Program.cs

using Microsoft.AspNetCore.Identity;
using Microsoft.EntityFrameworkCore;
using Models.Context;
using Voting_App.Models;
using Voting_App.Repository;
using Microsoft.AspNetCore.Authentication.Cookies;
var builder = WebApplication.CreateBuilder(args);

// Add services to the container.
builder.Services.AddControllersWithViews();

builder.Services.AddDbContext<Context>(options =>
    options.UseSqlServer(builder.Configuration.GetConnectionString("DefaultConnection")));


builder.Services.AddScoped<IUserRegister , UserRegister>();

builder.Services.AddAuthentication(CookieAuthenticationDefaults.AuthenticationScheme)
    .AddCookie(option => 
    {
        option.LoginPath = "/Account/Login";
        option.LogoutPath = "/Account/Logout";
        option.ExpireTimeSpan = TimeSpan.FromDays(10);
    });

var app = builder.Build();

// Configure the HTTP request pipeline.
if (!app.Environment.IsDevelopment())
{
    app.UseExceptionHandler("/Home/Error");
    // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
    app.UseHsts();
}

app.UseHttpsRedirection();
app.UseStaticFiles();

app.UseRouting();

app.UseAuthentication();
app.UseAuthorization();

app.MapControllerRoute(
    name: "default",
    pattern: "{controller=Plan}/{action=Index}/{id?}");

app.Run();