<system.webServer>
    <security>
      <authentication>
        <anonymousAuthentication enabled="true" />
        <windowsAuthentication enabled="true" />
      </authentication>
    </security>
  </system.webServer>

{
  "iisSettings": {
    "windowsAuthentication": true,
    "anonymousAuthentication": true,
    "iisExpress": {
      "applicationUrl": "http://localhost:3381/",
      "sslPort": 0
    }
  }
}

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <system.webServer>
    <handlers>
      <add name="aspNetCore" path="*" verb="*" modules="AspNetCoreModule" resourceType="Unspecified"/>
    </handlers>
    <aspNetCore processPath="%LAUNCHER_PATH%" arguments="%LAUNCHER_ARGS%" 
            stdoutLogEnabled="false" stdoutLogFile=".\logs\stdout" 
            forwardWindowsAuthToken="true"/>
  </system.webServer>
</configuration>

namespace ASPNETCore2WindowsAuthentication
{
    public class Program
    {
        public static void Main(string[] args)
        {
            var host = new WebHostBuilder()
                                     .UseKestrel()
                                     .UseContentRoot(Directory.GetCurrentDirectory())
                                     .UseStartup<Startup>()
                                     .UseHttpSys(options => // Just for local tests without IIS, Or self-hosted scenarios on Windows ...
                                     {
                                         options.Authentication.Schemes =
                                              AuthenticationSchemes.Negotiate | AuthenticationSchemes.NTLM;
                                         options.Authentication.AllowAnonymous = true;
                                         //options.UrlPrefixes.Add("http://+:80/");
                                     })
                                     .Build();
            host.Run();
        }
    }
}

namespace ASPNETCore2WindowsAuthentication
{
    public class Program
    {
        public static void Main(string[] args)
        {
            var host = new WebHostBuilder()
                                     .UseKestrel()
                                     .UseContentRoot(Directory.GetCurrentDirectory())
                                     .UseIISIntegration()
                                     .UseDefaultServiceProvider((context, options) =>
                                     {
                                         options.ValidateScopes = context.HostingEnvironment.IsDevelopment();
                                     })
                                     .UseStartup<Startup>()
                                     .Build();
            host.Run();
        }
    }
}

        public void ConfigureServices(IServiceCollection services)
        {
            services.AddMvc();

            services.Configure<IISOptions>(options =>
            {
                // Sets the HttpContext.User
                // Note: Windows Authentication must also be enabled in IIS for this to work.
                options.AutomaticAuthentication = true;
                options.ForwardClientCertificate = true;
            });
            
            services.AddAuthentication(options =>
            {
                // for both windows and anonymous authentication
                options.DefaultChallengeScheme = IISDefaults.AuthenticationScheme;
            });
        }

        private string authInfo()
        {
            var claims = new StringBuilder();
            if (User.Identity is ClaimsIdentity claimsIdentity)
            {
                claims.Append("Your claims: \n");
                foreach (var claim in claimsIdentity.Claims)
                {
                    claims.Append(claim.Type + ", ");
                    claims.Append(claim.Value + "\n");
                }
            }

            return $"IsAuthenticated: {User.Identity.IsAuthenticated}; Identity.Name: {User.Identity.Name}; WindowsPrincipal: {(User is WindowsPrincipal)}\n{claims}";
        }

namespace ASPNETCore2WindowsAuthentication.Controllers
{
    public class HomeController : Controller
    {
        public IActionResult Index()
        {
            return View();
        }

        [Authorize]
        public IActionResult Windows()
        {
            return Content(authInfo());
        }

        private string authInfo()
        {
            var claims = new StringBuilder();
            if (User.Identity is ClaimsIdentity claimsIdentity)
            {
                claims.Append("Your claims: \n");
                foreach (var claim in claimsIdentity.Claims)
                {
                    claims.Append(claim.Type + ", ");
                    claims.Append(claim.Value + "\n");
                }
            }

            return $"IsAuthenticated: {User.Identity.IsAuthenticated}; Identity.Name: {User.Identity.Name}; WindowsPrincipal: {(User is WindowsPrincipal)}\n{claims}";
        }

        [AllowAnonymous]
        public IActionResult Anonymous()
        {
            return Content(authInfo());
        }

        [Authorize(Roles = "Domain Admins")]
        public IActionResult ForAdmins()
        {
            return Content(authInfo());
        }

        [Authorize(Roles = "Domain Users")]
        public IActionResult ForUsers()
        {
            return Content(authInfo());
        }
    }
}

 dotnet publish

[Authorize(Roles = @"<domain>\<group>")]
//or
[Authorize(Roles = @"<domain>\<group1>,<domain>\<group2>")]

services.AddAuthorization(options =>
{
   options.AddPolicy("RequireWindowsGroupMembership", policy =>
   {
     policy.RequireAuthenticatedUser();
     policy.RequireRole(@"<domain>\<group>"));  
   }
});

 [Authorize(Policy = "RequireWindowsGroupMembership")]

