In HttpclientAdd, set same urlbase for all Interface from a assembly

See also questions close to this topic

• C# - Adding condition to func results in stack overflow exception

  I have a func as part of specification class which sorts the given iqueryable

  Func<IQueryable<T>, IOrderedQueryable<T>>? Sort { get; set; }
  

  When i add more than one condition to the func like below , it results in stack overflow exception.

  spec.OrderBy(sc => sc.Case.EndTime).OrderBy(sc => sc.Case.StartTime);
  

  The OrderBy method is implemented like this

  public ISpecification<T> OrderBy<TProperty>(Expression<Func<T, TProperty>> property)
      {
          _ = Sort == null ? Sort = items => items.OrderBy(property) : Sort = items => Sort(items).ThenBy(property);
          return this;
      }
  

  Chaining or using separate lines doesn't make a difference.

  This problem gets resolved if I assign a new instance of the specification and set it's func, but i don't want to be assigning to a new instance everytime. Please suggest what am i missing here and how to reuse the same instance (if possible).
• How to projection fields for a dictionary (C#, MongdoDB)

  I am trying my luck here, I have a model which is like the following

  public class RowData : BaseBsonDefinition
  {
  .
    [BsonExtraElements]
    [BsonDictionaryOptions(DictionaryRepresentation.ArrayOfDocuments)]
    public Dictionary<string, object> Rows { get; set; } = new(StringComparer.OrdinalIgnoreCase);
  .
  }
  
  

  In result, the schema in the MongoDB looks like

  {
  "_id": {
      "$binary": {
        "base64": "HiuI1sgyT0OZmcgGUit2dw==",
        "subType": "03"
      }
    },
    "c1": "AAA",
    "c8": "Fully Vac",
    "c10": "",
  }
  

  Those c1, c8 and c10 fields are keys from the dictionary, my question is how to dynamic project those fields?

  I tried

  Builders<RowData>.Projection.Exclude(p => "c1")
  

  It seems the MongoDB driver can not handle a value directly.

  Anyone could point me in the correct direction?

  Thanks,
• How do I add new DataSource to an already Databinded CheckBoxList

  i'm building a web form that show Database's item(Tables, Rows, FK,...)

  I have a CheckBoxList of Tables (chkListTable) which will show a new CheckBoxList of Rows (chkListRow) everytime I SelectedIndexChanged from chkListTable. The problem is i can show the items from chkListTable with 1 selected item. But i don't know how to show chkListRow if multiple item from chkListTable are selected.

  Here are my codes:

  aspx:

  <div>
               <asp:Label ID="Label2" runat="server" Text="Table: "></asp:Label>
               <asp:CheckBoxList ID="chkListTable" runat="server"
                   DataTextField="name"
                   DataValueFeild="name"
                   AutoPostBack="true"
                   OnSelectedIndexChanged="chkListTable_SelectedIndexChanged">
               </asp:CheckBoxList>
          </div>
          <div>
               <asp:CheckBoxList ID="chkListRow" runat="server"
               DataTextField="COLUMN_NAME"
               DataValueField="COLUMN_NAME"
               RepeatDirection="Horizontal">
               </asp:CheckBoxList>
          </div>
  

  aspx.cs:

  protected void chkListTable_SelectedIndexChanged(object sender, EventArgs e)
      {
          tableName.Clear();
          
          foreach (ListItem item in chkListTable.Items)
          {
              if(item.Selected)
              {
                  tableName.Add(item.Text.Trim());
              }    
          }
  
          for(int i = 0; i < tableName.Count; i++)
          {
              String query = "USE " + dbname +
                  " SELECT * FROM information_schema.columns" +
                  " WHERE table_name = '" + tableName[i] + "'" +
                  " AND COLUMN_NAME != 'rowguid'";
              chkListRow.DataSource = Program.ExecSqlDataReader(query);
              chkListRow.DataBind(); 
              Program.conn.Close();
          }
      }
  

