The following example uses a ClientCountSnapshot to retrieve the number of users ("clients") on tryunion.com (Union's public testing server):
This example is also available for Reactor (Adobe Flash framework).
Union "snapshots" provide a traditional request/response mechanism for retrieving data on demand from Union Server. Snapshot data is not automatically synchronized with Union Server; instead snapshots are updated only when Orbiter's updateSnapshot() method is called (i.e., via "client pull" rather than "server push").
Here is the code for the preceding example. Click the "+" button to edit it live on JSFiddle.