[HttpGet("[action]")]
public IActionResult SomeValue()
{
    if (!User.IsInRole(@"Domain\Group")) return StatusCode(403);
    return Ok("Some Value");
}

    public class ApplicationClaimsTransformation : IClaimsTransformation
    {
        private readonly ILogger<ApplicationClaimsTransformation> _logger;

        public ApplicationClaimsTransformation(ILogger<ApplicationClaimsTransformation> logger)
        {
            _logger = logger;
        }

        public Task<ClaimsPrincipal> TransformAsync(ClaimsPrincipal principal)
        {
            if (!(principal.Identity is ClaimsIdentity identity))
            {
                return Task.FromResult(principal);
            }

            var claims = addExistingUserClaims(identity);
            identity.AddClaims(claims);

            return Task.FromResult(principal);
        }

        private IEnumerable<Claim> addExistingUserClaims(IIdentity identity)
        {
            var claims = new List<Claim>();
            var user = @"VahidPC\Vahid";
            if (identity.Name != user)
            {
                _logger.LogError($"Couldn't find {identity.Name}.");
                return claims;
            }

            claims.Add(new Claim(ClaimTypes.GivenName, user));
            return claims;
        }
    }

            services.AddScoped<IClaimsTransformation, ApplicationClaimsTransformation>();
            services.AddAuthentication(options =>
            {
                // for both windows and anonymous authentication
                options.DefaultChallengeScheme = IISDefaults.AuthenticationScheme;
            });

var userId = User.FindFirstValue(ClaimTypes.NameIdentifier);
var userName = User.FindFirstValue(ClaimTypes.Name);
var userName = User.FindFirstValue(ClaimTypes.GivenName);

<Project Sdk="Microsoft.NET.Sdk.Web">
  <ItemGroup>
    <PackageReference Include="Parbad.AspNetCore" Version="1.1.0" />
    <PackageReference Include="Parbad.Storage.EntityFrameworkCore" Version="1.2.0" />
  </ItemGroup>
</Project>

<Project Sdk="Microsoft.NET.Sdk.Web">
  <ItemGroup>
    <PackageReference Include="Parbad.Storage.EntityFrameworkCore" Version="1.2.0" />
  </ItemGroup>
</Project>

namespace BlazorWasm.WebApi
{
    public class Startup
    {
        // ...

        public void ConfigureServices(IServiceCollection services)
        {
           // ...

            var connectionString = Configuration.GetConnectionString("DefaultConnection");

            services.AddParbad()
                    .ConfigureHttpContext(httpContextBuilder => httpContextBuilder.UseDefaultAspNetCore())
                    .ConfigureGateways(gatewayBuilder =>
                    {
                        gatewayBuilder
                            .AddParbadVirtual()
                            .WithOptions(gatewayOptions => gatewayOptions.GatewayPath = "/MyVirtualGateway");
                    })
                    .ConfigureStorage(storageBuilder =>
                    {
                        storageBuilder.UseEfCore(efCoreOptions =>
                            {
                                var assemblyName = typeof(ApplicationDbContext).Assembly.GetName().Name;
                                efCoreOptions.ConfigureDbContext = db =>
                                    db.UseSqlServer(
                                        connectionString,
                                        sqlServerOptionsAction: sqlOptions => sqlOptions.MigrationsAssembly(assemblyName)
                                    );
                            });
                    })
                    .ConfigureAutoTrackingNumber(opt => opt.MinimumValue = 1)
                    .ConfigureOptions(parbadOptions =>
                    {
                        // parbadOptions.Messages.PaymentSucceed = "YOUR MESSAGE";
                    });

           // ...
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
           // ...

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapControllers();
            });

            if (env.IsDevelopment())
            {
                app.UseParbadVirtualGatewayWhenDeveloping();
            }
            else
            {
                app.UseParbadVirtualGateway();
            }
        }
    }
}

using System;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;

namespace BlazorServer.Entities
{
    public class RoomOrderDetail
    {
        // ...

        [Required]
        public long ParbadTrackingNumber { get; set; }

        public bool IsPaymentSuccessful { get; set; }

        public string Status { get; set; }
    }
}

dotnet tool update --global dotnet-ef --version 5.0.4
dotnet build

dotnet ef migrations --startup-project ../../BlazorWasm/BlazorWasm.WebApi/ add AddParbadFields --context ApplicationDbContext
dotnet ef migrations --startup-project ../../BlazorWasm/BlazorWasm.WebApi/ add AddParbad --context Parbad.Storage.EntityFrameworkCore.Context.ParbadDataContext

dotnet ef --startup-project ../../BlazorWasm/BlazorWasm.WebApi/ database update --context ApplicationDbContext
dotnet ef --startup-project ../../BlazorWasm/BlazorWasm.WebApi/ database update --context Parbad.Storage.EntityFrameworkCore.Context.ParbadDataContext

