Use json to get data from class members

See also questions close to this topic

• Running a C# Console App in the Background Continously until System Shutdown

  I am aware that similar questions have been asked before but bare with me so you know why I need your help. Basically, I have a basic app that asks user to 'Press any key or Enter to exit'. The purpose of implementing my app this way is to have it running till the system shuts down or the user logs out. But I want to have it invisible so the user doesn't accidentally close it when pressing a key intended for another program. The structure of my program is:

  using System;
  
  namespace myApp
  {
    class Program
    {
       private static void Main()
       {
         // Some code here
  
         // do not close until closed manually
         Console.WriteLine("Press any key to exit");
         Console.ReadKey();
       }
  
        Public static void Method1 ()
        {
           // some code here
        }
  
        Public static void Method2 ()
        {
           // some code for method 2 here
        }
      }
   }
  

  In a similar post, people are suggesting solutions that are either little advanced or do not work for me, e.g. 1) changing into a Windows service application, 2) running the .exe file of the program as a task, 3) outputting this console app as a Windows app, 4) starting the VS project as a Windows Form application then not calling any forms, etc. But this does not work for me. Let me describe why.

  I have tried options 3 and 4 above, but my app completely disappears/closes, I check the task manager thinking it is may be running in the background but it is not there and that means it closes straight away.

  I feel changing the app to a windows service will complicate things for my ClickOnce app. As for 2, people have suggested to open the program as a task and hide the window, but I am not sure how I can do this in the code itself without calling it externally as .exe application. Thank you in advance.
• Should I worry the debug exception in the signalR integration test?

  The exception is printed in the debug window, something like this:

  vstest.executionengine.x86.exe Error: 0 : Error while closing the websocket: System.Net.WebSockets.WebSocketException (0x80004005): An internal WebSocket error occurred. Please see the innerException, if present, for more details. ---> System.Net.Sockets.SocketException (0x80004005): An existing connection was forcibly closed by the remote host at System.Net.WebSockets.WebSocketConnectionStream.WebSocketConnection.WriteAsync(Byte[] buffer, Int32 offset, Int32 count, CancellationToken cancellationToken)

  There are more, I just cut them.

  What I am trying to do is writing integration test for my SignalR server and client.

  Here are 2 simple test cases:

          [TestMethod]
          public void It_Should_Allow_Register()
          {
              using (var server = WebApp.Start<Startup>("http://+:61744"))
              {
                  var client = GetConnectedClient();
                  Assert.IsTrue(client.IsConnected);
                  DisposeClients(client);
              }
          }
  
          [TestMethod]
          public void It_Should_Allow_MultipleClients()
          {
              using (var server = WebApp.Start<Startup>("http://+:61744"))
              {
                  var client1 = GetConnectedClient();
                  Assert.IsTrue(client1.IsConnected);
  
                  var client2 = GetConnectedClient();
                  Assert.IsTrue(client2.IsConnected);
  
                  DisposeClients(client1, client2);
              }
          }
  

  I have other test cases, but the idea is, every test will bring up the in-memory self-hosted Owin server, and create one or more clients connecting to it, and then safely disconnect all the clients after the business logic is executed.

  Unfortunately, if I run one test case at a time, it works fine. But if I run all of them together, that annoying WebSocketException is printed.

  The test case appears to be executed fine. I print out the request and response (when invoking SignalR server function) in debug. Everything is fine exception the exception in the debug trace.

  I found this post: SignalR Websocket Exception when closing client

  so for no reason, I added

  Connection.Stop(TimeSpan.FromSeconds(3000)); 
  

  Connection is a HubConnection.

  It's still the same.

