": "sampleWidget"

    }
}

On receiving the above message, the client should stops communication with the TV and the long polling process.

Disconnect Client

The Disconnect client predefined message is:

{
    "SystemCommand": {
        "Type": "DisconnectClient",
        "AppID": "SampleWidget"
    }
}

On receiving the above message, the client should stops communication with the TV and the long polling process.