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README.md

Day 22 - Device and App Management with Intune

Prerequisites

To complete this sample you need the following:

  • Complete the Base Console Application Setup
  • Visual Studio Code installed on your development machine. If you do not have Visual Studio Code, visit the previous link for download options. (Note: This tutorial was written with Visual Studio Code version 1.52.1. The steps in this guide may work with other versions, but that has not been tested.)
  • .Net Core SDK. (Note This tutorial was written with .Net Core SDK 5.0.101. The steps in this guide may work with other versions, but that has not been tested.)
  • C# extension for Visual Studio Code
  • A Microsoft work or school account.
  • An Intune subscription, if you don't have an Intune subscription Create a free trial

If you don't have a Microsoft account you can sign up for the Office 365 Developer Program to get a free Office 365 subscription.

Step 1: Update the App Registration permissions

As this exercise requires new permissions the App Registration needs to be updated to include the DeviceManagementApps.ReadWrite.All), DeviceManagementConfiguration.ReadWrite.All, and DeviceManagementManagedDevices.Read.All permissions using the new Azure AD Portal App Registrations UI.

  1. Open a browser and navigate to the Azure AD Portal app registrations page. Login using a personal account (aka: Microsoft Account) or Work or School Account with permissions to create app registrations.

    Note: If you do not have permissions to create app registrations contact your Azure AD domain administrators.

  2. Click on the .NET Core Graph Tutorial item in the list

    Note: If you used a different name while completing the Base Console Application Setup select that instead.

  3. Click API permissions from the current blade content.

    1. Click Add a permission from the current blade content.

    2. On the Request API permissions flyout select Microsoft Graph.

      Screenshot of selecting Microsoft Graph permission to add to app registration

    3. Select Delegated permissions.

    4. In the "Select permissions" search box type "DeviceManagement>".

    5. Select DeviceManagementApps.ReadWrite.All, DeviceManagementConfiguration.ReadWrite.All, and DeviceManagementManagedDevices.Read.All from the filtered list.

      Screenshot of adding application permission for User.Read.All permission

    6. Click Add permissions at the bottom of flyout.

  4. Back on the API permissions content blade, click Grant admin consent for <name of tenant>.
    Screenshot of granting admin consent for newly added permission

    1. Click Yes.

    Note: Make sure you do not have any application permission already selected, it will make the request fail. If you do have some, remove them before granting the new permissions.

Step 2: Extend the application with IntuneHelper class

In this step you will create a Helper method that encapsulates the logic for interacting with Intune and then add calls to the console application created in the Device Code Flow.

Important: Ensure that you follow the steps from Day 20 Device Code Flow exercise or today's application updates will not leverage the proper authentication flow necessary to be successful.

  1. Create a new file in the Helpers folder called IntuneHelper.cs.

  2. Replace the contents of IntuneHelper.cs with the following code:

    using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using Microsoft.Graph;

namespace ConsoleGraphTest
{
    public class IntuneHelper
    {
        private GraphServiceClient _graphClient;

        public IntuneHelper(GraphServiceClient graphClient)
        {
            if (null == graphClient) throw new ArgumentNullException(nameof(graphClient));
            _graphClient = graphClient;
        }

        /// <summary>
        /// Get the list of Intune managed devices for a user.
        /// </summary>
        /// <param name="userPrincipalName">The user principal name (UPN) for the user</param>
        /// <returns>The Intune managed devices.</returns>
        public async Task<ICollection<ManagedDevice>> ListManagedDevicesForUser(string userPrincipalName)
        {
            List<ManagedDevice> managedDevices = new List<ManagedDevice>();
            List<QueryOption> queryOptions = new List<QueryOption>
            {
                new QueryOption("$orderby", "deviceName")
            };

            var deviceResults = await _graphClient.Users[userPrincipalName].ManagedDevices.Request(queryOptions).GetAsync();

            managedDevices.AddRange(deviceResults.CurrentPage);

            // Page through the results in case there are more than one page of devices.
            while (deviceResults.NextPageRequest != null)
            {
                deviceResults = await deviceResults.NextPageRequest.GetAsync();
                managedDevices.AddRange(deviceResults.CurrentPage);
            }

            return managedDevices;
        }

        /// <summary>
        /// Publish a web app to Intune
        /// </summary>
        /// <param name="url">The url for the website</param>
        /// <param name="name">The name of the website</param>
        /// <param name="publisher">The name of the publisher</param>
        /// <returns>The created app</returns>
        public async Task<WebApp> PublishWebApp(string url, string name, string publisher)
        {
            var webApp = new WebApp
            {
                AppUrl = url,
                DisplayName = name,
                Publisher = publisher
            };

            return await _graphClient.DeviceAppManagement.MobileApps.Request().AddAsync(webApp) as WebApp;
        }