https://localhost:5001/api/ParbadPayment/PayRoomOrder?orderId=1&amount=1000

https://localhost:5002/payment-result/OrderId/TrackingNumber/Message

https://localhost:5001/api/ParbadPayment/PayRoomOrder?orderId=1&amount=1000

namespace BlazorWasm.WebApi.Controllers
{
    [Route("api/[controller]/[action]")]
    [ApiController]
    public class ParbadPaymentController : Controller
    {
        private readonly IConfiguration _configuration;
        private readonly IOnlinePayment _onlinePayment;
        private readonly IRoomOrderDetailsService _roomOrderService;

        public ParbadPaymentController(
            IConfiguration configuration,
            IOnlinePayment onlinePayment,
            IRoomOrderDetailsService roomOrderService)
        {
            _configuration = configuration;
            _onlinePayment = onlinePayment ?? throw new ArgumentNullException(nameof(onlinePayment));
            _roomOrderService = roomOrderService ?? throw new ArgumentNullException(nameof(roomOrderService));
        }

        [HttpGet]
        public async Task<IActionResult> PayRoomOrder(int orderId, long amount)
        {
            var verifyUrl = Url.Action(
                    action: nameof(ParbadPaymentController.VerifyRoomOrderPayment),
                    controller: nameof(ParbadPaymentController).Replace("Controller", string.Empty),
                    values: null, protocol: Request.Scheme);

            var result = await _onlinePayment.RequestAsync(invoiceBuilder =>
                invoiceBuilder.UseAutoIncrementTrackingNumber()
                            .SetAmount(amount)
                            .SetCallbackUrl(verifyUrl)
                            .UseParbadVirtual()
            );

            if (result.IsSucceed)
            {
                await _roomOrderService.UpdateRoomOrderTrackingNumberAsync(orderId, result.TrackingNumber);

                // It will redirect the client to the gateway.
                return result.GatewayTransporter.TransportToGateway();
            }
            else
            {
                return Redirect(getClientReturnUrl(orderId, result.TrackingNumber, result.Message));
            }
        }

        [HttpGet, HttpPost]
        public async Task<IActionResult> VerifyRoomOrderPayment()
        {
            var invoice = await _onlinePayment.FetchAsync();
            var orderDetail = await _roomOrderService.GetOrderDetailByTrackingNumberAsync(invoice.TrackingNumber);
            if (invoice.Status == PaymentFetchResultStatus.AlreadyProcessed)
            {
                return Redirect(getClientReturnUrl(orderDetail.Id, invoice.TrackingNumber, "The payment is already processed."));
            }

            var verifyResult = await _onlinePayment.VerifyAsync(invoice);
            if (verifyResult.Status == PaymentVerifyResultStatus.Succeed)
            {
                var result = await _roomOrderService.MarkPaymentSuccessfulAsync(verifyResult.TrackingNumber, verifyResult.Amount);
                if (result == null)
                {
                    return Redirect(getClientReturnUrl(orderDetail.Id, verifyResult.TrackingNumber, "Can not mark payment as successful"));
                }
                return Redirect(getClientReturnUrl(orderDetail.Id, verifyResult.TrackingNumber, verifyResult.Message));
            }
            return Redirect(getClientReturnUrl(orderDetail.Id, verifyResult.TrackingNumber, verifyResult.Message));
        }

        private string getClientReturnUrl(int orderId, long trackingNumber, string errorMessage)
        {
            var clientBaseUrl = _configuration.GetValue<string>("Client_URL");
            return new Uri(new Uri(clientBaseUrl),
                $"/payment-result/{orderId}/{trackingNumber}/{WebUtility.UrlEncode(errorMessage)}").ToString();
        }
    }
}

[HttpGet]
public async Task<IActionResult> PayRoomOrder(int orderId, long amount)

namespace BlazorServer.Services
{
    public class RoomOrderDetailsService : IRoomOrderDetailsService
    {
        // ...

        public async Task UpdateRoomOrderTrackingNumberAsync(int roomOrderId, long trackingNumber)
        {
            var order = await _dbContext.RoomOrderDetails.FindAsync(roomOrderId);
            if (order == null)
            {
                return;
            }

            order.ParbadTrackingNumber = trackingNumber;
            _dbContext.RoomOrderDetails.Update(order);
            await _dbContext.SaveChangesAsync();
        }
    }
}

[HttpGet, HttpPost]
public async Task<IActionResult> VerifyRoomOrderPayment()

namespace BlazorServer.Services
{
    public class RoomOrderDetailsService : IRoomOrderDetailsService
    {
        // ...

        public async Task<RoomOrderDetailsDTO> GetOrderDetailByTrackingNumberAsync(long trackingNumber)
        {
            var roomOrderDetailsDTO = await _dbContext.RoomOrderDetails
                                            .Include(u => u.HotelRoom)
                                                .ThenInclude(x => x.HotelRoomImages)
                                            .ProjectTo<RoomOrderDetailsDTO>(_mapperConfiguration)
                                            .FirstOrDefaultAsync(u => u.ParbadTrackingNumber == trackingNumber);

            roomOrderDetailsDTO.HotelRoomDTO.TotalDays =
                roomOrderDetailsDTO.CheckOutDate.Subtract(roomOrderDetailsDTO.CheckInDate).Days;
            return roomOrderDetailsDTO;
        }
    }
}

namespace BlazorServer.Services
{
    public class RoomOrderDetailsService : IRoomOrderDetailsService
    {
        // ...

