MyDarling/Program.cs

using Microsoft.EntityFrameworkCore;
using MyDarling.Models;
using MyDarling.Services;
using Microsoft.AspNetCore.Identity;

var builder = WebApplication.CreateBuilder(args);

builder.Services.AddDbContext<DataContext>(opts =>
{
	opts.UseSqlite(builder.Configuration["ConnectionStrings:MyDarlingDb"]);
	opts.EnableSensitiveDataLogging(true);
});

builder.Services.AddDbContext<IdentityContext>(opts => 
{
	opts.UseSqlite(builder.Configuration["ConnectionStrings:IdentityDb"]);
});

builder.Services.AddIdentity<IdentityUser, IdentityRole>()
	.AddEntityFrameworkStores<IdentityContext>();
	
builder.Services.Configure<IdentityOptions>( opts => 
{
	opts.Password.RequiredLength = 6;
	opts.Password.RequireNonAlphanumeric = false;
	opts.User.AllowedUserNameCharacters = "abcdefghijklmnopqrstuvwxyz";
});

builder.Services.AddTransient<IImageResizer, ImageResizer>();
builder.Services.AddControllersWithViews();
builder.Services.AddRazorPages();

var app = builder.Build();

app.UseStaticFiles();
app.UseStatusCodePages();
app.MapControllers();
app.MapDefaultControllerRoute();
app.MapRazorPages();    

app.UseAuthentication();
app.UseAuthorization();
IdentitySeedData.CreateAdminAccount(app.Services, app.Configuration);

app.Run();