Is there a way to get number of messages per IoT device sending to IoT Hub

Question

Hello,

Below code gives me current messages count for IoT hub which is overall count of messages from all the devices.

var iotHubClient = await GetIotHubClient();  
                var mi = await iotHubClient.IotHubResource.GetQuotaMetricsAsync(Configuration["ResourceGroupName", "IotHubName");  
                foreach (var info in mi)  
                {  
                    if (info.Name != "TotalMessages") continue;  
                    if (info.CurrentValue != null)  
                    {  
                        var currentMessageCount = ((long)info.CurrentValue);  
                    }  
                }  

Is there a way to find out which device sending how much data, some kind of metrics by which I can identify the device which is sending more messages and I can take some action?

Answer 1

Hello @Mohammad Ajmal Yazdani ,

the IoT Hub offers metrics per IoT Hub only.

It does not collect or shares data over individual devices.

If you want to know how much your device is consuming, you need to collect/program your own metrics. This is a common non-functional requirement.

This can be done by adding logic to Azure Stream Analytics jobs, Azure functions, or querying the cold path/ data lake (perhaps Azure Data Explorer?) if you have this in place.