203 lines
9.5 KiB
HTML
203 lines
9.5 KiB
HTML
<!DOCTYPE html>
|
|
<html lang="en">
|
|
<head>
|
|
<meta charset="UTF-8">
|
|
|
|
<title>ntfy.sh | simple HTTP-based pub-sub</title>
|
|
<link rel="stylesheet" href="static/css/app.css" type="text/css">
|
|
|
|
<!-- Mobile view -->
|
|
<meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no">
|
|
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
|
|
<meta name="HandheldFriendly" content="true">
|
|
|
|
<!-- Mobile browsers, background color -->
|
|
<meta name="theme-color" content="#39005a">
|
|
<meta name="msapplication-navbutton-color" content="#39005a">
|
|
<meta name="apple-mobile-web-app-status-bar-style" content="#39005a">
|
|
|
|
<!-- Favicon, see favicon.io -->
|
|
<link rel="icon" type="image/png" href="static/img/favicon.png">
|
|
|
|
<!-- Previews in Google, Slack, WhatsApp, etc. -->
|
|
<meta property="og:type" content="website" />
|
|
<meta property="og:locale" content="en_US" />
|
|
<meta property="og:site_name" content="ntfy.sh" />
|
|
<meta property="og:title" content="ntfy.sh | simple HTTP-based pub-sub" />
|
|
<meta property="og:description" content="ntfy is a simple HTTP-based pub-sub notification service. It allows you to send desktop notifications via scripts from any computer, entirely without signup or cost. Made with ❤ by Philipp C. Heckel, Apache License 2.0, source at https://heckel.io/ntfy." />
|
|
<meta property="og:image" content="/static/img/ntfy.png" />
|
|
<meta property="og:url" content="https://ntfy.sh" />
|
|
</head>
|
|
<body>
|
|
<div id="main">
|
|
<h1><img src="static/img/ntfy.png" alt="ntfy"/><br/>ntfy.sh - simple HTTP-based pub-sub</h1>
|
|
<p>
|
|
<b>ntfy</b> (pronounce: <i>notify</i>) is a simple HTTP-based <a href="https://en.wikipedia.org/wiki/Publish%E2%80%93subscribe_pattern">pub-sub</a> notification service.
|
|
It allows you to send notifications <a href="https://play.google.com/store/apps/details?id=io.heckel.ntfy">to your phone</a> or desktop via scripts from any computer,
|
|
entirely <b>without signup or cost</b>. It's also <a href="https://github.com/binwiederhier/ntfy">open source</a> if you want to run your own.
|
|
</p>
|
|
|
|
<h2>Publishing messages</h2>
|
|
<p>
|
|
Publishing messages can be done via PUT or POST using. Topics are created on the fly by subscribing or publishing to them.
|
|
Because there is no sign-up, <b>the topic is essentially a password</b>, so pick something that's not easily guessable.
|
|
</p>
|
|
<p class="smallMarginBottom">
|
|
Here's an example showing how to publish a message using <tt>curl</tt>:
|
|
</p>
|
|
<code>
|
|
curl -d "long process is done" ntfy.sh/mytopic
|
|
</code>
|
|
<p class="smallMarginBottom">
|
|
Here's an example in JS with <tt>fetch()</tt> (see <a href="https://github.com/binwiederhier/ntfy/tree/main/examples">full example</a>):
|
|
</p>
|
|
<code>
|
|
fetch('https://ntfy.sh/mytopic', {<br/>
|
|
method: 'POST', // PUT works too<br/>
|
|
body: 'Hello from the other side.'<br/>
|
|
})
|
|
</code>
|
|
|
|
<h2>Subscribe to a topic</h2>
|
|
<p>
|
|
You can create and subscribe to a topic either in this web UI, or in your own app by subscribing to an
|
|
<a href="https://developer.mozilla.org/en-US/docs/Web/API/EventSource">EventSource</a>, a JSON feed, or raw feed.
|
|
</p>
|
|
|
|
<div id="subscribeBox">
|
|
<h3>Subscribe in this Web UI</h3>
|
|
<p id="error"></p>
|
|
<p>
|
|
Subscribe to topics here and receive messages as <b>desktop notification</b>. Topics are not password-protected,
|
|
so choose a name that's not easy to guess. Once subscribed, you can publish messages via PUT/POST.
|
|
</p>
|
|
<form id="subscribeForm">
|
|
<p>
|
|
<b>Topic:</b><br/>
|
|
<input type="text" id="topicField" autocomplete="off" placeholder="Topic name, e.g. phil_alerts" pattern="[-_A-Za-z]{1,64}" />
|
|
<button id="subscribeButton">Subscribe</button>
|
|
</p>
|
|
<p id="topicsHeader"><b>Subscribed topics:</b></p>
|
|
<ul id="topicsList"></ul>
|
|
</form>
|
|
<audio id="notifySound" src="static/sound/mixkit-message-pop-alert-2354.mp3"></audio>
|
|
</div>
|
|
|
|
<h3>Subscribe via Android App</h3>
|
|
<p>
|
|
You can use the <a href="https://play.google.com/store/apps/details?id=io.heckel.ntfy">Ntfy Android App</a>
|
|
to receive notifications directly on your phone. Just like the server, this app is also <a href="https://github.com/binwiederhier/ntfy-android">open source</a>.