        public async Task<RoomOrderDetailsDTO> MarkPaymentSuccessfulAsync(long trackingNumber, long amount)
        {
            var order = await _dbContext.RoomOrderDetails.FirstOrDefaultAsync(x => x.ParbadTrackingNumber == trackingNumber);
            if (order?.IsPaymentSuccessful != false || order.TotalCost != amount)
            {
                return null;
            }

            order.IsPaymentSuccessful = true;
            order.Status = BookingStatus.Booked;
            var markPaymentSuccessful = _dbContext.RoomOrderDetails.Update(order);
            await _dbContext.SaveChangesAsync();
            return _mapper.Map<RoomOrderDetailsDTO>(markPaymentSuccessful.Entity);
        }
    }
}

        private string getClientReturnUrl(int orderId, long trackingNumber, string errorMessage)
        {
            var clientBaseUrl = _configuration.GetValue<string>("Client_URL");
            return new Uri(new Uri(clientBaseUrl),
                $"/payment-result/{orderId}/{trackingNumber}/{WebUtility.UrlEncode(errorMessage)}").ToString();
        }

{
   "Client_URL": "https://localhost:5002/"
}

@page "/hotel-room-details/{Id:int}"

@inject IJSRuntime JsRuntime
@inject ILocalStorageService LocalStorage
@inject IClientHotelRoomService HotelRoomService
@inject IClientRoomOrderDetailsService RoomOrderDetailsService
@inject NavigationManager NavigationManager
@inject HttpClient HttpClient

// ...

@code {

    // ...

    private async Task HandleCheckout()
    {
        if (!await HandleValidation())
        {
            return;
        }

        try
        {
            HotelBooking.OrderDetails.ParbadTrackingNumber = -1;
            HotelBooking.OrderDetails.RoomId = HotelBooking.OrderDetails.HotelRoomDTO.Id;
            HotelBooking.OrderDetails.TotalCost = HotelBooking.OrderDetails.HotelRoomDTO.TotalAmount;
            var roomOrderDetailsSaved = await RoomOrderDetailsService.SaveRoomOrderDetailsAsync(HotelBooking.OrderDetails);

            await LocalStorage.SetItemAsync(ConstantKeys.LocalRoomOrderDetails, roomOrderDetailsSaved);

            var paymentUri = new UriBuilderExt(new Uri(HttpClient.BaseAddress, $"/api/ParbadPayment/PayRoomOrder"))
                            .AddParameter("orderId", roomOrderDetailsSaved.Id.ToString())
                            .AddParameter("amount", roomOrderDetailsSaved.TotalCost.ToString())
                            .Uri;
            NavigationManager.NavigateTo(paymentUri.ToString(), forceLoad: true);
        }
        catch (Exception e)
        {
            await JsRuntime.ToastrError(e.Message);
        }
    }

    // ...
}

namespace BlazorWasm.WebApi.Controllers
{
    [ApiController]
    [Route("api/[controller]/[action]")]
    public class RoomOrderController : Controller
    {
        private readonly IRoomOrderDetailsService _roomOrderService;

        public RoomOrderController(IRoomOrderDetailsService roomOrderService)
        {
            _roomOrderService = roomOrderService ?? throw new ArgumentNullException(nameof(roomOrderService));
        }

        [HttpPost]
        public async Task<IActionResult> Create([FromBody] RoomOrderDetailsDTO details)
        {
            var result = await _roomOrderService.CreateAsync(details);
            return Ok(result);
        }

        [HttpGet]
        public async Task<IActionResult> GetOrderDetail(int trackingNumber)
        {
            var result = await _roomOrderService.GetOrderDetailByTrackingNumberAsync(trackingNumber);
            return Ok(result);
        }
    }
}

namespace BlazorServer.Services
{
    public class RoomOrderDetailsService : IRoomOrderDetailsService
    {
        // ...

        public async Task<RoomOrderDetailsDTO> CreateAsync(RoomOrderDetailsDTO details)
        {
            var roomOrder = _mapper.Map<RoomOrderDetail>(details);
            roomOrder.Status = BookingStatus.Pending;
            var result = await _dbContext.RoomOrderDetails.AddAsync(roomOrder);
            await _dbContext.SaveChangesAsync();
            return _mapper.Map<RoomOrderDetailsDTO>(result.Entity);
        }


        public async Task<RoomOrderDetailsDTO> GetOrderDetailByTrackingNumberAsync(long trackingNumber)
        {
            var roomOrderDetailsDTO = await _dbContext.RoomOrderDetails
                                            .Include(u => u.HotelRoom)
                                                .ThenInclude(x => x.HotelRoomImages)
                                            .ProjectTo<RoomOrderDetailsDTO>(_mapperConfiguration)
                                            .FirstOrDefaultAsync(u => u.ParbadTrackingNumber == trackingNumber);

            roomOrderDetailsDTO.HotelRoomDTO.TotalDays =
                roomOrderDetailsDTO.CheckOutDate.Subtract(roomOrderDetailsDTO.CheckInDate).Days;
            return roomOrderDetailsDTO;
        }