  Program.cs:

  public static bool Connect()
      {
          if (Program.conn != null && Program.conn.State == ConnectionState.Open)
              Program.conn.Close();
          try
          {
              Program.conn.ConnectionString = Program.constr;
  
              Program.conn.Open();
  
              return true;
          }
  
          catch (Exception e)
          {
              return false;
          }
      }
  
      public static SqlDataReader ExecSqlDataReader(String query)
      {
          SqlDataReader myreader;
          SqlCommand sqlcmd = new SqlCommand(query, Program.conn);
          sqlcmd.CommandType = CommandType.Text;
          if (Program.conn.State == ConnectionState.Closed) Program.conn.Open();
          try
          {
              myreader = sqlcmd.ExecuteReader();
              return myreader;
              myreader.Close();
          }
          catch (SqlException ex)
          {
              Program.conn.Close();
              return null;
          }
      }
  

  I want my display to be like this:

  [x]Table1 [x]Table2 [ ]Table3
  [ ]Row1(Table1) [ ]Row2(Table1) [ ]Row3(Table1)
  [ ]Row1(Table2) [ ]Row2(Table2)
  
• how to migrate global.asax event 'Application_Start' to program.cs on net.6?

  I try to migrate an old projet with a console app and a webservice ( both on .net framework 4.6) to a .net 6 console app (I want to suppress the ws and just have a service). On the old webservice I have a global.asax with a usefull event 'Application_Start' : it let me initialise a static class used for data access (code is in vb.net but I move to c#)

    Sub Application_Start(sender As Object, e As EventArgs)
          OldDLL.Initialisation(BmyEnum.Mode, My.Settings.mySCHEMAName)
      End Sub
  

  I find various topics as (Migrate Global.asax to Startup.cs) on how to migrate from global.asax to Startup.cs but there is no more Startup.cs on my project generate by visualstudio2022, just a program.cs. Googleling a little bit I read that program.cs could replace startup.cs, using middleware. But I'm very new and it's a lot confusing. How I could in a simple way call OldDLL.Initialisation on program.cs ? Could be possible ( and how?) to embed my OldDll static on a service and inject it ? Thank you for reading, thank you for your suggestions.
• Pass context with Hilt from ViewModel to data source

  I'm trying to use Hilt to pass context along to my data source class, below:

  public class PostDataSource extends PageKeyedDataSource<Integer, Post> {
  
      // we will start from the first page which is 1
      public static final int PAGE_SIZE = 25;
  
      // we will start from the first page which is 1
      private static final int FIRST_PAGE = 1;
  
      // this will be called once to load the initial data
      @Override
      public void loadInitial(@NonNull LoadInitialParams<Integer> params, @NonNull final LoadInitialCallback<Integer, Post> callback) {
          // I NEED TO CALL CONTEXT HERE
  
      }
  }
  

  PostDataSource has a data source factory:

  public class PostDataSourceFactory extends DataSource.Factory {
  
      //creating the mutable live data
      private MutableLiveData<PageKeyedDataSource<Integer, Post>> itemLiveDataSource = new MutableLiveData<>();
  
      @Override
      public DataSource<Integer, Post> create() {
          //getting our data source object
          PostDataSource postDataSource = new PostDataSource();
  
          //posting the datasource to get the values
          itemLiveDataSource.postValue(postDataSource);
  
          //returning the datasource
          return postDataSource;
      }
  
  
      //getter for itemlivedatasource
      public MutableLiveData<PageKeyedDataSource<Integer, Post>> getItemLiveDataSource() {
          return itemLiveDataSource;
      }
  }
  

  And finally, here is the ViewModel class. This ViewModel is called from my fragment:

  public class PostViewModel extends ViewModel {
  
      //creating livedata for PagedList  and PagedKeyedDataSource
      public LiveData<PagedList<Post>> itemPagedList;
      LiveData<PageKeyedDataSource<Integer, Post>> liveDataSource;
  
      //constructor
      public PostViewModel() {
          //getting our data source factory
          PostDataSourceFactory postDataSourceFactory = new PostDataSourceFactory();
  
