google-iot-mqtt-publisher is a MQTT client used to publish messages to a specific topic on Google Cloud IoT.
Fetch the third party libraries:
$ go get
Build for x86:
$ go build -o google-iot-mqtt-publisher
Build for arm64:
env GOOS=linux GOARCH=arm64 go build -o google-iot-mqtt-publisher
This will generate an executable with the filename of google-iot-mqtt-publisher in the same directory. Note that the certs directory must be distributed alongside with the executable and both must be located in the same directory. Otherwise, the application will not work correctly.
$ ./google-iot-mqtt-publisher --help
google-iot-mqtt-publisher is a MQTT client used to publish messages to a specific topic on Google Cloud IoT.
Usage:
google-iot-mqtt-publisher [flags]
Flags:
-d, --device-id string Device ID
-m, --message string A string which will be sent to a topic.
-p, --project-id string Project ID
-r, --registry-id string Registry ID
-t, --topic string A topic to which the message will be sent.
Example:
To publish a message, run the google-iot-mqtt-publisher tool with the correct values for flags.
$ ./google-iot-mqtt-publisher --project-id "eco-world-166017" --registry-id "example-registry" --device-id "example-device" --topic "events" --message "some really cool message containing telemetry data"
To fetch the published message, you can use the gcloud available from Google Cloud SDK.
$ gcloud beta pubsub subscriptions pull --auto-ack projects/eco-world-166017/subscriptions/my-sub
How to use google-iot-mqtt-publisher: https://asciinema.org/a/4qe9gmh5rwa971zflze67b12b
The google-iot-mqtt-publisher depends on following libraries:
| Library Name | Link | License |
|---|---|---|
| Cobra | https://github.com/spf13/cobra | Apache-2.0 |
| Eclipse Paho MQTT Go client | https://github.com/eclipse/paho.mqtt.golang | EPL-1.0 |
| jwt-go | https://github.com/dgrijalva/jwt-go | MIT |