|
|
</p>
|
|
|
|
<h3>Subscribe via your app, or via the CLI</h3>
|
|
<p class="smallMarginBottom">
|
|
Using <a href="https://developer.mozilla.org/en-US/docs/Web/API/EventSource">EventSource</a> in JS, you can consume
|
|
notifications like this (see <a href="https://github.com/binwiederhier/ntfy/tree/main/examples">full example</a>):
|
|
</p>
|
|
<code>
|
|
const eventSource = new EventSource('https://ntfy.sh/mytopic/sse');<br/>
|
|
eventSource.onmessage = (e) => {<br/>
|
|
// Do something with e.data<br/>
|
|
};
|
|
</code>
|
|
<p class="smallMarginBottom">
|
|
You can also use the same <tt>/sse</tt> endpoint via <tt>curl</tt> or any other HTTP library:
|
|
</p>
|
|
<code>
|
|
$ curl -s ntfy.sh/mytopic/sse<br/>
|
|
event: open<br/>
|
|
data: {"id":"weSj9RtNkj","time":1635528898,"event":"open","topic":"mytopic"}<br/><br/>
|
|
|
|
data: {"id":"p0M5y6gcCY","time":1635528909,"event":"message","topic":"mytopic","message":"Hi!"}<br/><br/>
|
|
|
|
event: keepalive<br/>
|
|
data: {"id":"VNxNIg5fpt","time":1635528928,"event":"keepalive","topic":"test"}
|
|
</code>
|
|
<p class="smallMarginBottom">
|
|
To consume JSON instead, use the <tt>/json</tt> endpoint, which prints one message per line:
|
|
</p>
|
|
<code>
|
|
$ curl -s ntfy.sh/mytopic/json<br/>
|
|
{"id":"SLiKI64DOt","time":1635528757,"event":"open","topic":"mytopic"}<br/>
|
|
{"id":"hwQ2YpKdmg","time":1635528741,"event":"message","topic":"mytopic","message":"Hi!"}<br/>
|
|
{"id":"DGUDShMCsc","time":1635528787,"event":"keepalive","topic":"mytopic"}
|
|
</code>
|
|
<p class="smallMarginBottom">
|
|
Or use the <tt>/raw</tt> endpoint if you need something super simple (empty lines are keepalive messages):
|
|
</p>
|
|
<code>
|
|
$ curl -s ntfy.sh/mytopic/raw<br/>
|
|
<br/>
|
|
This is a notification
|
|
</code>
|
|
|
|
<h3>Message buffering and polling</h3>
|
|
<p class="smallMarginBottom">
|
|
Messages are buffered in memory for a few hours to account for network interruptions of subscribers.
|
|
You can read back what you missed by using the <tt>since=...</tt> query parameter. It takes either a
|
|
duration (e.g. <tt>10m</tt> or <tt>30s</tt>) or a Unix timestamp (e.g. <tt>1635528757</tt>):
|
|
</p>
|
|
<code>
|
|
$ curl -s "ntfy.sh/mytopic/json?since=10m"<br/>
|
|
# Same output as above, but includes messages from up to 10 minutes ago
|
|
</code>
|
|
<p class="smallMarginBottom">
|
|
You can also just poll for messages if you don't like the long-standing connection using the <tt>poll=1</tt>
|
|
query parameter. The connection will end after all available messages have been read. This parameter has to be
|
|
combined with <tt>since=</tt>.
|
|
</p>
|
|
<code>
|
|
$ curl -s "ntfy.sh/mytopic/json?poll=1&since=10m"<br/>
|
|
# Returns messages from up to 10 minutes ago and ends the connection
|
|
</code>
|
|
|
|
<h2>FAQ</h2>
|
|
<p>
|
|
<b>Isn't this like ...?</b><br/>
|
|
Who knows. I didn't do a lot of research before making this. It was fun making it.
|
|
</p>
|
|
|
|
<p>
|
|
<b>Can I use this in my app? Will it stay free?</b><br/>
|
|
Yes. As long as you don't abuse it, it'll be available and free of charge. I do not plan on monetizing
|
|
the service.
|
|
</p>
|
|
|
|
<p>
|
|
<b>What are the uptime guarantees?</b><br/>
|
|
Best effort.
|
|
</p>
|
|
|
|
<p>
|
|
<b>Will you know what topics exist, can you spy on me?</b><br/>
|
|
If you don't trust me or your messages are sensitive, run your own server. It's <a href="https://github.com/binwiederhier/ntfy">open source</a>.
|
|
That said, the logs do not contain any topic names or other details about you. Check the code if you don't believe me.
|
|
</p>
|
|
|
|
<p>
|
|
<b>Why is Firebase used?</b><br/>
|
|
In addition to caching messages locally and delivering them to long-polling subscribers, all messages are also
|
|
published to Firebase Cloud Messaging (FCM) (if <tt>FirebaseKeyFile</tt> is set, which it is on ntfy.sh). This
|
|
is to facilitate instant notifications on Android. I tried really, really hard to avoid using FCM, but newer
|
|
versions of Android made it impossible to implement <a href="https://developer.android.com/guide/background">background services</a>>.
|
|
I'm sorry.
|
|
</p>
|
|
|
|
<h2>Privacy policy</h2>
|
|
<p>
|
|
Neither the server nor the app record any personal information, or share any of the messages and topics with
|
|
any outside service. All data is exclusively used to make the service function properly. The one exception
|
|
is the Firebase Cloud Messaging (FCM) service, which is required to provide instant Android notifications (see
|
|
FAQ for details).
|
|
</p>
|
|
<p>
|
|
The web server does not log or otherwise store request paths, remote IP addresses or even topics or messages,
|
|
aside from a short on-disk cache (up to a day) to support service restarts.
|
|
</p>
|
|
|
|
<center id="ironicCenterTagDontFreakOut"><i>Made with ❤️ by <a href="https://heckel.io">Philipp C. Heckel</a></i></center>
|
|
</div>
|
|
<script src="static/js/app.js"></script>
|
|
</body>
|
|
</html>
|