          //getting the live data source from data source factory
          liveDataSource = postDataSourceFactory.getItemLiveDataSource();
  
          //Getting PagedList config
          PagedList.Config pagedListConfig =
                  (new PagedList.Config.Builder())
                          .setEnablePlaceholders(false)
                          .setPageSize(PostDataSource.PAGE_SIZE).build();
  
          //Building the paged list
          itemPagedList = (new LivePagedListBuilder(postDataSourceFactory, pagedListConfig))
                  .build();
      }
  }
  

  I don't understand how I would get context in PostDataSource using Hilt's dependency injection.

  I've tried doing something like this, but not really sure how to proceed:

  public class PostDataSource extends PageKeyedDataSource<Integer, Post> {
  
      private Context context;
  
      @Inject
      PostDataSource(@ActivityContext Context context) {
          this.context = context;
      }
  
      ...
  
  }
  
• cdi bean lack of value when accessed through public field

  I have a configuration class, which I inject into another class.

  Configuration class looks as follows:

  @RequestScoped
  public class Configuration {
  
      @ConfigProperty(name = "VALUE")
      public String value;
  
      public String getValue() {
          return value;
      }
  }
  

  This configuration is injected into the following place:

  @ApplicationScoped
  public class EndpointImpl implements Endpoint {
  
      private Configuration configuration;
  
      @Inject
      public EndpointImpl(Configuration configuration) {
          this.configuration = configuration;
          System.out.println("configuration.value=" + configuration.value);
          System.out.println("configuration.getValue()=" + configuration.getValue());
          System.out.println("configuration.value=" + configuration.value);
      }
  

  Logs printed after going through constructor:

  configuration.value=null

  configuration.getValue()=someValue

  configuration.value=null

  I added postConstructor with the below similar code:

  @PostConstruct
  public void postConstruct(){
      System.out.println("configuration.value="+configuration.value);
      System.out.println("configuration.getValue()="+configuration.getValue());
      System.out.println("configuration.value="+configuration.value);
  }
  

  and the result is the same.

  Everything works fine as long as the value is retrieved through the getter method. When I try to retrieve it through the public field it returns null. I thought that, when CDI completes the process of building the bean, the fields inside the class will be set to appropriate values.

  Why does it behave in such a way?
• Problem with creating console application in C# for merging two csv files for new result csv file

  I want to merge two existing csv files and return these data in new csv file regarding to the below example:

  First file:
  a,b,c,d
  3,4,5,8
  7,0,9,7
  2,3,4,13
  1,7,55,4
  Second file:
  a,b,d,e
  3,4,10,10
  7,0,10,12
  2,3,13,20
  89,87,3,4
  Result file:
  a,b,c,d,e
  3,4,5,10,10
  7,0,9,10,12
  2,3,4,13,20
  1,7,55,4,
  89,87,,3,4
  

  First file has 4 columns, second file also has 4 columns, but result should contains 5 columns and if two first columns have the same, data should be override, but if values with two first columns are different, data should be save as a new row in result file. Below is a data which my teacher gave me. First file has name letters.csv, second file has name letters_letters.csv, result file should be name resultLetter.csv. My solution give me bad result. Below is my code

  Console.WriteLine("Application for merging csv files");
  StreamReader rdr = new StreamReader(path: @"C:\Users\Acer\akademia\study\task\task\raw\letters.csv");
  string master = rdr.ReadToEnd();
  rdr.Close();
  
  rdr = new StreamReader(path: @"C:\Users\Acer\akademia\study\task\task\raw\letters_letters.csv");
  string newdata = rdr.ReadToEnd();
  rdr.Close();
  rdr.Dispose();
  
  newdata = newdata.Substring(newdata.IndexOf('\n') + 1);
  
  StreamWriter wtr = new StreamWriter(path: @"C:\Users\Acer\akademia\study\task\task\raw\result.csv");
  wtr.Write(master + "\r\n" + newdata);
  wtr.Close();
  wtr.Dispose();
  

