How to load navigation properties on an IdentityUser with UserManager

Unfortunately, you have to either do it manually or create your own IUserStore<IdentityUser> where you load related data in the FindByEmailAsync method:

public class MyStore : IUserStore<IdentityUser>, // the rest of the interfaces
{
    // ... implement the dozens of methods
    public async Task<IdentityUser> FindByEmailAsync(string normalizedEmail, CancellationToken token)
    {
        return await context.Users
            .Include(x => x.Address)
            .SingleAsync(x => x.Email == normalizedEmail);
    }
}

Of course, implementing the entire store just for this isn’t the best option.

You can also query the store directly, though:

UserManager<IdentityUser> userManager; // DI injected

var user = await userManager.Users
    .Include(x => x.Address)
    .SingleAsync(x => x.NormalizedEmail == email);

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