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Add JS websocket example

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wunter8 2023-11-15 09:28:35 -07:00 committed by GitHub
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>ntfy.sh: WebSocket Example</title>
<meta name="robots" content="noindex, nofollow" />
<style>
body { font-size: 1.2em; line-height: 130%; }
#events { font-family: monospace; }
</style>
</head>
<body>
<h1>ntfy.sh: WebSocket Example</h1>
<p>
This is an example showing how to use <a href="https://ntfy.sh">ntfy.sh</a> with
<a href="https://developer.mozilla.org/en-US/docs/Web/API/WebSocket">WebSocket</a>.<br/>
This example doesn't need a server. You can just save the HTML page and run it from anywhere.
</p>
<button id="publishButton">Send test notification</button>
<p><b>Log:</b></p>
<div id="events"></div>
<script type="text/javascript">
const publishURL = `https://ntfy.sh/example`;
const subscribeURL = `wss://ntfy.sh/example/ws`;
const events = document.getElementById('events');
const websocket = new WebSocket(subscribeURL);
// Publish button
document.getElementById("publishButton").onclick = () => {
fetch(publishURL, {
method: 'POST', // works with PUT as well, though that sends an OPTIONS request too!
body: `It is ${new Date().toString()}. This is a test.`
})
};
// Incoming events
websocket.onopen = () => {
let event = document.createElement('div');
event.innerHTML = `WebSocket connected to ${subscribeURL}`;
events.appendChild(event);
};
websocket.onerror = (e) => {
let event = document.createElement('div');
event.innerHTML = `WebSocket error: Failed to connect to ${subscribeURL}`;
events.appendChild(event);
};
websocket.onmessage = (e) => {
let event = document.createElement('div');
event.innerHTML = e.data;
events.appendChild(event);
};
</script>
</body>
</html>