  My result give me

  a,b,c,d
  3,4,5,8
  7,0,9,7
  2,3,4,13
  1,7,55,4
  3,4,10,10
  7,0,10,12
  2,3,13,20
  89,87,3,4
  

  But expected result should give me

  a,b,c,d,e
  3,4,5,10,10
  7,0,9,10,12
  2,3,4,13,20
  1,7,55,4,
  89,87,,3,4
  

  Please about some help :)
• How can I exit console app exe uninterrupted. (The application terminates before the ProcessExit method completes)

  I have a .net 5.0 console application. I scheduled that application exe in task scheduler. Sometimes, when I end the task, the application kills without finishing the parts I have coded to finish. (I am stopping some services, and writing things in a file if the application exiting. It needs a little bit of time.)

  I tried the following command but not working. It is doing the same things.

  taskkill /t /f /im "ApplicationEXEName.exe"
  

  I am looking for a way to do wait to finish my actions if application exiting.

  I had tried setting ShutdownTimeout when the application host creating like this. But it also not working.

  var host = Host.CreateDefaultBuilder()
              .ConfigureAppConfiguration(ConfigConfiguration)
              .ConfigureServices((context, services) =>
              {
                  services.Configure<HostOptions>(opts => opts.ShutdownTimeout = TimeSpan.FromSeconds(15));
                  ConfigureDefaultServices(services);
                  ConfigureServices(configuration, services);                 
              })
              .UseSerilog(Log.Logger, true)
              .Build();
  
• How to create Console Application in Visual Studio 2022 for Mac?

  I can't seem to understand how to create a console app project because it's not a template option. However, solutions on the internet seem to all have this option. What should I do?

  
• Localhost Error - This page can't be found - Asp.net Core MVC

  I am trying to convert HTML content into a pdf file. When I click the the Print Receipt Button, it should show the pdf file of the receipt. On the contrary, it gives This page can't be found error.

  Here is the code for the button:

   <form method="post" asp-action="ReceiptAsync">
              <div class="col-md-2">
                  <button type="submit" class="btn btn-primary btn-lg p-2" id="generatePdf">Print Receipt</button>
              </div>
          </form>
  

  Here is the code for the controller method:

  public async Task<IActionResult> ReceiptAsync()
          {
              using (var stringWriter = new StringWriter())
              {
                  var viewResult = _compositeViewEngine.FindView(ControllerContext, "ViewReceipt", false);
                  if (viewResult == null)
                  {
                      throw new ArgumentNullException("View Can't Be Found");
                  }
                  var viewDictionary = new ViewDataDictionary(new EmptyModelMetadataProvider(), new ModelStateDictionary());
                  var viewContext = new ViewContext(
  
                      ControllerContext,
                      viewResult.View,
                      viewDictionary,
                      TempData,
                      stringWriter,
                      new HtmlHelperOptions()
                      );
                  await viewResult.View.RenderAsync(viewContext);
  
                  var htmlToPdf = new HtmlToPdf(1000, 1414);
                  htmlToPdf.Options.DrawBackground = true;
  
                  var pdf = htmlToPdf.ConvertHtmlString(stringWriter.ToString());
                  var pdfbytes = pdf.Save();
  
                  return File(pdfbytes, "application/pdf");
              }
          }
  
  

  Here is the error screenshot :
• How can an authenticated user access the drive that is publicly accessible?

  With this code, I am able to get the files that have been shared to the service account email.

  But, when I shared the folder (that was not owned by me, but is publicly accessible) from a different email it is not displayed in the list.