       // ...
    }
}

namespace BlazorWasm.Client.Services
{
    public interface IClientRoomOrderDetailsService
    {
        Task<RoomOrderDetailsDTO> SaveRoomOrderDetailsAsync(RoomOrderDetailsDTO details);
        Task<RoomOrderDetailsDTO> GetOrderDetailAsync(long trackingNumber);
    }
}

namespace BlazorWasm.Client.Services
{
    public class ClientRoomOrderDetailsService : IClientRoomOrderDetailsService
    {
        private readonly HttpClient _httpClient;

        public ClientRoomOrderDetailsService(HttpClient httpClient)
        {
            _httpClient = httpClient ?? throw new ArgumentNullException(nameof(httpClient));
        }

        public Task<RoomOrderDetailsDTO> GetOrderDetailAsync(long trackingNumber)
        {
            // How to url-encode query-string parameters properly
            var uri = new UriBuilderExt(new Uri(_httpClient.BaseAddress, $"/api/roomorder/GetOrderDetail"))
                            .AddParameter("trackingNumber", trackingNumber.ToString())
                            .Uri;
            return _httpClient.GetFromJsonAsync<RoomOrderDetailsDTO>(uri);

        }

        public async Task<RoomOrderDetailsDTO> SaveRoomOrderDetailsAsync(RoomOrderDetailsDTO details)
        {
            details.UserId = "unknown user!";
            var response = await _httpClient.PostAsJsonAsync("api/roomorder/create", details);
            var responseContent = await response.Content.ReadAsStringAsync();
            if (response.IsSuccessStatusCode)
            {
                return JsonSerializer.Deserialize<RoomOrderDetailsDTO>(responseContent);
            }
            else
            {
                //var errorModel = JsonSerializer.Deserialize<ErrorModel>(responseContent);
                throw new InvalidOperationException(responseContent);
            }
        }
    }
}

namespace BlazorWasm.Client
{
    public class Program
    {
        public static async Task Main(string[] args)
        {
            // ...
            builder.Services.AddScoped<IClientRoomOrderDetailsService, ClientRoomOrderDetailsService>();

var paymentUri = new UriBuilderExt(new Uri(HttpClient.BaseAddress, $"/api/ParbadPayment/PayRoomOrder"))
    .AddParameter("orderId", roomOrderDetailsSaved.Id.ToString())
    .AddParameter("amount", roomOrderDetailsSaved.TotalCost.ToString())
    .Uri;
NavigationManager.NavigateTo(paymentUri.ToString(), forceLoad: true);

@page "/payment-result/{OrderId:int}/{TrackingNumber:long}/{Message}"
@inject ILocalStorageService LocalStorage
@inject IClientRoomOrderDetailsService RoomOrderDetailService
@inject IJSRuntime JsRuntime
@inject NavigationManager NavigationManager

@if (IsLoading)
{
    <div style="position:fixed;top:50%;left:50%;margin-top:-50px;margin-left:-100px;">
        <img src="images/ajax-loader.gif" />
    </div>
}
else
{
    <div class="container">
        <div class="row mt-4 pt-4">
            <div class="col-10 offset-1 text-center">
            @if(IsPaymentSuccessful)
            {
                <h2 class="text-success">Booking Confirmed!</h2>
                <p>Your room has been booked successfully with order id @OrderId & tracking number @TrackingNumber .</p>
            }
            else
            {
                <h2 class="text-warning">Booking Failed!</h2>
                <p>@Message</p>
            }
            <a class="btn btn-primary" href="hotel-rooms">Back to rooms</a>
            </div>
        </div>
    </div>
}

@code
{
    private bool IsLoading;
    private bool IsPaymentSuccessful;

    [Parameter] public int OrderId { set; get; }
    [Parameter] public long TrackingNumber { set; get; }
    [Parameter] public string Message { set; get; }

    protected override async Task OnInitializedAsync()
    {
        IsLoading = true;
        try
        {
            var finalOrderDetail = await RoomOrderDetailService.GetOrderDetailAsync(TrackingNumber);
            var localOrderDetail = await LocalStorage.GetItemAsync<RoomOrderDetailsDTO>(ConstantKeys.LocalRoomOrderDetails);
            if(finalOrderDetail is not null &&
                finalOrderDetail.IsPaymentSuccessful &&
                finalOrderDetail.Status == BookingStatus.Booked &&
                localOrderDetail is not null &&
                localOrderDetail.TotalCost == finalOrderDetail.TotalCost)
            {
                IsPaymentSuccessful = true;
                await LocalStorage.RemoveItemAsync(ConstantKeys.LocalRoomOrderDetails);
                await LocalStorage.RemoveItemAsync(ConstantKeys.LocalInitialBooking);
            }
            else
            {
                IsPaymentSuccessful = false;
            }
        }
        catch(Exception ex)
        {
            await JsRuntime.ToastrError(ex.Message);
        }
        finally
        {
            IsLoading = false;
        }
    }
}

