Sending messages from Niagara to GCP

This procedure describes the steps to send messages from Niagara to GCP.

Prerequisites:

Connection is established between GCP and Niagara.

Navigate to Config > Drivers > AbstractMqttDriverNetwork > GcpMqttDevice and double-click Points.
MqttClientDriverPointManager window opens.
To add MqttStringPublishPoint click New..
A New window opens.
Select MqttStringPublishPoint from the drop-down list and click OK.
Another New window opens.
Enter the following parameters:
1. Name: Enter the name to be given to the point.
2. Local Point: Enter the file path where the publish point is created.
3. Topic: Enter the topic name as /devices/device_name/state, Enter the device name set in GCP console.
Click OK. Navigate to AX property sheet of the point created.
Navigate to Points > Proxy Ext > Set Value. Select any In slot and set value to desired text message. for example Hello World.
Go to GCP Console, IoT Core > Devices and select the correct device in which the message was sent to. Select Configuration and State.
In the Cloud Update section you should see a row with your message in base64 format.
Click the row with the message, select text to see the message in text format.