  Is there any way an authenticated user can access the drive folder that is publicly accessible, but which I won't own?

  var serviceAccountEmail = "";
  var certificate = new X509Certificate2(_credentialsService.GetCredentialPath(), "notasecret", X509KeyStorageFlags.Exportable);
  
  ServiceAccountCredential credential = new ServiceAccountCredential(
     new ServiceAccountCredential.Initializer(serviceAccountEmail)
     {
         Scopes = new[] { DriveService.Scope.Drive }
     }.FromCertificate(certificate));
  
  
  var service = new DriveService(new BaseClientService.Initializer
  {
      HttpClientInitializer = credential
  });
  

  Getting Drive Details

   Google.Apis.Drive.v3.FilesResource.ListRequest FileListRequest = service.Files.List();
  
  // for getting folders only.
  //FileListRequest.Q = "mimeType='application/vnd.google-apps.folder'";
  FileListRequest.Fields = "nextPageToken, files(id, name)";
  FileListRequest.Corpora = "allDrives";
  FileListRequest.Q = "sharedWithMe";
  FileListRequest.IncludeItemsFromAllDrives = true;
  FileListRequest.SupportsAllDrives = true;
  
  // List files.
  IList<Google.Apis.Drive.v3.Data.File> files = FileListRequest.Execute().Files;
  List<GoogleDriveFile> FileList = new List<GoogleDriveFile>();
  

  Sharing Process:

  I shared the file to the service account email, from my personal google email.

  

  And See it is still not available, the image that I owned only is shared. Which is my problem.

  
• HTML Encoding a JSON Request body before binding to model in dotnet5 (dotnet core)

  The requirement was to ensure that we HTML encode any of the deserialized properties to prevent an API client from sending in HTML and script tags which would then be stored in the database. For example, the following JSON body should result in the title property being encoded once bound onto our model.I am referring this article

  https://www.stevejgordon.co.uk/asp-net-mvc-core-html-encoding-json-body

  {
      "Title" : "<script>Something Nasty</script>",
      "Description" : "A long description.",**
      "Reference": "REF12345"
  }
  

  I am using the below article but its not working in dotnet5 as JsonInputFormatter is not supported in dotnet5.

  https://www.stevejgordon.co.uk/asp-net-mvc-core-html-encoding-json-body

  it always throws the below error on the extension method

  Error: Could not load type 'Microsoft.AspNetCore.Mvc.Formatters.JsonInputFormatter' from assembly 'Microsoft.AspNetCore.Mvc.Formatters.Json

  public static class MvcOptionsExtensions
  {
      public static void UseHtmlEncodeJsonInputFormatter(this MvcOptions opts, ILogger<MvcOptions> logger, ObjectPoolProvider objectPoolProvider)
      {
          opts.InputFormatters.RemoveType<JsonInputFormatter>();
   
          var serializerSettings = new JsonSerializerSettings
          {
              ContractResolver = new HtmlEncodeContractResolver()
          };
   
          var jsonInputFormatter = new JsonInputFormatter(logger, serializerSettings, ArrayPool<char>.Shared, objectPoolProvider);
   
          opts.InputFormatters.Add(jsonInputFormatter);
      }
  }
  

  Below is the code from ConfigureServices method (startup.cs) where i am using NewtonsoftJson instead of default System.Text.Json

       public void ConfigureServices(IServiceCollection services)
          {
              var sp = services.BuildServiceProvider();
              var logger = sp.GetService<ILoggerFactory>();
              var objectPoolProvider = sp.GetService<ObjectPoolProvider>();
              string customViewLocation = Configuration["CommonPath"];
              services.AddControllersWithViews(options =>
              {
                  options.Filters.Add(new AutoValidateAntiforgeryTokenAttribute());
   options.UseHtmlEncodeJsonInputFormatter(logger.CreateLogger<MvcOptions>(), objectPoolProvider);
              }).AddRazorRuntimeCompilation(options => options.FileProviders.Add(
          new PhysicalFileProvider(Configuration["CommonPath"]))).AddNewtonsoftJson((x =>
           x.SerializerSettings.ReferenceLoopHandling = ReferenceLoopHandling.Ignore
           ));
              
        
  

  Remaining code removed
• How to use IHttpClientFactory in class library

  I am trying to convert some code from net core api to class library.

  I am stuck how to use HttpClientfactory. Normally the httpclientfactory can be configured in program.cs or Startup like

  services.AddHttpClient("abc", xxx config). 
  

