Walkthrough: MSAL.Net client calling Azure API App with Easy Auth enabled in a B2C tenant

In a previous blog post, I talked about how to use MSAL.Net client application to call an Azure Function App with Easy Auth enabled in a regular tenant. In this post, I’ll describe the process to use an MSAL.Net client application to call a Web API application with Easy Auth enabled in a B2C tenant. I assume you already have an API App created on Azure App Service. If you…

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Walkthrough: Using MSAL.Net to call an Azure Function App with Easy Auth enabled

In this post, I’ll walk through the steps for how to create an application using Microsoft Authentication Library for .Net (MSAL.Net) to call an Azure AD protected Azure Function App using Easy Auth (Azure App Service’ Authentication and Authorization feature). 1. Create an Azure Function with Easy Auth enabled: Assuming you already have an Azure Function App created (refer to https://docs.microsoft.com/en-us/azure/azure-functions/functions-create-function-app-portal if you don’t know how to create one), go…

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Receiving CORS Redirection Error when Signing into App Service using Azure AD

Introduction This post is to help explain what is occurring when the CORS redirection error occurs when trying to navigate back to the login page after logging in. This doesn’t occur when the user is using a private browsing method/mode. The error that is typically received is error : “Failed to load https://login.windows.net/{GUID} (index):{GUID}/oauth2/autho…{GUID}&state=redir%3D%252F.auth%252Fme%253Fv%253D1518029528427: Redirect from ‘https://login.windows.net/…{GUID}&oauth2/autho…{GUID}&state=redir%3D%252F.auth%252Fme%253Fv%253D1518029528427′ to ‘https://login.microsoftonline.com/{GUID}/oaut…{GUID}&state=redir%3D%252F.auth%252Fme%253Fv%253D158029528427′ has been blocked by CORS policy: No ‘Access-Control-Allow-Origin’ header is present…

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Configuring an App Service to get an Access Token for AAD Graph API

Introduction This post should show how to create an app service, configure authentication for the service, and then configure the authentication to get permissions to the AAD Graph API on behalf of the logged-in user. This post is an extension of the Azure App Service Token Store, the link to that can be found here. This is the entire setup scenario from scratch, starting with creating the web app, and…

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