ASP.NET Core Web Application different landing page based on role

Question

I have an ASP.NET Core web application, and it is configured to authenticate with Microsoft identity platform. Users are assigned different role. My question is based on the user's role, how do I configure the application to redirect user to different landing page after they are authenticate.

• Admin users will land on ./admin/index.
• Non-admin will land on ./index

Answer 1

You need to configure Authentication middleware in the Startup.cs

// Inside ConfigureServices method
services.AddAuthentication()
    .AddMicrosoftIdentityWebApp(Configuration.GetSection("AzureAd"));

services.AddAuthorization(options =>
{
    options.AddPolicy("AdminOnly", policy =>
        policy.RequireRole("Admin"));
});

and next in the authentication callback, redirect to where you prefer (e.g. OnAuthenticated or OnTokenValidated)

// Inside the authentication callback method
var user = context.Principal;
if (user.IsInRole("Admin"))
{
    context.Response.Redirect("/admin/index");
}
else
{
    context.Response.Redirect("/index");
}