  How to do configurations in class library for Httpclientfactory.
• In the default Visual Studio Blazor WebAssembly app, how would you create the HttpClient using IHttpClientFactory?

  Surfing the web leads me to think that the default Wasm app employs bad practice by newing a HttpClient instead of using IHttpClientFactory. So how do I do it properly?
  
  FetchData.razor uses HttpClient this way:

  @inject HttpClient Http
  ...
  protected override async Task OnInitializedAsync()
  {
      forecasts = await Http.GetFromJsonAsync<WeatherForecast[]>("sample-data/weather.json");
  }
  

  And the dependency injection is setup in Program.cs with this line:

  builder.Services.AddScoped(sp => new HttpClient { BaseAddress = new Uri(builder.HostEnvironment.BaseAddress) });
  

  It seems it shouldn't be too hard to make the change, but I can't figure it out.
• Named client graph api Access token validation failure. Invalid audience

  I have a .NET blazor wasm app that is using an api endpoint that is built into the solution , and trying to make use of the ms graph api too. I have two named clients one for the app api and another for the graph api.

  My Program.cs file looks like this (Blazor WASM .NET 6 hosted model).

  builder.Services.AddScoped(sp => sp.GetRequiredService<IHttpClientFactory>().CreateClient("App.ServerAPI"));
  builder.Services.AddScoped(sp => sp.GetRequiredService<IHttpClientFactory>().CreateClient("App.Graph"));
  
  
  
  builder.Services.AddHttpClient("App.ServerAPI", client => client.BaseAddress = new Uri(builder.HostEnvironment.BaseAddress)).AddHttpMessageHandler<BaseAddressAuthorizationMessageHandler>();
  builder.Services.AddHttpClient("App.Graph", client => client.BaseAddress = new Uri("https://graph.microsoft.com/"));
  

  I then go onto configure the Auth Layer like this . The graph api does not need access to the app api. My server api does not call the graph api directly.

  builder.Services.AddMsalAuthentication(options =>
  {
  builder.Configuration.Bind("AzureAd", options.ProviderOptions.Authentication);
  options.ProviderOptions.DefaultAccessTokenScopes.Add("api://xxx-xxx-xxx-xx/API.Access");
  });
  
  builder.Services.AddMsalAuthentication<RemoteAuthenticationState, RemoteUserAccount>(options =>
  {
      var scopes = builder.Configuration.GetValue<string>("GraphScopes");
  
      if (string.IsNullOrEmpty(scopes))
      {
          Console.WriteLine("Warning : No scope permissions founds.");
          scopes = "User.Read";
      }
      foreach (var scope in scopes.Split(";"))
      {
          global::System.Console.WriteLine($"Adding {scope} to requested permissions");
          options.ProviderOptions.DefaultAccessTokenScopes.Add(scope);
  
      }
  
     }).AddAccountClaimsPrincipalFactory<RemoteAuthenticationState, RemoteUserAccount, GraphUserAccountFactory>();
  

  I used this example to extend/create the graph api Named client https://docs.microsoft.com/en-us/graph/tutorials/blazor

  I can authenticate with each of the named clients when testing seperately, and make successful calls against both api's, but when I configure the app for capabilites to call both api's and call the ms graph api I get the following error.

  Graph api Response: InvalidAuthenticationToken\nMessage: Access token validation failure. Invalid audience.

  I do not have any errors on the login/auth process with both of the items listed as above.

  I've looked at configuring multiple auth schemes for .NET 6 as suggested here - https://docs.microsoft.com/en-us/aspnet/core/security/authorization/limitingidentitybyscheme?view=aspnetcore-6.0#use-multiple-authentication-schemes , but the namespace is not recognized in WASM when trying to configure JWT , and the app fails to build when trying this.

  I believe the Audience needs to be configured, but I am unware of how to properly achieve this in .NET 6.

  Any advice on how to go about properly utilizing two named clients within one solution ? Or how to properly configure authority within the scope of the graph client ? Thanks