Program.cs

using server.Data;
using Microsoft.AspNetCore.Identity;
using Microsoft.EntityFrameworkCore;
using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.IdentityModel.Tokens;
using System.Text;
using server.Contracts;
using server.Services;
using System.Text.Json.Serialization;


var builder = WebApplication.CreateBuilder(args);
var connectionString = builder.Configuration.GetConnectionString("TheDailyLensContextConnection") ?? throw new InvalidOperationException("Connection string 'serverIdentityDbContextConnection' not found.");

builder.Services.AddDbContext<TheDailyLensContext>(options => options.UseSqlServer(connectionString));

builder.Services.AddDefaultIdentity<ApplicationUser>(options => {
    options.SignIn.RequireConfirmedAccount = false;
    options.Password.RequireDigit = false;
    options.Password.RequireNonAlphanumeric = false;
    options.Password.RequireUppercase = false;
    options.User.RequireUniqueEmail = true;
    }).AddEntityFrameworkStores<TheDailyLensContext>();


// Add services to the container.
// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckl
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();


builder.Services.AddCors(options =>
    options.AddPolicy("AllowFrontend", builder => builder.WithOrigins("http://localhost:5173").AllowAnyMethod().AllowAnyHeader().AllowCredentials())
);

builder.Services.AddScoped<IJwtTokenService, JwtTokenService>();
builder.Services.AddScoped<IAuthService, AuthService>();
builder.Services.AddScoped<IBlogService, BlogService>();
builder.Services.AddScoped<ICommentService, CommentService>();
builder.Services.AddScoped<ITagService, TagService>();
builder.Services.AddScoped<IUserService, UserService>();
builder.Services.AddScoped<ISMTPService, SMTPService>();
builder.Services.AddHttpContextAccessor();

builder.Services.AddControllers()
    .AddJsonOptions(options => {
        options.JsonSerializerOptions.ReferenceHandler = ReferenceHandler.Preserve;
    }); 


builder.Services.AddAuthentication(options =>
    {
    options.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
    options.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
    options.DefaultScheme = JwtBearerDefaults.AuthenticationScheme;
}).AddJwtBearer(o =>
{
    o.TokenValidationParameters = new TokenValidationParameters
    {
        ValidIssuer = builder.Configuration["Jwt:Issuer"],
        ValidAudience = builder.Configuration["Jwt:Audience"],
        IssuerSigningKey = new SymmetricSecurityKey
        (Encoding.UTF8.GetBytes(builder.Configuration["Jwt:Key"])),
        ValidateIssuer = true,
        ValidateAudience = true,
        ValidateLifetime = true,
        ValidateIssuerSigningKey = true,
        ClockSkew = TimeSpan.Zero
    };
})
.AddGoogle(options =>
    {
        options.ClientId = builder.Configuration["Google:ClientId"];
        options.ClientSecret = builder.Configuration["Google:ClientSecret"];
    });

builder.Services.AddAuthorization();


var app = builder.Build();

app.UseCors("AllowFrontend");

// Configure the HTTP request pipeline.
if (app.Environment.IsDevelopment())
{
    app.UseSwagger();
    app.UseSwaggerUI();
}

app.UseHttpsRedirection();

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

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

app.MapControllers();

app.Run();