Hi, Started using "Azure IoT hub" node from here . It sends the data as a payload in MQTT/HTTP. If internet connectivity fails or IoT hub is not available while sending a data from node red how to handle? Can we get any response like connectivity error or message?

I haven't used that node, but the first thing I would do is to attach a Catch node to it and see if it generates errors for you. However, I would not hold out too much hope as I see it has not been updated in three years.

Watch for node status changes and handle accordingly. When connection is lost it should be reflected in the node status

can we send a data to Azure IoT Hub using MQTT out node? Like publish MQTT.

Does the status show anything helpful as suggested by @aderici ? If so you can use a status node.

That is okay. But if internet connectivity is lost then node status is not changing. This one is not reliable.

Does the node send a message at all in the error condition? If so then feed it into a debug node configured to show Complete Message and see what is in there.

@sathishkumarc14 You can also use http to communicate with iot hub, see an example here. Copy and import this flow : [{"id":"54de72b2.ff5d2c","type":"function","z":"ef196bfe.de8c48","name":"prepare IoT Hub message","func":"msg.payload = JSON.stringify({\"hello\": \"world\"})\nmsg.headers = {}\nmsg…

Thanks @aderici It is working fine.

[image] sathishkumarc14: can we send a data to Azure IoT Hub using MQTT out node? Have a look at this blog post ( here ), recently I was in similar situation like yours, found the solution for it using MQTT nodes for connection to Azure IoT Hub.

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Azure IoT Hub - Node - Connectivity Loss

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sathishkumarc14 10 February 2021 04:28 5

Catch node doesn't give any connectivity loss error or information. Is there any other way to send data from Node RED to Azure IoT Hub?

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Azure IoT Hub - Node - Connectivity Loss

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