From 53375ff559c8a326afd3e5f8f4e947254fe9d672 Mon Sep 17 00:00:00 2001
From: Philipp Heckel <pheckel@datto.com>
Date: Tue, 15 Mar 2022 08:27:17 -0400
Subject: [PATCH] Examples

---
 docs/deprecations.md |  4 ++--
 docs/examples.md     | 31 +++++++++++++++++++++++++++++++
 docs/faq.md          |  7 ++++---
 3 files changed, 37 insertions(+), 5 deletions(-)

diff --git a/docs/deprecations.md b/docs/deprecations.md
index 133a831..e34b492 100644
--- a/docs/deprecations.md
+++ b/docs/deprecations.md
@@ -5,13 +5,13 @@ This page is used to list deprecation notices for ntfy. Deprecated commands and
 ## Active deprecations
 
 ### Android app: WebSockets will become the default connection protocol  
-> since 2022-03-13
+> since 2022-03-13, behavior will change in **June 2022**
 
 In future versions of the Android app, instant delivery connections and connections to self-hosted servers will
 be using the WebSockets protocol. This potentially requires [configuration changes in your proxy](https://ntfy.sh/docs/config/#nginxapache2caddy).
 
 ### Android app: Using `since=<timestamp>` instead of `since=<id>`
-> since 2022-02-27
+> since 2022-02-27, behavior will change in **May 2022**
 
 In about 3 months, the Android app will start using `since=<id>` instead of `since=<timestamp>`, which means that it will
 not work with servers older than v1.16.0 anymore. This is to simplify handling of deduplication in the Android app.
diff --git a/docs/examples.md b/docs/examples.md
index 67aa73f..ebcc37d 100644
--- a/docs/examples.md
+++ b/docs/examples.md
@@ -16,6 +16,27 @@ rsync -a root@laptop /backups/laptop \
   || curl -H tags:warning -H prio:high -d "Laptop backup failed" ntfy.sh/backups
 ```
 
+## Low disk space alerts
+Here's a simple cronjob that I use to alert me when the disk space on the root disk is running low. It's simple, but 
+effective. 
+
+``` bash 
+#!/bin/bash
+
+mingigs=10
+avail=$(df | awk '$6 == "/" && $4 < '$mingigs' * 1024*1024 { print $4/1024/1024 }')
+topicurl=https://ntfy.sh/mytopic
+
+if [ -n "$avail" ]; then
+  curl \
+    -d "Only $avail GB available on the root disk. Better clean that up." \
+    -H "Title: Low disk space alert on $(hostname)" \
+    -H "Priority: high" \
+    -H "Tags: warning,cd" \
+    $topicurl
+fi
+```
+
 ## Server-sent messages in your web app
 Just as you can [subscribe to topics in the Web UI](subscribe/web.md), you can use ntfy in your own
 web application. Check out the <a href="/example.html">live example</a> or just look the source of this page.
@@ -93,3 +114,13 @@ Or, if you only want to send notifications using shoutrrr:
 ```
 shoutrrr send -u "generic+https://ntfy.sh/my_watchtower_topic?title=WatchtowerUpdates" -m "testMessage"
 ```
+
+## Random cronjobs
+Alright, here's one for the history books. I desperately want the `github.com/ntfy` organization, but all my tickets with
+GitHub have been hopeless. In case it ever becomes available, I want to know immediately.
+
+``` cron
+# Check github/ntfy user
+*/6 * * * * if curl -s https://api.github.com/users/ntfy | grep "Not Found"; then curl -d "github.com/ntfy is available" -H "Tags: tada" -H "Prio: high" ntfy.sh/my-alerts; fi
+~           
+```
diff --git a/docs/faq.md b/docs/faq.md
index 5105cc8..a1c385e 100644
--- a/docs/faq.md
+++ b/docs/faq.md
@@ -33,10 +33,11 @@ If you do not care for Firebase, I suggest you install the [F-Droid version](htt
 of the app and [self-host your own ntfy server](install.md).
 
 ## How much battery does the Android app use?
-If you use the ntfy.sh server and you don't use the [instant delivery](subscribe/phone.md#instant-delivery) feature, 
+If you use the ntfy.sh server, and you don't use the [instant delivery](subscribe/phone.md#instant-delivery) feature, 
 the Android app uses no additional battery, since Firebase Cloud Messaging (FCM) is used. If you use your own server, 
-or you use *instant delivery*, the app has to maintain a constant connection to the server, which consumes about 4% of
-battery in 17h of use (on my phone). I use it, and it makes no difference to me.
+or you use *instant delivery*, the app has to maintain a constant connection to the server, which consumes about 0-1% of
+battery in 17h of use (on my phone). There has been a ton of testing and improvement around this. I think it's pretty 
+decent now.
 
 ## What is instant delivery?
 [Instant delivery](subscribe/phone.md#instant-delivery) is a feature in the Android app. If turned on, the app maintains a constant connection to the