@page "/payment-result/{OrderId:int}/{TrackingNumber:long}/{Message}"

    public class HotelRoomDTO
    {
        public bool IsBooked { get; set; }

        // ...
    }

namespace BlazorServer.Services
{
    public class HotelRoomService : IHotelRoomService
    {
       // ...

        public async Task<List<HotelRoomDTO>> GetAllHotelRoomsAsync(DateTime? checkInDateStr, DateTime? checkOutDatestr)
        {
            var hotelRooms = await _dbContext.HotelRooms
                        .Include(x => x.HotelRoomImages)
                        .Include(x => x.RoomOrderDetails)
                        .ProjectTo<HotelRoomDTO>(_mapperConfiguration)
                        .ToListAsync();

            foreach (var hotelRoom in hotelRooms)
            {
                hotelRoom.IsBooked = isRoomBooked(hotelRoom, checkInDateStr, checkOutDatestr);
            }

            return hotelRooms;
        }

        public async Task<HotelRoomDTO> GetHotelRoomAsync(int roomId, DateTime? checkInDate, DateTime? checkOutDate)
        {
            var hotelRoom = await _dbContext.HotelRooms
                            .Include(x => x.HotelRoomImages)
                            .Include(x => x.RoomOrderDetails)
                            .ProjectTo<HotelRoomDTO>(_mapperConfiguration)
                            .FirstOrDefaultAsync(x => x.Id == roomId);
            hotelRoom.IsBooked = isRoomBooked(hotelRoom, checkInDate, checkOutDate);
            return hotelRoom;
        }

        private bool isRoomBooked(HotelRoomDTO hotelRoom, DateTime? checkInDate, DateTime? checkOutDate)
        {
            if (checkInDate == null || checkOutDate == null)
            {
                return false;
            }

            return hotelRoom.RoomOrderDetails.Any(x => x.IsPaymentSuccessful &&
                        //check if checkin date that user wants does not fall in between any dates for room that is booked
                        ((checkInDate < x.CheckOutDate && checkInDate.Value.Date >= x.CheckInDate)
                        //check if checkout date that user wants does not fall in between any dates for room that is booked
                        || (checkOutDate.Value.Date > x.CheckInDate.Date && checkInDate.Value.Date <= x.CheckInDate.Date))
                    );
        }
    }
}

@if (room.IsBooked)
{
    <button disabled class="btn btn-secondary btn-block">Sold Out</button>
}
else
{
    <a href="@($"hotel-room-details/{room.Id}")" class="btn btn-success btn-block">Book</a>
}

@if (HotelBooking.OrderDetails.HotelRoomDTO.IsBooked)
{
    <button disabled class="btn btn-secondary btn-block">Sold Out</button>
}
else
{
    <button type="submit" class="btn btn-success form-control">Checkout Now</button>
}

 <link rel="pingback" href="pingback server">

        private Uri findPingbackServiceUri()
        {
            var request = (HttpWebRequest)WebRequest.Create(_targetUri);
            request.UserAgent = UserAgent;
            request.Timeout = Timeout;
            request.ReadWriteTimeout = Timeout;
            request.Method = WebRequestMethods.Http.Get;
            request.AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate;
            using (var response = request.GetResponse() as HttpWebResponse)
            {
                if (response == null) return null;

                var url = extractPingbackServiceUriFormHeaders(response);
                if (url != null)
                    return url;

                if (!isResponseHtml(response))
                    return null;

                using (var reader = new StreamReader(response.GetResponseStream()))
                {
                    return extractPingbackServiceUriFormPage(reader.ReadToEnd());
                }
            }
        }

        private static Uri extractPingbackServiceUriFormHeaders(WebResponse response)
        {
            var pingUrl = response.Headers.AllKeys.FirstOrDefault(header =>
                                header.Equals("x-pingback", StringComparison.OrdinalIgnoreCase) ||
                                header.Equals("pingback", StringComparison.OrdinalIgnoreCase));

            return getValidAbsoluteUri(pingUrl);
        }

        private static Uri extractPingbackServiceUriFormPage(string content)
        {
            if (string.IsNullOrWhiteSpace(content)) return null;
            var regex = new Regex(@"(?s)<link\srel=""pingback""\shref=""(.+?)""", RegexOptions.IgnoreCase);
            var match = regex.Match(content);
            return (!match.Success || match.Groups.Count < 2) ? null : getValidAbsoluteUri(match.Groups[1].Value);
        }