  Honestly, should I even care, if I am sure all business logic in my tests are executed?
• ..NET core identity login requires two clicks

  I'm seeing odd behavior with the login/logout routes. I have the front-end set up using React. When the Login button is clicked, it makes an ajax call to a route /login, which then runs the login function below:

  [HttpPost]
  public async Task<IActionResult> Post([FromBody] LoginModel loginModel) {
    if (!ModelState.IsValid) {
      return new BadRequestResult();
    }
    var signInResult = await SignInManager.PasswordSignInAsync(loginModel.Username, loginModel.Password, false, false);
    if (signInResult.Succeeded) {
      var currentUser = await UserManager.GetUserAsync(User);
      if (currentUser == null) {
        return new BadRequestResult();
      }
      var myUserModel = Mapper.Map<MyUser, MyUserModel>(currentUser);
      return new OkObjectResult(myUserModel);
    }
    return new BadRequestResult();
  }
  

  The issue is that I have to click the button twice. The first time I click it, this function hits currentUser == null, so it returns a 400. But the second time I click it, it works just fine.

  I am trying to login, then return the user object back to the front-end.
• Creating a config file to map model in json format to csv

  How can I build a config file that has a python model in json format that maps to the csv column name?

  My plan is when a json data comes in, it will look into this config file, map the data's field with the config's json field, then get the csv column name. Example as below:

  First I have a json as below:

  {
  "id": {
      "type": "integer",
      "format": "int64"
  },
  "category": {
      "$ref": "#/definitions/Category",
      "x-scope": [
          "https://petstore.swagger.io/v2/swagger.json"
      ]
  },
  "name": {
      "type": "string",
      "example": "doggie"
  },
  "photoUrls": {
      "type": "array",
      "xml": {
          "name": "photoUrl",
          "wrapped": true
      },
      "items": {
          "type": "string"
      }
  },
  "tags": {
      "type": "array",
      "xml": {
          "name": "tag",
          "wrapped": true
      },
      "items": {
          "$ref": "#/definitions/Tag",
          "x-scope": [
              "https://petstore.swagger.io/v2/swagger.json"
          ]
      }
  },
  "status": {
      "type": "string",
      "description": "pet status in the store",
      "enum": [
          "available",
          "pending",
          "sold"
      ]
    }
  }
  

  Then I have csv column name as below:

  id, category, name, photoUrls, tags, status
  

  Now I want a config file which has mapping of this 2 field and probably some settings like delimiter type , etc.

  How can I achieve that using python?
• I want to write a code for the following programming exercise in Javascript which includes adding, removing and getting

  The restaurant "menu" offers:

  With the addFood method, food or drink can be added or changed. All remaining food and drinks will be returned with a quotation in JSON.

  Examples:

  addFood ("Coke", 1.34)  
  addFood ("Burger", 5.94)  
  addFood ("Salad", 3.10)  
  addFood ("Burger", 6.99) 
  

  The removeFood method removes a food or drink. All remaining food and drinks will be returned with a quotation in JSON.

  Examples:

  removeFood ("Coke")  
  removeFood ("salad")
  

  The getPrice method provides either the price of a meal, a drink or a menu.

  Examples:

  getPrice ("Burger")  
  getPrice ("Coke", "Burger", "Salad")
  

  The method getMenucard provides all possible menu compositions (with price) in JSON.

  Examples:

  getMenucard ()
  
  Coke: 1.34 Coke
  Burger: 8.33
  Salad, Burger: 10.09
  ...
  
• Yun parsing telegram bot with arduinojson

  I'm trying to read messages sent to my bot with my arduino yun, but I can't understand how to parse them with arduinoJSON. I can get the bot updates, but then I have lots of problem. Anyone has some advice? This is the code:

   #include <ArduinoJson.h>
  #include <Bridge.h>
  #include <HttpClient.h>
  #include "arduino_secrets.h"
  const String BotToken = SECRET_BOT_TOKEN;
  char json;
  const size_t bufferSize = JSON_ARRAY_SIZE(1) + 2 * JSON_OBJECT_SIZE(2) + JSON_OBJECT_SIZE(4) + 2 * JSON_OBJECT_SIZE(5) + 270;
  DynamicJsonDocument jsonBuffer(bufferSize);
  
  void setup() {
    pinMode(13, OUTPUT);
    digitalWrite(13, LOW);
    Bridge.begin();
    digitalWrite(13, HIGH);
    SerialUSB.begin(9600);
  
    while (!SerialUSB);
  }
  
  void loop() {
    HttpClient client;
    client.get("https://api.telegram.org/bot" + BotToken + "/getUpdates");
    while (client.available()) {
      char c = client.read();
      char chars = char(c);
      json += chars;
    }
  
