How to get the number of viewers live stream?

that's how I did it

var nc_admin = new NetConnection;


function timer1(){
    nc_admin.call("getLiveStreams", new onGetLiveStreams(), "live");
}
 
setInterval(timer1, 5000); 

function onGetLiveStreams() {
    this.onResult = function(ans) {
     for (i = 0; i < ans.data.length; i++){ 
         nc_admin.call("getLiveStreamStats", new onGetLiveStreamStats(), "live" , ans.data);
     }
    }

}

function onGetLiveStreamStats(){
    this.onResult = function(info) {
     if(info.data.publisher && info.data.subscribers) {
         var so = SharedObject.get(info.data.publisher.name, false); 
         so.setProperty('viewers', info.data.subscribers.length);
     } 
    }
}

application.onAppStart = function(){

    trace("Starting...");    
    nc_admin.connect("rtmp://localhost:1111/admin", "fmsroot", "ljvedjls"); 
    
}

Can I call getLiveStreamStats() on server side? Without NetConnection to localhost!

If you have access to you FMS Admin Console you can simply look how much clients are connected to your application(s).

If you need the current number of viewers on your client side you can store the connections into a shared object within your application.