Configure Application Permissions in Azure AD

Question

Background

I have a Web API registered in Azure AD and secured using WindowsAzureActiveDirectoryBearerAuthentication (OAuth2 bearer token). This is a B2B-type scenari

Answer 1

Ben, Application Permissions are declared in the appRoles section of the manifest. Indeed, if you declare an appRole called say 'trusted' in your resource application's (storage broker demo) manifest - it will show up in the Application Permissions drop down there. Then, when you assign that Application Permission to the client app - the access token that the client app will receive using the client credentials OAuth flow will contain a roles claim with value 'trusted'. Other apps in the tenant will also be able to get an access token for your resource app - but they wont have the 'trusted' roles claim. See this blog post for details: http://www.dushyantgill.com/blog/2014/12/10/roles-based-access-control-in-cloud-applications-using-azure-ad/

Finally, the above way to assign an application permission to a client app only works when both the resource and client application are declared in the same directory - if however these apps are multi-tenant and a customer will install these apps separately - a global admin from customer's directory will need to consent to the client app - which will result in the application permission getting assigned to the instance of client app in the customer's tenant. (my blog post covers this too)

Hope this helps.

ps: if you're stuck - feel free to ping me on the contact page of http://www.dushyantgill.com/blog