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<h1>ntfy.sh - simple HTTP-based pub-sub</h1>
<p>
<b>ntfy</b> (pronounce: <i>notify</i>) is a simple HTTP-based pub-sub notification service and tool.
It allows you to send <b>desktop notifications via scripts from any computer</b>, 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>
<p id="error"></p>
<h2>Subscribe to a topic</h2>
<p>
Topics are created on the fly by subscribing to them. 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>
<p>
Because there is no sign-up, <b>the topic is essentially a password</b>, so pick something that's not easily guessable.
</p>
<h3>Subscribe via web</h3>
<p>
If you subscribe to a topic via this web UI in the field below, messages published to any subscribed topic
will show up as <b>desktop notification</b>.
</p>
<form id="subscribeForm">
<p>
<label for="topicField">Topic ID:</label>
<input type="text" id="topicField" placeholder="Letters, numbers, _ and -" pattern="[-_A-Za-z]{1,64}" autofocus />
<input type="submit" id="subscribeButton" value="Subscribe" />
</p>
</form>
<p id="topicsHeader">Subscribed topics:</p>
<ul id="topicsList"></ul>
<audio id="notifySound" src="static/sound/mixkit-long-pop-2358.wav"></audio>
<h3>Subscribe via your app, or via the CLI</h3>
<code>
curl -s ntfy.sh/mytopic/raw # one message per line (\n are replaced with a space)<br/>
curl -s ntfy.sh/mytopic/json # one JSON message per line<br/>
curl -s ntfy.sh/mytopic/sse # server-sent events (SSE) stream
</code>
<h2>Publishing messages</h2>
<p>
Publishing messages can be done via PUT or POST using. Here's an example using <tt>curl</tt>:
</p>
<code>
curl -d "long process is done" ntfy.sh/mytopic
</code>
<p>
Messages published to a non-existing topic or a topic without subscribers will not be delivered later.
There is (currently) no buffering of any kind. If you're not listening, the message won't be delivered.
</p>
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