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* e.g. to e.g., and proper case for Home Assistant * Instructions how to -> Instructions on how to
29 lines
784 B
Markdown
29 lines
784 B
Markdown
---
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layout: page
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title: "MQTT Publish service"
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description: "Instructions on how to setup the MQTT Publish service within Home Assistant."
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date: 2015-08-07 18:00
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sidebar: true
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comments: false
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sharing: true
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footer: true
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logo: mqtt.png
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---
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The MQTT component will register the service `publish` which allows publishing messages to MQTT topics. There are two ways of specifying your payload. You can either use `payload` to hard-code a payload or use `payload_template` to specify a [template](/topics/templating/) that will be rendered to generate the payload.
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```json
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{
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"topic": "home-assistant/light/1/command",
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"payload": "on"
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}
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```
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```json
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{
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"topic": "home-assistant/light/1/state",
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"payload_template": "{% raw %}{{ states('device_tracker.paulus') }}{% endraw %}"
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}
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```
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