ntfy/docs/publish.md

Publishing

Publishing messages can be done via HTTP PUT or POST. Topics are created on the fly by subscribing or publishing to them. Because there is no sign-up, the topic is essentially a password, so pick something that's not easily guessable.

Here's an example showing how to publish a simple message using a POST request:

=== "Command line (curl)"

```
curl -d "Backup successful 😀" ntfy.sh/mytopic
```

=== "HTTP"

``` http
POST /mytopic HTTP/1.1
Host: ntfy.sh

Backup successful 😀
```

=== "JavaScript"

``` javascript
fetch('https://ntfy.sh/mytopic', {
  method: 'POST', // PUT works too
  body: 'Backup successful 😀'
})
```

=== "Go"

``` go
http.Post("https://ntfy.sh/mytopic", "text/plain",
    strings.NewReader("Backup successful 😀"))
```

=== "PHP"

``` php-inline
file_get_contents('https://ntfy.sh/mytopic', false, stream_context_create([
    'http' => [
        'method' => 'POST', // PUT also works
        'header' => 'Content-Type: text/plain',
        'content' => 'Backup successful 😀'
    ]
]));
```

If you have the Android app installed on your phone, this will create a notification that looks like this:

{ width=500 }

Android notification

There are more features related to publishing messages: You can set a notification priority, a title, and tag messages 🥳 🎉. Here's an example that uses all of them at once:

=== "Command line (curl)"

```
curl \
  -H "Title: Unauthorized access detected" \
  -H "Priority: urgent" \
  -H "Tags: warning,skull" \
  -d "Remote access to phils-laptop detected. Act right away." \
  ntfy.sh/phil_alerts
```

=== "HTTP"

``` http
POST /phil_alerts HTTP/1.1
Host: ntfy.sh
Title: Unauthorized access detected
Priority: urgent
Tags: warning,skull

Remote access to phils-laptop detected. Act right away.
```

=== "JavaScript"

``` javascript
fetch('https://ntfy.sh/phil_alerts', {
    method: 'POST', // PUT works too
    body: 'Remote access to phils-laptop detected. Act right away.',
    headers: {
        'Title': 'Unauthorized access detected',
        'Priority': 'urgent',
        'Tags': 'warning,skull'
    }
})
```

=== "Go"

``` go
req, _ := http.NewRequest("POST", "https://ntfy.sh/phil_alerts",
    strings.NewReader("Remote access to phils-laptop detected. Act right away."))
req.Header.Set("Title", "Unauthorized access detected")
req.Header.Set("Priority", "urgent")
req.Header.Set("Tags", "warning,skull")
http.DefaultClient.Do(req)
```

=== "PHP"

``` php-inline
file_get_contents('https://ntfy.sh/phil_alerts', false, stream_context_create([
    'http' => [
        'method' => 'POST', // PUT also works
        'header' =>
            "Content-Type: text/plain\r\n" .
            "Title: Unauthorized access detected\r\n" .
            "Priority: urgent\r\n" .
            "Tags: warning,skull",
        'content' => 'Remote access to phils-laptop detected. Act right away.'
    ]
]));
```

{ width=500 }

Urgent notification with tags and title

Message title

The notification title is typically set to the topic short URL (e.g. ntfy.sh/mytopic). To override the title, you can set the X-Title header (or any of its aliases: Title, ti, or t).

=== "Command line (curl)"

```
curl -H "X-Title: Dogs are better than cats" -d "Oh my ..." ntfy.sh/controversial
curl -H "Title: Dogs are better than cats" -d "Oh my ..." ntfy.sh/controversial
curl -H "t: Dogs are better than cats" -d "Oh my ..." ntfy.sh/controversial
```

=== "HTTP"

``` http
POST /controversial HTTP/1.1
Host: ntfy.sh
Title: Dogs are better than cats

Oh my ...
```

=== "JavaScript"

``` javascript
fetch('https://ntfy.sh/controversial', {
    method: 'POST',
    body: 'Oh my ...',
    headers: { 'Title': 'Dogs are better than cats' }
})
```

=== "Go"

``` go
req, _ := http.NewRequest("POST", "https://ntfy.sh/controversial", strings.NewReader("Oh my ..."))
req.Header.Set("Title", "Dogs are better than cats")
http.DefaultClient.Do(req)
```

=== "PHP"

``` php-inline
file_get_contents('https://ntfy.sh/controversial', false, stream_context_create([
    'http' => [
        'method' => 'POST',
        'header' =>
            "Content-Type: text/plain\r\n" .
            "Title: Dogs are better than cats",
        'content' => 'Oh my ...'
    ]
]));
```

{ width=500 }

Detail view of notification with title

Message priority

All messages have a priority, which defines how urgently your phone notifies you. You can set custom notification sounds and vibration patterns on your phone to map to these priorities (see Android config).

