Setting up IdentityManager2

The first step is to load the package. Use the already open command line or the terminals in VS Code or Visual Studio:

dotnet add package IdentityManager2

If the package is loaded, open Program.cs and add IdentityManager2 to the service collection:

builder.Services.AddIdentityManager();

Change the service registration of ASP.NET Identity from the following:

builder.Services.AddDefaultIdentity<ApplicationUser>{ …

To this:

builder.Services.AddIdentity<ApplicationUser, IdentityRole>( …

This adds some more relevant services to the service collection.

Also, DefaultTokenProvider needs to be added:

builder.Services.AddIdentity<ApplicationUser, IdentityRole>( … )
    .AddEntityFrameworkStores<ApplicationDbContext>()
    .AddDefaultTokenProviders();

That's it with the services for now.

Then IdentityServer needs to be added to the pipeline...