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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>ntfy.sh: EventSource 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: EventSource 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/EventSource">EventSource</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 = `https://ntfy.sh/example/sse`;
const events = document.getElementById('events');
const eventSource = new EventSource(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
eventSource.onopen = () => {
let event = document.createElement('div');
event.innerHTML = `EventSource connected to ${subscribeURL}`;
events.appendChild(event);
};
eventSource.onerror = (e) => {
let event = document.createElement('div');
event.innerHTML = `EventSource error: Failed to connect to ${subscribeURL}`;
events.appendChild(event);
};
eventSource.onmessage = (e) => {
let event = document.createElement('div');
event.innerHTML = e.data;
events.appendChild(event);
};
</script>
</body>
</html>
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