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August 29, 2015 14:18
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Websocket vs EventSource. Need open in many tabs of browsers to see "Waiting for available socket" for EventSource.
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| #!/usr/bin/perl | |
| use strict; | |
| use warnings; | |
| use v5.10; | |
| use Mojolicious::Lite; | |
| use Mojo::IOLoop; | |
| get '/' => sub { | |
| my $c = shift; | |
| $c->render(template => 'index'); | |
| }; | |
| get '/es' => sub { | |
| my $c = shift; | |
| $c->inactivity_timeout(60 * 10); | |
| $c->res->headers->content_type('text/event-stream; charset="UTF-8"'); | |
| Mojo::IOLoop->recurring(1 => sub { | |
| state $i = 0; | |
| $c->write("event: es\ndata: $i\n\n"); | |
| ++$i; | |
| }); | |
| } => 'es'; | |
| websocket '/ws' => sub { | |
| my $c = shift; | |
| $c->inactivity_timeout(60 * 10); | |
| Mojo::IOLoop->recurring(1 => sub { | |
| state $i = 0; | |
| $c->send("$i"); | |
| ++$i; | |
| }); | |
| $c->on(message => sub { | |
| my ($c, $msg) = @_; | |
| $c->send("echo: $msg"); | |
| }); | |
| $c->on(finish => sub { | |
| my ($c, $code, $reason) = @_; | |
| }); | |
| } => 'ws'; | |
| app->start; | |
| __DATA__ | |
| @@ index.html.ep | |
| <head> | |
| <script src="http://code.jquery.com/jquery-2.1.3.min.js"></script> | |
| </head> | |
| <body> | |
| <script> | |
| $(document).ready(function () { | |
| function event_source () { | |
| var evtSource = new EventSource("<%= url_for 'es' %>"); | |
| evtSource.addEventListener("es", function(e) { | |
| document.body.innerHTML += e.data + '<br/>'; | |
| }); | |
| } | |
| function websocket () { | |
| var ws = new WebSocket('<%= url_for('ws')->to_abs %>'); | |
| ws.onmessage = function(event) { | |
| document.body.innerHTML += event.data + '<br/>'; | |
| }; | |
| } | |
| event_source(); | |
| //websocket(); | |
| }); | |
| </script> | |
| </body> |
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