<data Commands> Type: Corrade progressive command Command[wiki]: ping Parameters[wiki]: group, password Description[wiki]: The ping command replies with pong to the callback. Permissions[wiki]: None. Last Changes[wiki]: None. </data>

The ping command replies with pong.

llInstantMessage(CORRADE, 
    wasKeyValueEncode(
        [
            "command", "ping",
            "group", wasURLEscape(GROUP),
            "password", wasURLEscape(PASSWORD),
            "callback", wasURLEscape(URL)
        ]
    )
);

• The ping command is one way to check the round-trip between your script, Corrade and the receiver of the callback.