        private static Uri getValidAbsoluteUri(string url)
        {
            Uri absoluteUri;
            return string.IsNullOrWhiteSpace(url) || !Uri.TryCreate(url, UriKind.Absolute, out absoluteUri) ? null : absoluteUri;
        }

        private static bool isResponseHtml(WebResponse response)
        {
            var contentTypeKey = response.Headers.AllKeys.FirstOrDefault(header =>
                                        header.Equals("content-type", StringComparison.OrdinalIgnoreCase));
            return !string.IsNullOrWhiteSpace(contentTypeKey) &&
                    response.Headers[contentTypeKey].StartsWith("text/html", StringComparison.OrdinalIgnoreCase);
        }

        public void Send()
        {
            var pingUrl = findPingbackServiceUri();
            if (pingUrl == null)
                throw new NotSupportedException(string.Format("{0} doesn't support pingback.", _targetUri.Host));

            sendPing(pingUrl);
        }

        private void sendPing(Uri pingUrl)
        {
            var request = (HttpWebRequest)WebRequest.Create(pingUrl);
            request.UserAgent = UserAgent;
            request.Timeout = Timeout;
            request.ReadWriteTimeout = Timeout;
            request.Method = WebRequestMethods.Http.Post;
            request.ContentType = "text/xml";
            request.ProtocolVersion = HttpVersion.Version11;
            makeXmlRpcRequest(request);
            using (var response = (HttpWebResponse)request.GetResponse())
            {
                response.Close();
            }
        }

        private void makeXmlRpcRequest(WebRequest request)
        {
            var stream = request.GetRequestStream();
            using (var writer = new XmlTextWriter(stream, Encoding.ASCII))
            {
                writer.WriteStartDocument(true);
                writer.WriteStartElement("methodCall");
                writer.WriteElementString("methodName", "pingback.ping");
                writer.WriteStartElement("params");

                writer.WriteStartElement("param");
                writer.WriteStartElement("value");
                writer.WriteElementString("string", Uri.EscapeUriString(_sourceUri.ToString()));
                writer.WriteEndElement();
                writer.WriteEndElement();

                writer.WriteStartElement("param");
                writer.WriteStartElement("value");
                writer.WriteElementString("string", Uri.EscapeUriString(_targetUri.ToString()));
                writer.WriteEndElement();
                writer.WriteEndElement();

                writer.WriteEndElement();
                writer.WriteEndElement();
            }
        }

var doc = new HtmlWeb().Load(url);
var linkTags = doc.DocumentNode.Descendants("link");
var linkedPages = doc.DocumentNode.Descendants("a")
                                  .Select(a => a.GetAttributeValue("href", null))
                                  .Where(u => !String.IsNullOrEmpty(u));

using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
using System;
using System.Collections.Generic;
using System.Linq;

namespace FindDuplicateServices.Utils
{
    public static class DuplicateServicesFinder
    {
        private static List<(Type ServiceType, int RegistrationTimes)> _duplicateServices;

        public static IHostBuilder CountDuplicateServices(this IHostBuilder hostBuilder)
        {
            hostBuilder.ConfigureServices(services =>
            {
                _duplicateServices = services.Where(
                        serviceDescriptor => !serviceDescriptor.ServiceType.Assembly.FullName.Contains("Microsoft"))
                                        .GroupBy(serviceDescriptor => serviceDescriptor.ServiceType)
                                        .Where(g => g.Count() > 1)
                                        .Select(g => (g.Key, g.Count()))
                                        .ToList();
            });
            return hostBuilder;
        }

        public static IHost ReportDuplicateServices(this IHost host)
        {
            var logger = host.Services.GetRequiredService<ILogger<Program>>();
            _duplicateServices.ForEach(item =>
                logger.LogWarning($"Service Type: `{item.ServiceType}` -> Registration times: {item.RegistrationTimes}"));
            return host;
        }

        public static void RemoveService(this IServiceCollection services, Type serviceType)
        {
            var serviceDescriptor = services.FirstOrDefault(descriptor => descriptor.ServiceType == serviceType);
            if (serviceDescriptor != null)
            {
                services.Remove(serviceDescriptor);
            }
        }
    }
}

using FindDuplicateServices.Utils;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Hosting;

namespace FindDuplicateServices
{
    public class Program
    {
        public static void Main(string[] args)
        {
            CreateHostBuilder(args).Build().ReportDuplicateServices().Run();
        }

        public static IHostBuilder CreateHostBuilder(string[] args) =>
            Host.CreateDefaultBuilder(args)
                .ConfigureWebHostDefaults(webBuilder =>
                {
                    webBuilder.UseStartup<Startup>();
                })
                .CountDuplicateServices();
    }
}

namespace FindDuplicateServices
{
    public class Startup
    {
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddControllers();
            services.AddScoped<IWeatherForecastService, WeatherForecastService>();
            services.AddScoped<IWeatherForecastService, WeatherForecastService>();
        }

<Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>net7.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="BenchmarkDotNet" Version="0.13.4" />
  </ItemGroup>
</Project>

using BenchmarkDotNet.Attributes;
using BenchmarkDotNet.Jobs;

namespace NET7Loops;

[SimpleJob(RuntimeMoniker.Net60)]
[SimpleJob(RuntimeMoniker.Net70)]
[MemoryDiagnoser(false)]
public class Benchmarks
{
    private int[] ItemsArray;
    private List<int> ItemsList;

    [GlobalSetup]
    public void Setup()
    {
        var random = new Random(420);
        var randomItems = Enumerable.Range(0, 1000).Select(_ => random.Next());
        ItemsArray = randomItems.ToArray();
        ItemsList = randomItems.ToList();
    }

    [Benchmark]
    public void For_Array()
    {
        for (var i = 0; i < ItemsArray.Length; i++)
        {
            var item = ItemsArray[i];
        }
    }

    [Benchmark]
    public void For_List()
    {
        for (var i = 0; i < ItemsList.Count; i++)
        {
            var item = ItemsList[i];
        }
    }

    [Benchmark]
    public void ForEach_Array()
    {
        foreach (var item in ItemsArray)
        {
        }
    }

    [Benchmark]
    public void ForEach_List()
    {
        foreach (var item in ItemsList)
        {
        }
    }
}

using BenchmarkDotNet.Running;
using NET7Loops;

BenchmarkRunner.Run<Benchmarks>();

// Decompiled with JetBrains decompiler
// Type: NET7Loops.Benchmarks
// Assembly: NET7Loops, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
// MVID: E398BEE7-8123-4C55-AF9A-F7D83DDA73F1
// Assembly location: C:\Prog\1401\Net7Tests\NET7Loops\bin\Debug\net7.0\NET7Loops.dll
// Compiler-generated code is shown

using BenchmarkDotNet.Attributes;
using BenchmarkDotNet.Jobs;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.CompilerServices;

namespace NET7Loops
{
  [NullableContext(1)]
  [Nullable(0)]
  [SimpleJob(RuntimeMoniker.Net60, -1, -1, -1, -1, null, false)]
  [SimpleJob(RuntimeMoniker.Net70, -1, -1, -1, -1, null, false)]
  [MemoryDiagnoser(false)]
  public class Benchmarks
  {
    private int[] ItemsArray;
    private List<int> ItemsList;

    [GlobalSetup]
    public void Setup()
    {
      Benchmarks.<>c__DisplayClass2_0 cDisplayClass20 = new Benchmarks.<>c__DisplayClass2_0();
      cDisplayClass20.random = new Random(420);
      IEnumerable<int> source = Enumerable.Range(0, 1000).Select<int, int>(new Func<int, int>((object) cDisplayClass20, __methodptr(<Setup>b__0)));
      this.ItemsArray = source.ToArray<int>();
      this.ItemsList = source.ToList<int>();
    }

    [Benchmark(23, "C:\\Prog\\1401\\Net7Tests\\NET7Loops\\Benchmarks.cs")]
    public void For_Array()
    {
      for (int index = 0; index < this.ItemsArray.Length; ++index)
      {
        int items = this.ItemsArray[index];
      }
    }

    [Benchmark(32, "C:\\Prog\\1401\\Net7Tests\\NET7Loops\\Benchmarks.cs")]
    public void For_List()
    {
      for (int index = 0; index < this.ItemsList.Count; ++index)
      {
        int items = this.ItemsList[index];
      }
    }

    [Benchmark(41, "C:\\Prog\\1401\\Net7Tests\\NET7Loops\\Benchmarks.cs")]
    public void ForEach_Array()
    {
      int[] itemsArray = this.ItemsArray;
      for (int index = 0; index < itemsArray.Length; ++index)
      {
        int num = itemsArray[index];
      }
    }

    [Benchmark(49, "C:\\Prog\\1401\\Net7Tests\\NET7Loops\\Benchmarks.cs")]
    public void ForEach_List()
    {
      List<int>.Enumerator enumerator = this.ItemsList.GetEnumerator();
      try
      {
        while (enumerator.MoveNext())
        {
          int current = enumerator.Current;
        }
      }
      finally
      {
        enumerator.Dispose();
      }
    }

    public Benchmarks()
    {
      base..ctor();
    }

    [CompilerGenerated]
    private sealed class <>c__DisplayClass2_0
    {
      [Nullable(0)]
      public Random random;

      public <>c__DisplayClass2_0()
      {
        base..ctor();
      }

      internal int <Setup>b__0(int _)
      {
        return this.random.Next();
      }
    }
  }
}

for (int index = 0; index < this.ItemsArray.Length; ++index)
{
   int items = this.ItemsArray[index];
}

      List<int>.Enumerator enumerator = this.ItemsList.GetEnumerator();
      try
      {
        while (enumerator.MoveNext())
        {
          int current = enumerator.Current;
        }
      }
      finally
      {
        enumerator.Dispose();
      }