        /// <summary>
        /// Assign an Intune MobileApp to all users.
        /// </summary>
        /// <param name="app">The application to assign.</param>
        /// <returns>The assignements for the app.</returns>
        public async Task<ICollection<MobileAppAssignment>> AssignAppToAllUsers(MobileApp app)
        {
            var assignment = BuildMobileAppAssignment();

            await _graphClient.DeviceAppManagement.MobileApps[app.Id].Assign(new[] { assignment }).Request().PostAsync();

            return await _graphClient.DeviceAppManagement.MobileApps[app.Id].Assignments.Request().GetAsync();
        }

        /// <summary>
        /// Create a Windows 10 Device Configuration in Intune
        /// </summary>
        /// <param name="displayName">The display name of the device configuration.</param>
        /// <param name="edgeHomePage">The homepage to show in Edge</param>
        /// <param name="enableDeveloperMode">Enable developer mode on the device.</param>
        /// <returns>The created device configuraton</returns>
        public async Task<DeviceConfiguration> CreateWindowsDeviceConfiguration(string displayName, string edgeHomePage, bool enableDeveloperMode)
        {
            var deviceConfiguration = new Windows10GeneralConfiguration
            {
                DisplayName = displayName,
                EdgeHomepageUrls = new[] { edgeHomePage },
                DeveloperUnlockSetting = enableDeveloperMode ? StateManagementSetting.Allowed : StateManagementSetting.Blocked
            };

            return await _graphClient.DeviceManagement.DeviceConfigurations.Request().AddAsync(deviceConfiguration);
        }

        /// <summary>
        /// Assigns an Intune Device Configuration to all Intune managed devices
        /// </summary>
        /// <param name="deviceConfiguration">The device configuration.</param>
        /// <returns>The assignments for the device configuration.</returns>
        public async Task<ICollection<DeviceConfigurationAssignment>> AssignDeviceConfigurationToAllDevices(DeviceConfiguration deviceConfiguration)
        {
            var assignment = BuildDeviceConfigurationAssignment();

            await _graphClient.DeviceManagement.DeviceConfigurations[deviceConfiguration.Id].Assign(new[] { assignment }).Request().PostAsync();

            return await _graphClient.DeviceManagement.DeviceConfigurations[deviceConfiguration.Id].Assignments.Request().GetAsync();
        }

        /// <summary>
        /// Create a mobile app assignement for all users.
        /// </summary>
        /// <returns>The mobile app assignment</returns>
        private static MobileAppAssignment BuildMobileAppAssignment()
        {
            return new MobileAppAssignment
            {
                Intent = InstallIntent.Available,
                Target = new AllLicensedUsersAssignmentTarget()
            };
        }

        /// <summary>
        /// Create a device configuration assignment for all devices
        /// </summary>
        /// <returns>The device configuration assignment</returns>
        private static DeviceConfigurationAssignment BuildDeviceConfigurationAssignment()
        {
            return new DeviceConfigurationAssignment
            {
                Target = new AllDevicesAssignmentTarget()
            };
        }
    }
}

This class contains the code to list managed devices, publish / assign a web app, and create / assign a Windows device configuration.

Step 3: Extend the Program to list Managed Devices for a User

  1. Inside the Program class add a new method ListManagedDevices with the following definition. This method will list all the Intune managed devices for a user.

    private static async Task ListManagedDevices(IntuneHelper intuneHelper, string userPrincipalName)
{
    var managedDevices = await intuneHelper.ListManagedDevicesForUser(userPrincipalName);

    Console.WriteLine($"Number of Intune managed devices for user {userPrincipalName}: {managedDevices.Count()}");
    Console.WriteLine(managedDevices.Select(x => $"-- {x.DeviceName} : {x.Manufacturer} {x.Model}").Aggregate((x, y) => $"{x}\n{y}"));
}

  2. Inside the Program class add the main helper method IntuneHelperCall with the following definition. We will build on this method during the exercise.

    private static async Task IntuneHelperCall(IConfigurationRoot config)
{
    const string userPrincipalName = "<user>";

    var graphClient = GetAuthenticatedGraphClient(config);
    var intuneHelper = new IntuneHelper(graphClient);

    await ListManagedDevices(intuneHelper, userPrincipalName);
}

    Important: Be sure to replace <user> with the user principal name of a valid user.

