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Daniel O'Connor 2014-06-03 14:49:46 +09:30
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app/models/agents/mqtt_agent.rb
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@ -5,56 +5,55 @@ require "json"
module Agents
class MqttAgent < Agent
description <<-MD
The MQTT agent allows both publication and subscription to an MQTT topic.
The MQTT agent allows both publication and subscription to an MQTT topic.
MQTT is a generic transport protocol for machine to machine communication.
MQTT is a generic transport protocol for machine to machine communication.
You can do things like:
You can do things like:
* Publish to [RabbitMQ](http://www.rabbitmq.com/mqtt.html)
* Run [OwnTracks, a location tracking tool](http://owntracks.org/) for iOS and Android
* Subscribe to your home automation setup like [Ninjablocks](http://forums.ninjablocks.com/index.php?p=/discussion/661/today-i-learned-about-mqtt/p1) or [TheThingSystem](http://thethingsystem.com/dev/supported-things.html)
* Publish to [RabbitMQ](http://www.rabbitmq.com/mqtt.html)
* Run [OwnTracks, a location tracking tool](http://owntracks.org/) for iOS and Android
* Subscribe to your home automation setup like [Ninjablocks](http://forums.ninjablocks.com/index.php?p=/discussion/661/today-i-learned-about-mqtt/p1) or [TheThingSystem](http://thethingsystem.com/dev/supported-things.html)
Simply choose a topic (think email subject line) to publish/listen to, and configure your service.
Simply choose a topic (think email subject line) to publish/listen to, and configure your service.
It's easy to setup your own [broker](http://jpmens.net/2013/09/01/installing-mosquitto-on-a-raspberry-pi/) or connect to a [cloud service](www.cloudmqtt.com)
It's easy to setup your own [broker](http://jpmens.net/2013/09/01/installing-mosquitto-on-a-raspberry-pi/) or connect to a [cloud service](www.cloudmqtt.com)
Hints:
Many services run mqtts (mqtt over SSL) often with a custom certificate.
Hints:
Many services run mqtts (mqtt over SSL) often with a custom certificate.
You'll want to download their cert and install it locally, specifying the ```certificate_path``` configuration.
You'll want to download their cert and install it locally, specifying the ```certificate_path``` configuration.
Example configuration:
Example configuration:
<pre><code>{
'uri' => 'mqtts://user:pass@locahost:8883'
'ssl' => :TLSv1,
'ca_file' => './ca.pem',
'cert_file' => './client.crt',
'key_file' => './client.key',
'topic' => 'huginn'
}
</code></pre>
<pre><code>{
'uri' => 'mqtts://user:pass@locahost:8883'
'ssl' => :TLSv1,
'ca_file' => './ca.pem',
'cert_file' => './client.crt',
'key_file' => './client.key',
'topic' => 'huginn'
}
</code></pre>
Subscribe to CloCkWeRX's TheThingSystem instance (thethingsystem.com), where
temperature and other events are being published.
Subscribe to CloCkWeRX's TheThingSystem instance (thethingsystem.com), where
temperature and other events are being published.
<pre><code>{
'uri' => 'mqtt://kcqlmkgx:sVNoccqwvXxE@m10.cloudmqtt.com:13858'
'topic' => 'the_thing_system/demo'
}
</code></pre>
<pre><code>{
'uri' => 'mqtt://kcqlmkgx:sVNoccqwvXxE@m10.cloudmqtt.com:13858'
'topic' => 'the_thing_system/demo'
}
</code></pre>
Subscribe to all topics
<pre><code>{
'uri' => 'mqtt://kcqlmkgx:sVNoccqwvXxE@m10.cloudmqtt.com:13858'
'topic' => '/#'
}
</code></pre>
Find out more detail on [subscription wildcards](http://www.eclipse.org/paho/files/mqttdoc/Cclient/wildcard.html)
Subscribe to all topics
<pre><code>{
'uri' => 'mqtt://kcqlmkgx:sVNoccqwvXxE@m10.cloudmqtt.com:13858'
'topic' => '/#'
}
</code></pre>
Find out more detail on [subscription wildcards](http://www.eclipse.org/paho/files/mqttdoc/Cclient/wildcard.html)
MD
event_description <<-MD
@ -62,18 +61,7 @@ module Agents
<pre><code>{
"topic": "owntracks/kcqlmkgx/Dan",
"message": {
"topic": "owntracks/kcqlmkgx/Galaxy S3 Dan",
"message": {
"_type": "location",
"lat": "-34.849373",
"lon": "138.5218449",
"tst": "1401761484",
"acc": "10.0",
"batt": "71"
},
"time": 1401771825
},
"message": {"_type": "location", "lat": "-34.8493644", "lon": "138.5218119", "tst": "1401771049", "acc": "50.0", "batt": "31", "desc": "Home", "event": "enter"},
"time": 1401771051
}</code></pre>
MD