Do not forget the basic principles of Open ID Connect and OAuth2. When you want to protect an API with OAuth2 and Azure AD, you must pass an access token that will be validated. So if you want to test with SwaggerUI, on accessing the API portion, SwaggerUI must be configured to authenticate, acquire an access token, and pass it to the API. Before we get started, ensure you create…
Read MoreAdding multiple issuer and audience validation in C#
You have an custom developed Web app or Web API using Asp.Net or Asp.Net Core and you want to control which issuers have access to your app. There are a couple ways to do this. Use Multiple Authentication schemes One way to do this and is probably the most recommended way is to perform what is documented here… https://github.com/AzureAD/microsoft-identity-web/wiki/multiple-authentication-schemes In this solution, you’ll want to have different Web App or…
Read MoreAdd Azure AD roles claim support in WebAssembly Authentication
You are developing a WebAssembly authentication app and trying to implement Roles based access control. You are getting a similar error like… The WebAssembly Authentication stack appears to cast the roles claim into a single string. We need this User Factory to modify its behavior so that each role has its own unique value. Create the Custom User Factory First, create a custom User Factory (CustomUserFactory.cs)… Add the roles mapping…
Read MoreHow to resolve “No account or login hint was passed to the AcquireTokenSilent” with a Web App and no persistent token cache
You have implemented Microsoft Authentication Library or Microsoft Identity Web and now you are seeing the following error message: No account or login hint was passed to the AcquireTokenSilent The root cause is because the Token Cache is empty when you are trying to acquire a token silently when account was attempted to be pulled from MSAL. So on Web Applications like Asp.Net or Asp.Net Core, this is generally when…
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