Difference between revisions of "V2/Integrate/Others/MQTT"
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<div class="important">Note: '''All''' tags and metrics must be sent in your message body, or they will be treated as invalid data and discarded.</div> | <div class="important">Note: '''All''' tags and metrics must be sent in your message body, or they will be treated as invalid data and discarded.</div> | ||
Latest revision as of 08:46, 31 March 2022
Publish to MQTT
To start sending data to Senfi, you need to do the following:
- Create an integration key/secret pair in the CMS.
- Design and create a measurement in the CMS.
- Write a program to read from your system and send it to Senfi's MQTT Endpoint.
A typical integration follows this pattern:
External system → Your application → Senfi MQTT endpoint
Either the external system you are monitoring pushes to your application, or your application polls the external system for its current values. Either way, once your application has the values of its measurement, you can prepare to send it to Senfi's MQTT endpoint.
MQTT Endpoint
- Host
- mqtt.senfi.io
- Port
- 1883
- Username
- <Your integration key>
- Password
- <Your integration secret>
- MQTT topic
- ingestor/2/0/live/text/array/<your integration key>/<your measurement code>
Message Format
The message body should be in valid JSON format.
Single measurement
{
"data": [
{
"tm_source": xxxxxxxxxx,
"tag1": "xxxxxxxx",
"tag2": "xxxxxxxx",
"metric1": xxxxxxxxx,
"metric2": xxxxxxxxx
...
}
]
}
Multiple measurements
{
"data": [
{
"tm_source": xxxxxxxxxx,
"tag1": "xxxxxxxx",
"tag2": "xxxxxxxx",
"metric1": xxxxxxxxx,
"metric2": xxxxxxxxx
...
},
{
"tm_source": xxxxxxxxxx
"tag1": "xxxxxxxx",
"tag2": "xxxxxxxx",
"metric1": xxxxxxxxx,
"metric2": xxxxxxxxx,
...
}
]
}
You must send Tags of the measurement in the message.
Note: All tags and metrics must be sent in your message body, or they will be treated as invalid data and discarded.
Sample Application
You can take a look at this GitHub repository for a sample application to send data to Senfi's MQTT endpoint.