  3. Continuing in the Main method add the following code to call the new method.

    IntuneHelperCall(config).GetAwaiter().GetResult();

  4. Above the Program class, add a reference to Linq adding this line.

    using System.Linq;

  5. Save all files.

The console application is now able to list all Intune Managed Devices for a user. In order to test the console application run the following commands from the command line:

dotnet build
dotnet run

Step 4: Extend the program to publish a web app

  1. Inside the Program class add a new method PublishWebApp with the following definition. This method will publish a web app.

    private static async Task<WebApp> PublishWebApp(IntuneHelper intuneHelper, string url, string name, string publisher)
{
    var webApp = await intuneHelper.PublishWebApp(url, name, publisher);

    Console.WriteLine($"Published web app: {webApp.Id}: {webApp.DisplayName} - {webApp.AppUrl}");

    return webApp;
}

  2. Continuing in the IntuneHelperCall method add the following code to call the new method.

    WebApp app = await PublishWebApp(
    intuneHelper,
    "http://aka.ms/30DaysMsGraph",
    "30 Days of MS Graph",
    "Microsoft Corporation");

  3. Save all files.

The console application is now able to publish a web app to Intune. In order to test the console application run the following commands from the command line:

dotnet build
dotnet run

Step 5: Extend the program to assign an app to all users

  1. Inside the Program class add a new method AssignAppToAllUsers with the following definition. This method will publish assign an app to a group.

    private static async Task AssignAppToAllUsers(IntuneHelper intuneHelper, MobileApp app)
{
    var assignments = await intuneHelper.AssignAppToAllUsers(app);
    Console.WriteLine($"App {app.DisplayName} has {assignments.Count()} assignments");
}

  2. Continuing in the IntuneHelperCall method add the following code to call the new method.

    await AssignAppToAllUsers(intuneHelper, app);

  3. Save all files.

The console application is now able to publish a web app to Intune. In order to test the console application run the following commands from the command line:

dotnet build
dotnet run

Step 6: Extend the program to create a Device Configuration Policy

  1. Inside the Program class add a new method CreateWindowsDeviceConfiguration with the following definition. This method will create a Windows Device Configuration.

        private static async Task<DeviceConfiguration> CreateWindowsDeviceConfiguration(IntuneHelper intuneHelper, string displayName, string edgeHomePage, bool enableDeveloperMode)
    {
        var deviceConfiguration = await intuneHelper.CreateWindowsDeviceConfiguration(
            displayName,
            edgeHomePage,
            enableDeveloperMode);

        Console.WriteLine($"Created Device Configuration: {deviceConfiguration.Id}: {deviceConfiguration.DisplayName}");

        return deviceConfiguration;
    }

  2. Continuing in the IntuneHelperCall method add the following code to call the new method.

    DeviceConfiguration deviceConfiguration = await CreateWindowsDeviceConfiguration(
    intuneHelper,
    "Windows 10 Developer Configuration",
    "http://aka.ms/30DaysMsGraph",
    true);

  3. Save all files.

The console application is now able to create a Windows Device Configuration. In order to test the console application run the following commands from the command line:

dotnet build
dotnet run

Step 7: Extend the program to assign a Device Configuration Policy to all devices

  1. Inside the Program class add a new method AssignDeviceConfigurationToAllDevices with the following definition. This method will assign a device configuration to all Intune managed devices.

    private static async Task AssignDeviceConfigurationToAllDevices(IntuneHelper intuneHelper, DeviceConfiguration deviceConfiguration)
{
    var assignments = await intuneHelper.AssignDeviceConfigurationToAllDevices(deviceConfiguration);
    Console.WriteLine($"Device Configuration {deviceConfiguration.DisplayName} has {assignments.Count()} assignments");
}

  2. Continuing in the IntuneHelperCall method add the following code to call the new method.

    await AssignDeviceConfigurationToAllDevices(intuneHelper, deviceConfiguration);

  3. Save all files.

The console application is now able to assign a device configuration to all Intune managed devices. In order to test the console application run the following commands from the command line:

dotnet build
dotnet run