home-assistant.io/source/_docs/mqtt/testing.markdown
2022-06-07 18:29:31 +02:00

43 lines
1.4 KiB
Markdown

---
title: "MQTT Testing"
description: "Instructions on how to test your MQTT setup."
logo: mqtt.png
---
The `mosquitto` broker package ships commandline tools (often as `*-clients` package) to send and receive MQTT messages. For sending test messages to a broker running on `localhost` check the example below:
```bash
mosquitto_pub -h 127.0.0.1 -t home-assistant/switch/1/on -m "Switch is ON"
```
Another way to send MQTT messages manually is to use the "MQTT" integration in the frontend. Choose "Settings" on the left menu, click "Devices & Services", and choose "Configure" in the "Mosquitto broker" tile. Enter something similar to the example below into the "topic" field under "Publish a packet" and press "PUBLISH" .
```bash
home-assistant/switch/1/power
```
and in the Payload field
```bash
ON
```
In the "Listen to a topic" field, type `#` to see everything, or "home-assistant/switch/#" to just follow a published topic, then press "START LISTENING". The messages should appear similar to the text below:
```bash
Message 23 received on home-assistant/switch/1/power/stat/POWER at 12:16 PM:
ON
QoS: 0 - Retain: false
Message 22 received on home-assistant/switch/1/power/stat/RESULT at 12:16 PM:
{
"POWER": "ON"
}
QoS: 0 - Retain: false
```
For reading all messages sent on the topic `home-assistant` to a broker running on localhost:
```bash
mosquitto_sub -h 127.0.0.1 -v -t "home-assistant/#"
```