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@@ -19,13 +19,41 @@
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<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap-theme.min.css">
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<!-- Latest compiled and minified JavaScript -->
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<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.min.js"></script>
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+ <!-- Primjs -->
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+ <link href="/static/prismjs.min.css" rel="stylesheet" />
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+
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<script type="text/javascript">
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$(document).ready(function() {
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StartRealtime({{.roomid}}, {{.timestamp}});
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});
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</script>
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+ <style>
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+ body { padding-top: 50px; }
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+ </style>
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</head>
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<body>
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+ <nav class="navbar navbar-fixed-top navbar-inverse">
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+ <div class="container">
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+ <div class="navbar-header">
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+ <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar">
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+ <span class="sr-only">Toggle navigation</span>
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+ <span class="icon-bar"></span>
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+ <span class="icon-bar"></span>
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+ <span class="icon-bar"></span>
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+ </button>
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+ <a class="navbar-brand" href="#">Server-Sent Events</a>
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+ </div>
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+ <div id="navbar" class="collapse navbar-collapse">
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+ <ul class="nav navbar-nav">
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+ <li class="active"><a href="#">Demo</a></li>
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+ <li><a href="http://www.w3.org/TR/2009/WD-eventsource-20091029/">W3 Standard</a></li>
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+ <li><a href="http://caniuse.com/#feat=eventsource">Browser Support</a></li>
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+ <li><a href="http://gin-gonic.github.io/gin/">Gin Framework</a></li>
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+ <li><a href="https://github.com/gin-gonic/gin/tree/develop/examples/realtime-advanced">Github</a></li>
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+ </ul>
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+ </div><!-- /.nav-collapse -->
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+ </div><!-- /.container -->
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+ </nav><!-- /.navbar -->
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<!-- Main jumbotron for a primary marketing message or call to action -->
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<div class="jumbotron">
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<div class="container">
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@@ -33,10 +61,8 @@
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<p><a href="http://www.html5rocks.com/en/tutorials/eventsource/basics/">Server-sent events (SSE)</a> is a technology where a browser receives automatic updates from a server via HTTP connection.</p>
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<p>The chat and the charts data is provided in realtime using the SSE implemention of <a href="https://github.com/gin-gonic/gin/blob/15b0c49da556d58a3d934b86e3aa552ff224026d/examples/realtime-chat/main.go#L23-L32">Gin Framework</a>.</p>
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<div class="row">
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- {{if not .nick}}
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<div class="col-md-8">
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- {{end}}
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- <div id="chat-scroll" style="overflow-y:scroll; overflow-x:scroll; height:200px">
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+ <div id="chat-scroll" style="overflow-y:scroll; overflow-x:scroll; height:270px">
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<table id="table-style" class="table">
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<thead>
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<tr>
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@@ -49,17 +75,22 @@
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</div>
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{{if .nick}}
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<form class="form-inline" id="chat-form" action="/room/{{.roomid}}?nick={{.nick}}" method="post">
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- <div class="form-group col-md-6">
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- <input name="message" id="chat-message" placeholder="a message" type="text" class="form-control" style="width:100%" />
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- </div>
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- <div class="form-group col-md-2">
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- <input type="submit" class="btn btn-primary" value="Send" />
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+ <div class="form-group">
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+ <label class="sr-only" for="chat-message">Message</label>
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+ <div class="input-group">
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+ <div class="input-group-addon">{{.nick}}</div>
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+ <input name="message" id="chat-message" placeholder="a message" type="text" class="form-control" />
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+ </div>
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</div>
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+ <input type="submit" class="btn btn-primary" value="Send" />
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</form>
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{{end}}
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- {{if not .nick}}
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</div>
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<div class="col-md-4">
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+ {{if .nick}}
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+ <h3>Inbound/Outbound</h3>
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+ <div id="messagesChart" class="epoch category20c"></div>
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+ {{else}}
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<form action="" method="get">
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<legend>Join the SSE real-time chat</legend>
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<div class="form-group">
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@@ -70,13 +101,14 @@
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<input type="submit" class="btn btn-success btn-login-submit" value="Join" />
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</div>
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</form>
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+ {{end}}
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</div>
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- {{end}}
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</div>
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</div>
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</div>
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<div class="container">
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<div class="row">
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+ <h2>Realtime server Go stats</h2>
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<div class="col-md-4">
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<h3>Number of Goroutines</h3>
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<p>
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@@ -96,9 +128,41 @@
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</p>
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</div>
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</div>
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+ <div class="row">
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+ <h2>Source code</h2>
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+ <div class="col-md-6">
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+ <script src="/static/prismjs.min.js"></script>
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+ <h3>Server-side (Go)</h3>
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+ <pre><code class="language-go">func streamRoom(c *gin.Context) {
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+ roomid := c.ParamValue("roomid")
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+ listener := openListener(roomid)
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+ statsTicker := time.NewTicker(1 * time.Second)
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+ defer closeListener(roomid, listener)
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+ defer statsTicker.Stop()
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+
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+ c.Stream(func(w io.Writer) bool {
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+ select {
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+ case msg := <-listener:
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+ c.SSEvent("message", msg)
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+ case <-statsTicker.C:
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+ c.SSEvent("stats", Stats())
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+ }
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+ return true
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+ })
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+}</code></pre>
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+ </div>
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+ <div class="col-md-6">
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+ <h3>Client-side (JS)</h3>
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+ <pre><code class="language-javascript">function StartSSE(roomid) {
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+ var source = new EventSource('/stream/'+roomid);
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+ source.addEventListener('message', newChatMessage, false);
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+ source.addEventListener('stats', stats, false);
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+}</code></pre>
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+ </div>
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+ </div>
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<hr>
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<footer>
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- <p>© Company 2014</p>
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+ <p>Created with <span class="glyphicon glyphicon-heart"></span> by <a href="https://github.com/manucorporat">Manu Martinez-Almeida</a></p>
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</footer>
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</div>
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</body>
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Manu Mtz-Almeida