Program.cs
Singleton: This creates only one instance of a class during the application's lifecycle. Every time you request this class, you get the same instance. Use it for classes that are expensive to create or maintain a common state throughout the application, like a database connection.
Transient: Every time you request a transient class, a new instance is created. This is useful for lightweight, stateless services where each operation requires a clean and independent instance.
Scoped: Scoped instances are created once per client request. In a web application, for example, a new instance is created for each HTTP request but is shared across that request. Use it for services that need to maintain state within a request but not beyond it, like shopping cart in an e-commerce site.
var builder = WebApplication.CreateBuilder(args);
var connectionstring = builder.Configuration.GetConnectionString("DefaultSQLConnection");
builder.Services.AddDbContext<ApplicationDbContext>(options =>
options.UseSqlServer(connectionstring));
builder.Services.AddIdentity<ApplicationUser, IdentityRole>(options=>
{
options.Password.RequireDigit = true;
options.Password.RequiredLength = 8;
options.Password.RequireNonAlphanumeric = false;
options.Password.RequireUppercase = true;
options.Password.RequireLowercase = true;
options.User.RequireUniqueEmail = true;
})
.AddEntityFrameworkStores<ApplicationDbContext>();
// Add services to the container.
builder.Services.AddControllersWithViews();
builder.Services.AddAuthentication(CookieAuthenticationDefaults.AuthenticationScheme).AddCookie(options => {
// Path to the login page
options.LoginPath = "/Account/Login";
// Path to the access denied page
options.AccessDeniedPath = "/Account/AccessDenied";
});
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.UseRouting();
app.UseAuthentication();
app.UseAuthorization();
app.MapStaticAssets();
app.MapControllerRoute(
name: "default",
pattern: "{controller=Home}/{action=Index}/{id?}")
.WithStaticAssets();
app.Run();
