How To Bulk Import IoT Devices In Azure IoT Hub Using C#

Ravishankar N

6y24k5100Article

IoT Azure IoT Hub ImportIoT deviceBulk

5 Comments

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Muralidharan V6y ago
How to remove the bulk devices in IoThub
Muralidharan V6y ago
Severity Code Description Project File Line Suppression StateError CS5001 Program does not contain a static 'Main' metSeverity Code Description Project File Line Suppression StateError CS5001 Program does not contain a static 'Main' method suitable for an entry point BulkDevicesRegistrartion hod suitable for an entry point BulkDevicesRegistrartion
Karthik Kasula6y ago
I am facing these error:Microsoft.Azure.Devices.Common.Exceptions.UnauthorizedException: '{"Message":"ErrorCode:IotHubUnauthorizedAccess;Unauthorized","ExceptionMessage":"Tracking ID:8a332d7bec3b48e5bf467779ed8f47e1-G:3-TimeStamp:12/11/2019 12:58:04"}'
- Ravishankar N6y ago
  Check your IoTHubOwner Connection String.
bala bhuvan7y ago
IotHubCommunicationException: An error occurred while sending the request. Getting this error. I tried many times

Introduction

Azure IoT Hub is a cloud gateway which supports open source SDKs and multiple protocols. IoT Hub communicates both ways - devices to cloud and cloud to devices. The IoT Hub monitoring helps to check device health, failures, and device connection status.

Please read the previous parts of the series before continuing with this one.

Creating a C# Console Application

Open Visual Studio -> choose to create a new project.

Select Console App (.NET Core) and click "Next".

How To Bulk Import IoT Devices In Azure IoT Hub Using C#

Enter the project name, location, and solution name.
Click "Create".

Installing Microsoft.Azure.Devices NuGet package

Go to Project -> Manage NuGet Packages.
Click the "Browse" tab and search for Microsoft.Azure.Devices. You will see Microsoft.Azure.Devices SDK listed in the search results; click the "Install" button.
Now, click the "I Accept" button to accept the license agreement.
It will take a few minutes to install the SDK in our project.

Get IoT Hub Connection string from Azure IoT Hub

Open your Azure portal and choose your IoT Hub.
Click "Shared access policies" in "Settings". You can see the list of policies to the IoT Hub.
Double click the iothubowner policy and copy the connection string from the Shared access key.

Here, I have used RegistryManager class. It contains methods that services can use to perform create, update, and delete operations on devices.
Also, we have used the AddDeviceAsync() method to create bulk IoT devices.

Open the program.cs file and type the below code.

using System;
using System.Threading.Tasks;
using Microsoft.Azure.Devices;
using Microsoft.Azure.Devices.Common.Exceptions;
namespace IoTDeviceBulkImpExp
{
class Program
{
private static RegistryManager registryManager;
private static string connectionString = "Enter the IoT Hub Connection String";
static async Task Main(string[] args)
{
registryManager = RegistryManager.CreateFromConnectionString(connectionString);
string deviceId = "device";
for (int i = 0; i < 10; i++)
{
string newDeviceId = deviceId + i;
await AddDeviceAsync(newDeviceId);
}
}
private async static Task AddDeviceAsync(string deviceId)
{
//string deviceId = "DeviceThree";
Device device;
try
{
Console.WriteLine("New device:");
var d = new Device(deviceId);
device = await registryManager.AddDeviceAsync(d);
}
catch (DeviceAlreadyExistsException)
{
Console.WriteLine("Already existing device:");
device = await registryManager.
GetDeviceAsync(deviceId);
}
Console.WriteLine("Generated device key: {0}",
device.Authentication.SymmetricKey.PrimaryKey);
}
}
}

Run the project using F5 function key.

Now, go to the Azure Portal and check the new IoT devices that are created.

That’s it. I hope you have learned how to bulk import the IoT devices in Azure IoT Hub programmatically using C#. Feel free to fill up the comment box below if you need any further assistance.