//قرار دهید containerBuilder.RegisterRequiredServices(); این دو را بعد از
containerBuilder.RegisterHttpClient();
containerBuilder.RegisterIdentityClient();

public virtual HttpClient HttpClient { get; set; } 

async Task CallUsersListApiUsingHttpClient()
{
    HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Get, "https://reqres.in/api/users");
    // Use request.Headers to set jwt token, ...
    // Use request.Content to send body. You can use StringContent, StreamContent, etc.
    HttpResponseMessage response = await HttpClient.SendAsync(request);
    response.EnsureSuccessStatusCode();
    using (StreamReader streamReader = new StreamReader(await response.Content.ReadAsStreamAsync()))
    using (JsonReader jsonReader = new JsonTextReader(streamReader))
    {
        List<UserDto> users = (await JToken.LoadAsync(jsonReader))["data"].ToObject<List<UserDto>>();
    }
}

public class UserDto
{
    [JsonProperty("id")]
    public int Id { get; set; }
    [JsonProperty("first_name")]
    public string FirstName { get; set; }
    [JsonProperty("last_name")]
    public string LastName { get; set; }
    [JsonProperty("avatar")]
    public string Avatar { get; set; }
}

public static class ObsoleteExample
{
    // Mark OrderDetailTotal As Obsolete.
    [ObsoleteAttribute("This property (OrderDetailTotal) is obsolete. Use InvoiceTotal instead.", false)]
    public static decimal OrderDetailTotal
    {
        get  {  return 12m; }
    }

    public static decimal InvoiceTotal
    {
        get  {  return 25m;  }
    }

    // Mark CalculateOrderDetailTotal As Obsolete.
    [ObsoleteAttribute("This method is obsolete. Call CalculateInvoiceTotal instead.", true)]
    public static decimal CalculateOrderDetailTotal()
    {
        return 0m;
    }

    public static decimal CalculateInvoiceTotal()
    {
        return 1m;
    }
}

public class DefaultValueAttributeTest
{
    public DefaultValueAttributeTest()
    {
        // Use the DefaultValue propety of each property to actually set it, via reflection.
        foreach (PropertyDescriptor prop in TypeDescriptor.GetProperties(this))
        {
            var attr = prop.Attributes[typeof(DefaultValueAttribute)] as DefaultValueAttribute;
            if (attr != null)
                prop.SetValue(this, attr.Value);
        }
    }

    [DefaultValue(28)]
    public int Age { get; set; }

    [DefaultValue("Vahid")]
    public string FirstName { get; set; }

    [DefaultValue("Mohammad Taheri")]
    public string LastName { get; set; }

    public override string ToString()
    {
        return $"{this.FirstName} {this.LastName} is {this.Age}.";
    }
}

int? x = null;
int y = x ?? -1;
Console.WriteLine("y now equals -1 because x was null => {0}", y);
int i = DefaultValueOperatorTest.GetNullableInt() ?? default(int);
Console.WriteLine("i equals now 0 because GetNullableInt() returned null => {0}", i);
string s = DefaultValueOperatorTest.GetStringValue();
Console.WriteLine("Returns 'Unspecified' because s is null => {0}", s ?? "Unspecified");

app.UseEndpoints( endpoints =>
{
  // ...
  endpoints.MapHealthChecks( "/healthcheck" );
  // ...
});

<script src="_framework/blazor.server.js" autostart="false"></script>

<script>
Blazor.start({
            reconnectionHandler: {
                onConnectionDown: (options, error) => {
                    var isReloading = false;

                    async function attemptReload() {

                        if (!isReloading) {
                            isReloading = true;
                            var request = new Request({
                                url: '/healthcheck',
                                method: 'GET'
                            });
                            var result = await fetch(request);

                            if (result.status == 200) {
                                document.location.reload();
                            }
                            isReloading = false;
                        }
                    }
                    setInterval(attemptReload, 1500);
                }
            }
        });
</script>

  var ownerId = this.User.Claims.FirstOrDefault(claim => claim.Type == "sub")?.Value;
  var response = await httpClient.GetAsync($"api/v1/orders/GetOrderByIdAsync?id={ownerId}");

    public static IEnumerable<Client> Clients => new List<Client>
    {
        new Client
        {
            ClientId = "oidcClient",
            ClientName = "Example Client Application",
            ClientSecrets = new List<Secret> {new Secret("VQGBtSDEK7tzIzSJyfCYqdHDTQHt7kD2VQ1hHWnY7Dw=".Sha256())}, // change me!
    
