Pushing data to Azure

Hello everyone. I'm trying to upload dummy data(ideally a stream of live data) to the cloud, Azure. However, there is an error as shown. I'm following exact instruction as mentioned here (https://flows.nodered.org/node/@tsib/node-red-azure-iot-hub-mod).


I'm using v8.16.0 and npm 6.4.1.
Even though there is data transmission to Azure as shown below, the transmission is quite unstable.

Please advise. Thanks much in advance.

The error seems clear:

image

Not sure what the options in the dropdown are but you shouldn't be pushing anything over the Internet without using HTTPS.