Created
August 7, 2014 07:57
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Simple WebSocker listener
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<!DOCTYPE html> | |
<html> | |
<head> | |
<style> | |
#logs_content { | |
border: 1px solid red; | |
width:98%; | |
height: 480px; | |
position:relative; | |
bottom:0px; | |
top:0px; | |
overflow:auto; | |
padding: 10px; | |
} | |
</style> | |
<script> | |
var connection = null; | |
var url = "ws://websocket-url/"; | |
var ch = "hello"; | |
function send(){ | |
var json = {}; | |
json.message = {} | |
json.message.date = new Date(); | |
connection.send(JSON.stringify(json)); | |
console.log("Send: " + JSON.stringify(json)); | |
} | |
function setChannel(){ | |
connection = null; | |
ch = document.getElementById('ch').value; | |
uri = url + ch | |
document.getElementById('uri').innerHTML = uri; | |
connection = new WebSocket(uri); | |
// When the connection is open, send some data to the server | |
connection.onopen = function() { | |
// connection.send('{"message":{"msg":"Ping"}}'); // Send the message 'Ping' to the server | |
console.log('Connected'); | |
}; | |
// Log errors | |
connection.onerror = function(error) { | |
console.log('WebSocket Error ' + JSON.stringify(error)); | |
}; | |
// Log messages from the server | |
connection.onmessage = function(e) { | |
console.log("Received : " + e.data); | |
var json = JSON.parse(e.data); | |
var ol = document.getElementById('logs'); | |
var li = document.createElement('li'); | |
li.appendChild(document.createTextNode(e.data)); | |
ol.appendChild(li); | |
var logs_content = document.getElementById('logs_content'); | |
logs_content.scrollTop = logs_content.scrollHeight; | |
} | |
} | |
</script> | |
<style> | |
body { | |
font-family: "Monaco", monospace; | |
} | |
</style> | |
</head> | |
<body> | |
<label for="ch">Channel</label> | |
<input type="text" id="ch" name='ch' placeholder="channel"/> | |
<button onclick="setChannel()">Set channel</button> | |
<button onClick="send()">Send</button> | |
<p id="uri">uri : ...</p> | |
<code> | |
<label for="logs_content">Output</label> | |
<div id='logs_content' name='logs_content'> | |
<ol id='logs'></ol> | |
</div> | |
</code> | |
</body> | |
</html> |
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