Program.cs

using eLearning_System.DTO;
using eLearning_System.Interfaces;
using eLearning_System.Services;
using eLearning_System.Services.Admin;
using eLearning_System.Settings;
using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.Extensions.Options;
using Microsoft.IdentityModel.Tokens;
using System.Text;

var builder = WebApplication.CreateBuilder(args);
var mongoDbSettings = builder.Configuration.GetSection(nameof(MongoDbConfig)).Get<MongoDbConfig>();
// Add services to the container.
builder.Services.AddIdentity<ApplicationUser, ApplicationRole>().AddMongoDbStores<ApplicationUser, ApplicationRole, Guid>
(
    mongoDbSettings.ConnectionString, mongoDbSettings.Name
);
builder.Services.Configure<MongoDbConfig>(builder.Configuration.GetSection(nameof(MongoDbConfig)));
builder.Services.AddSingleton<IDatabaseSettings>(x => x.GetRequiredService<IOptions<MongoDbConfig>>().Value);


builder.Services.AddScoped<ITokenService, TokenService>();
builder.Services.AddScoped<ICategoryService, CategoryService>();
//builder.Services.AddSingleton<CategoryService>();
builder.Services.AddCors();
builder.Services.AddControllersWithViews();
builder.Services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme).AddJwtBearer(options => {
    options.TokenValidationParameters = new Microsoft.IdentityModel.Tokens.TokenValidationParameters()
    {
        ValidateIssuerSigningKey = true,
        IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(builder.Configuration["JWT:Secret"])),
        ValidateIssuer = false,
        ValidateAudience = false,
    };
});
var app = builder.Build();

// Configure the HTTP request pipeline.
if (!app.Environment.IsDevelopment())
{
}

app.UseStaticFiles();
app.UseRouting();

app.UseCors(policy => {
    policy.AllowAnyHeader().AllowAnyMethod().WithOrigins(new string[] { "http://localhost:65121", "http://localhost:65122" });
});
app.UseAuthentication();
app.UseAuthorization();

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

app.MapFallbackToFile("index.html"); ;

app.Run();