Information about a capsule can obtained using the appear2mee("capsuleMessageInfo", name, callback) SDK method. The callback function with receive an object and a the capsule name. If the capsule name is null, then a capsule with the capsuleMessageInfo arg name does not exist. The data object contains a link field which has a string with the message action link address. Not all capsules have a "call to action" link, if not link has be set on the 2mee exchange then the link value will be null.