in reply to Re: Providing feedback to Web GUI (Mojolicious)
in thread Providing feedback to Web GUI (Mojolicious)

Not sure what mojo is or how useful this is to what you're working on, but SSE might be something to look into. 
#!/usr/bin/perl --
print "Content-Type: text/event-stream\n\n";
while(true){
  print "event: server-time\n";
  $num++;
  print "data: $num\n\n";
}

[download]
generates an SSE stream. 
<!DOCTYPE HTML>
<html>
<head>
<title>Server-Side Event</title>
<script type="text/javascript">
function invokeSSE(){

var source = new EventSource('http://localhost/sse.pl');
source.addEventListener('server-time', function(e) {
document.getElementById('ticker').innerHTML = e.data + '<br>';
}, false);


source.addEventListener('open', function(e) {
//Connection Open
}, false);
source.addEventListener('error', function(e) {
if (e.readyState == EventSource.CLOSED) {
alert("Connection closed");
}
}, false);
}
</script>
</head>
<body onload="invokeSSE()">
<div id="ticker" name="ticker">
  [TIME]
</div>
</body>
</html>

[download]
is a page to listen to SSE streams.

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Re^3: Providing feedback to Web GUI (Mojolicious)
by Corion (Patriarch) on Nov 20, 2013 at 17:49 UTC
[reply]

In Section Seekers of Perl Wisdom