The following priorities exist:

Priority	Icon	ID	Name	Description
Max priority		5	max/urgent	Really long vibration bursts, default notification sound with a pop-over notification.
High priority		4	high	Long vibration burst, default notification sound with a pop-over notification.
Default priority	(none)	3	default	Short default vibration and sound. Default notification behavior.
Low priority		2	low	No vibration or sound. Notification will not visibly show up until notification drawer is pulled down.
Min priority		1	min	No vibration or sound. The notification will be under the fold in "Other notifications".

You can set the priority with the header X-Priority (or any of its aliases: Priority, prio, or p).

=== "Command line (curl)"

```
curl -H "X-Priority: 5" -d "An urgent message" ntfy.sh/phil_alerts
curl -H "Priority: low" -d "Low priority message" ntfy.sh/phil_alerts
curl -H p:4 -d "A high priority message" ntfy.sh/phil_alerts
```

=== "HTTP"

``` http
POST /phil_alerts HTTP/1.1
Host: ntfy.sh
Priority: 5

An urgent message
```

=== "JavaScript"

``` javascript
fetch('https://ntfy.sh/phil_alerts', {
    method: 'POST',
    body: 'An urgent message',
    headers: { 'Priority': '5' }
})
```

=== "Go"

``` go
req, _ := http.NewRequest("POST", "https://ntfy.sh/phil_alerts", strings.NewReader("An urgent message"))
req.Header.Set("Priority", "5")
http.DefaultClient.Do(req)
```

=== "PHP"

``` php-inline
file_get_contents('https://ntfy.sh/phil_alerts', false, stream_context_create([
    'http' => [
        'method' => 'POST',
        'header' =>
            "Content-Type: text/plain\r\n" .
            "Priority: 5",
        'content' => 'An urgent message'
    ]
]));
```

{ width=500 }

Detail view of priority notifications

Tags & emojis 🥳 🎉

You can tag messages with emojis and other relevant strings:

• Emojis: If a tag matches an emoji short code, it'll be converted to an emoji and prepended to title or message.
• Other tags: If a tag doesn't match, it will be listed below the notification.

This feature is useful for things like warnings (⚠️, ️🚨, or 🚩), but also to simply tag messages otherwise (e.g. script names, hostnames, etc.). Use the emoji short code list to figure out what tags can be converted to emojis. Here's an excerpt of emojis I've found very useful in alert messages:

Tag Emoji +1 👍️ partying_face 🥳 tada 🎉 heavy_check_mark ✔️ loudspeaker 📢 ... ...

Tag Emoji -1 👎️ warning ⚠️ rotating_light ️🚨 triangular_flag_on_post 🚩 skull 💀 ... ...

Tag Emoji facepalm 🤦 no_entry ⛔ no_entry_sign 🚫 cd 💿 computer 💻 ... ...

You can set tags with the X-Tags header (or any of its aliases: Tags, or ta). Specify multiple tags by separating them with a comma, e.g. tag1,tag2,tag3.

=== "Command line (curl)"

```
curl -H "X-Tags: warning,mailsrv13,daily-backup" -d "Backup of mailsrv13 failed" ntfy.sh/backups
curl -H "Tags: horse,unicorn" -d "Unicorns are just horses with unique horns" ntfy.sh/backups
curl -H ta:dog -d "Dogs are awesome" ntfy.sh/backups
```

=== "HTTP"

``` http
POST /backups HTTP/1.1
Host: ntfy.sh
Tags: warning,mailsrv13,daily-backup

Backup of mailsrv13 failed
```

=== "JavaScript"

``` javascript
fetch('https://ntfy.sh/backups', {
    method: 'POST',
    body: 'Backup of mailsrv13 failed',
    headers: { 'Tags': 'warning,mailsrv13,daily-backup' }
})
```

=== "Go"

``` go
req, _ := http.NewRequest("POST", "https://ntfy.sh/backups", strings.NewReader("Backup of mailsrv13 failed"))
req.Header.Set("Tags", "warning,mailsrv13,daily-backup")
http.DefaultClient.Do(req)
```

=== "PHP"

``` php-inline
file_get_contents('https://ntfy.sh/backups', false, stream_context_create([
    'http' => [
        'method' => 'POST',
        'header' =>
            "Content-Type: text/plain\r\n" .
            "Tags: warning,mailsrv13,daily-backup",
        'content' => 'Backup of mailsrv13 failed'
    ]
]));
```

{ width=500 }

Detail view of notifications with tags