    //json = "{\"ok\":true,\"result\":[{\"update_id\":111111111,\"message\":{\"message_id\":7,\"from\":{\"id\":111111111,\"is_bot\":false,\"first_name\":\"name\",\"last_name\":\"lastname\",\"language_code\":\"it\"},\"chat\":{\"id\":111111111,\"first_name\":\"name\",\"last_name\":\"lastname\",\"type\":\"private\"},\"date\":1234567890,\"text\":\"text\"}}]}"
    JsonObject& root = jsonBuffer.parseObject(json);
  
    bool ok = root["ok"];
  
    long result0_update_id = root["result"][0]["update_id"];
  
    JsonObject& result0_message = root["result"][0]["message"];
    int result0_message_message_id = result0_message["message_id"];
  
    JsonObject& result0_message_from = result0_message["from"];
    long result0_message_from_id = result0_message_from["id"];
    bool result0_message_from_is_bot = result0_message_from["is_bot"];
    const char* result0_message_from_first_name = result0_message_from["first_name"];
    const char* result0_message_from_last_name = result0_message_from["last_name"];
    const char* result0_message_from_language_code = result0_message_from["language_code"];
  
    JsonObject& result0_message_chat = result0_message["chat"];
    long result0_message_chat_id = result0_message_chat["id"];
    const char* result0_message_chat_first_name = result0_message_chat["first_name"];
    const char* result0_message_chat_last_name = result0_message_chat["last_name"];
    const char* result0_message_chat_type = result0_message_chat["type"];
  
    long result0_message_date = result0_message["date"];
    const char* result0_message_text = result0_message["text"];
    json = "";
  
  }
  

  Thanks
• Authentication between Projects in .net core

  I am trying to build multi layered web app, users can access via google auth or ldap acc. It has,

  • Core Layer (Library - All models)
  • Data Access Layer (Library)
  • Bussiness Logic Layer (Library)
  • API Layer (.Net Core Web API)
  • Web Layer (.Net Core MVC Project)

  When a user login into the web site, I have to use same authentication both MVC and API. Should I use aspnet identity for login (with auto generated user db), how can pass the authentication to API project? Or is there a way when google aut or ldap login is successful then I can create Bearer token (or something like that) and use it both MVC and API projects as authenticated login?

  PS: I work on .net core 2.2
• relationship with aspnetusers table

  Good afternoon. I am working with three projects, I have the backend application in one project, and my models in another class library project. the backend is related to my models.

  I am using using identity authentication. In the following tables I need a relationship.

  

  public class Reserva
  {
      [Key]
      public int IdReserva { get; set; }
  
      public int IdCancha { get; set; }
  
      public string Descripcion { get; set; }
  
      [DataType(DataType.DateTime)]
      [DisplayFormat(DataFormatString ="{0:dd/MMM/yyyy hh:mm tt}")]
      public DateTime FechaInicio{ get; set; }
  
      [DataType(DataType.DateTime)]
      [DisplayFormat(DataFormatString = "{0:dd/MMM/yyyy hh:mm tt}")]
      public DateTime FechaFin { get; set; }
  
  }
  

  IdentityModels.cs

  public class ApplicationUser : IdentityUser
  {
      public async Task<ClaimsIdentity> GenerateUserIdentityAsync(UserManager<ApplicationUser> manager)
      {
          // Note the authenticationType must match the one defined in CookieAuthenticationOptions.AuthenticationType
          var userIdentity = await manager.CreateIdentityAsync(this, DefaultAuthenticationTypes.ApplicationCookie);
          // Add custom user claims here
          return userIdentity;
      }
  
      public string FirstName { get; set; }
  
      public string LastName { get; set; }
  
  }
  

  I have a problem when adding the following line, because there is no reference of my model to my backend

  Reservas.cs

  public virtual ApplicationUser ApplicationUser 
  

  I want my Reserves model, add the user id

  thank you.
• Layer Codeigniter

  How can I add another layer when working with Codeigniter? In MVC we have the 3 layers, I would like to add, for example, the BL layer (Business logic).