Azure Active Directory: How to get the signed in users groups when there is a groups overage claim in an Access token.

Azure AD has a maximum number of groups that can be returned in an access token when you have selected to include the groups claim for your access token. This post will show you how to reproduce the scenario and then how to get the users groups using Microsoft Graph when a groups overage claim is present in the token instead of actual groups. For a JWT token, Azure has…

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How to use an access token to connect to an Azure SQL Database

In Azure SQL, an access token can be used to authenticate a user or service principal. In this blog post, I will show you what is required for both and give some methods for acquiring the access token based on the scenario to set the access token parameter in the connection object. Requirements: You have an Azure tenant and an Azure SQL database already configured and basic understanding of SSMS…

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Using MSAL in a VB.Net Winforms application

All of our MSAL samples are for either Web, mobile client or console applications in c#. This blog post will show how you can also use MSAL in vb.net in a Winforms desktop application. When creating a winforms application, the thing to remember is that code in your form will run under the UI thread, which, for the most part is ok. However, when MSAL prompts for credentials, it will…

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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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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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Using MSAL.Net to perform the client credentials flow with a certificate instead of a client secret in a .NetCore console appliction.

The sample files for this post can be found in this GitHub repository: https://github.com/RayGHeld/NetCore_ClientCredentials_withCert There is also a Powershell script there to create a certificate for this sample. You can perform the OAuth2 client_credentials grant flow to sign in as an application for your automated type of services. This flow does not require an interactive user to authenticate and should only be run in secure environments. There are 2 methods…

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Configure .Net Application to call Microsoft Graph in a National Cloud Tenant

When authenticating with Azure and making a Microsoft Graph request, for commercial tenants, this is all done with the .com endpoints ( https://login.micorosoftonline.com/… and https://graph.microsoft.com ) and your token audience is for the .com endpoint as well. However, when performing the requests against a National Cloud tenant, you must use the appropriate endpoints. In this article, I will show you how to configure the Microsoft Graph .Net SDK in a…

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How to get and display the user photo with Graph SDK for .Net in a WPF application

Occasionally, we get requests asking how to get the user photo using the Graph SDK. This blog post will show you how to do that in a WPF application but I will also show you a method for getting the photo and saving it to disk with a .Net console application. You can download the sample project here: https://github.com/RayGHeld/GraphClient_GetUserPhoto This project also utilizes the Authentication Provider code in this blog…

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Implement Client Credentials flow for Graph Java Client

In my previous article , I showed you how to modify our great Graph Client for Java sample to add some additional options for things like filtering, setting the max retries for 429 errors, etc.  That sample uses the Oauth2 Device Code flow.  In this article, I will show you how to convert that and use the Client Credentials Flow.  Although, you will not be able to retrieve the same…

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Configuring Options and MaxRetries for Graph Java Client

We have a great Java Graph SDK sample in our tutorial document located here.  Pay special attention to the versions as not having the correct version of the prerequisites will give you difficulty! The sample will run a console application and uses the Oauth2 Device Code flow for authentication.  Once it compiles and runs, you will get a message like this for the device code flow sign in:  “To sign…

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