Making MS Graph Requests using Managed Identities

This blog post is an extension to my previous post about how to get secrets and access tokens using Managed Identities with VB.Net and C#. You can read that post here. There is a c# sample for this particular blog here. The scenario here is that you already have the code to use the managed identities and now you want to get an access token for a resource that requires…

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Using Microsoft Graph PowerShell SDK to manage user consented permissions

The oAuth2PermissionGrant object keeps a record of user consented permissions (Delegated Permissions) in a tenant. There is one OAuth2PermissionGrant object (identified by Consent ID) for each combination of client application, resource application, and user. The sample PowerShell script in this post will perform the following tasks: Remove all MS Graph Delegated permissions (if any) for the user Perform user consent for an initial set of MS Graph permission Update the…

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Using MS Graph to get both Interactive and non Interactive sign in events log

Microsoft Graph API can be used to get different types of Sign-In event similar to what’s available in the Azure AD portal As of this writing, this functionality is only available in the beta endpoint. By default the following MS Graph request only gets a list of interactive user sign-ins GET https://graph.microsoft.com/beta/auditLogs/signIns To pull the other types of Sign-In logw you will have to use signInEventTypes filter query as followed:…

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Revoke Admin Consent for a delegated permission on a Service Principal with the MS Graph PowerShell SDK

Scenario: You use the Microsoft Graph Explorer tool to test a query. It requires you to consent to a permission so you use your admin account to do this. However, you click the check box to consent for the entire organization… woops! You did not mean to give everyone permissions for “AuditLog.Read.All” so now you need to revoke this permission. The easiest way to revoke consent is to just delete…

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Microsoft Graph PowerShell SDK – Use Client Secret instead of Certificate for Service Principal login

The AAD Graph PowerShell SDK allowed you to use a client secret for the Application only ( Service Principal ) login flow – also known as the client_credentials grant flow. The documentation for the new Microsoft Graph PowerShell SDK does not tell you how to use a client secret but instead, uses the more secure certificate method for the flow: Use app-only authentication with the Microsoft Graph PowerShell SDK |…

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How to use Microsoft Graph SDK for PowerShell to update a registered Device’s Extension Attribute

Below is a sample PowerShell script showing how to update a registered device’s extension attribute. The sample uses extensionAttriubte3. You can easily swap this out to a different one. Refer to the Update Device documentation for more info. Note: The above device update operation requires the signed in user to be in either the Intune Administrator role or Global Administrator role.

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Use the Microsoft.Graph PowerShell SDK to get a list of Devices that do not have BitLocker Recovery Keys

As you may be aware, the AzureAD powershell module is being deprecated at the end of the year along with the AD Graph endpoint. As a result, all customers need to migrate their code to the Microsoft Graph endpoint. This blog post will show you how to use the Microsoft.Graph PowerShell module to get a list of devices that do not have a BitLocker Recovery key in Azure. This would…

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Retry Invoke-RestMethod requests in PowerShell when an error occurs

In this blog post, I will show you how you can trap a specific type of error when making a graph request using the Invoke-RestMethod commandlet and pause and retry the request x number of times before quitting. This is very helpful and is actually recommended to do error handling when making requests to Microsoft Graph. The key here is to set the Url that you’re going to be calling…

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How to use postman to perform a Client Credentials Grant flow with a certificate

This post will demonstrate a couple of things: How to create a signed jwt token (aka Client Assertion) using Powershell. How to use this generated Client Assertion in Postman to get an Access Token Using Client Credentials Grant Flow. To get an Access Token using Client-Credentials Flow, we can either use a Secret or a Certificate. This post will use a self-signed certificate to create the client assertion using both…

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MSAL.Net in PowerShell – Use .pfx file for Client Credentials Flow

This post will show you how to authenticate for the client credentials flow in PowerShell with MSAL.Net using the .pfx file for the certificate authentication instead of loading the certificate from the certificate store. This post is in part based on this: Using PowerShell to Configure a signing certificate for a SAML-based SSO enterprise application Also, special thanks to my team members Bac Hoang and Will Fiddes for assisting with…

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