            AllowedGrantTypes = GrantTypes.Hybrid,
            RedirectUris = new List<string> {"https://localhost:6001/signin-oidc"},
            PostLogoutRedirectUris = new List<string>
            {
                "https://localhost:6001/signout-callback-oidc"
            },
            AllowedScopes = new List<string>
            {
                IdentityServerConstants.StandardScopes.OpenId,
                IdentityServerConstants.StandardScopes.Profile,
                IdentityServerConstants.StandardScopes.Email,
                IdentityServerConstants.StandardScopes.Address,
                "role",
                "api.ordering.manager"
            },

            RequirePkce=false,
            AllowOfflineAccess = true
        }
    };

   public static IEnumerable<IdentityResource> Resources => new List<IdentityResource>
    {
        new IdentityResources.OpenId(),
        new IdentityResources.Profile(),
        new IdentityResources.Email(),
        new IdentityResources.Address(),
        new IdentityResource
        {
            Name = "role",
            UserClaims = new List<string> {"role"}
        }
    };

public class TokenValidatorService : ITokenValidatorService
{
    private readonly BearerTokensOptionsDto _configuration;

    public TokenValidatorService(IOptionsSnapshot<SiteSettingsDto> configuration)
    {
        if (configuration == null)
        {
            throw new ArgumentNullException(nameof(configuration));
        }

        _configuration = configuration.Value?.BearerTokens ?? throw new ArgumentNullException(nameof(configuration));
    }

    public async Task<bool> IsValidJwtAsync(string token)
    {
        var tokenHandler = new JwtSecurityTokenHandler();
        try
        {
            var claimsPrincipal = tokenHandler.ValidateToken(token, new TokenValidationParameters
            {
                ValidIssuer = _configuration.Issuer, // site that makes the token
                ValidateIssuer = true,
                ValidAudience = _configuration.Audience, // site that consumes the token
                ValidateAudience = true,
                IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(_configuration.Key)),
                ValidateIssuerSigningKey = true, // verify signature to avoid tampering
                ValidateLifetime = true, // validate the expiration
                ClockSkew = TimeSpan.Zero // tolerance for the expiration date
            }, out var securityToken);

            //var (success, _, _) = await IsValidClaimsPrincipalAsync(claimsPrincipal, securityToken);
            //return success;
            return true;
        }
        catch
        {
            return false;
        }
    }
}

<form method="post" asp-action="UploadFiles" asp-controller="Home" enctype="multipart/form-data">
    <input type="file" name="files" webkitdirectory />
    <input type="submit" value="Upload" />
</form>

using System.Collections.Generic;
using System.IO;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;

namespace UploadFolderASPNETCore.Controllers
{
    public class HomeController : Controller
    {
        private readonly IWebHostEnvironment _environment;
        private const int MaxBufferSize = 0x10000;

        public HomeController(IWebHostEnvironment environment)
        {
            _environment = environment;
        }

        public IActionResult Index()
        {
            return View();
        }

        [HttpPost("[action]")]
        public async Task<IActionResult> UploadFiles(IList<IFormFile> files)
        {
            var uploadsRootFolder = Path.Combine(_environment.WebRootPath, "uploads");
            CreateDir(uploadsRootFolder);

            foreach (var file in files)
            {
                var dirPath = Path.GetDirectoryName(file.FileName);
                CreateDir(Path.Combine(uploadsRootFolder, dirPath));

                var filePath = Path.Combine(uploadsRootFolder, file.FileName);
                using (var fileStream = new FileStream(filePath, FileMode.Create,
                                                        FileAccess.Write,
                                                        FileShare.None,
                                                        MaxBufferSize,
                                                        useAsync: true
                                                        ))
                {
                    await file.CopyToAsync(fileStream);
                }
            }

            return RedirectToAction("Index");
        }

        private void CreateDir(string path)
        {
            if (!Directory.Exists(path))
            {
                Directory.CreateDirectory(path);
            }
        }
    }
}