Check if user is logged in with Token Based Authentication in ASP.NET Core

I managed to implement this token based authentication system in my application, but I have a little question. How can I check if a user is signed it (eg if the there is a valid token in the request) ...

24 Dec at 18:31

How to trigger (NOT avoid!) an HttpClient deadlock

There are a number of questions on SO about how to deadlocks in async code (for example, `HttpClient` methods) being called from sync code, like [this](https://stackoverflow.com/questions/10343632/ht...

Docker not hosting anything on the port it says it is, what's going on?

I am working through [this blog post](http://www.hanselman.com/blog/ExploringServiceStacksSimpleAndFastWebServicesOnNETCore.aspx) which explains how to host a sample ServiceStack app on .net core via ...

23 Dec at 18:53

How to generate password_hash for RabbitMQ Management HTTP API

The beloved [RabbitMQ Management Plugin](https://www.rabbitmq.com/management.html) has a [HTTP API](https://raw.githack.com/rabbitmq/rabbitmq-management/rabbitmq_v3_6_6/priv/www/api/index.html) to man...

23 May at 12:17

ToListAsync in ASP.NET MVC Core and Entity Framework not working

I have the following code in ASP.NET MVC Core and Entity Framework and I get the following error when I do a `ToListAsync`. > Additional information: The source IQueryable doesn't implement IDbAsyn...

Execution Timeout Expired. The timeout period elapsed prior to completion of the operation or the server is not responding

When I run my code I get the following exception: > An unhandled exception of type 'System.Data.SqlClient.SqlException' occurred in System.Data.dllAdditional information: Execution Timeout Expired. T...

20 Jun at 09:12

How do I add validation to the form in my React component?

My Contact page form is as follows, ``` <form name="contactform" onSubmit={this.contactSubmit.bind(this)}> <div className="col-md-6"> <fieldset> <input ref="name" type="text" size="30" pl...

Why can't I assign to an lambda-syntax read-only property in the constructor?

My case: ``` public class A { public string _prop { get; } public A(string prop) { _prop = prop; // allowed } } ``` Another case: ``` public class A { public string _pr...

29 Dec at 20:34

Add Authentication to /swagger/ui/index page - Swagger | Web API | Swashbuckle

I'm working on a Swagger (Web API) project. When I first run the application it shows the Login page for Swagger UI. So, a user first has to login to access Swagger UI Page, However, if user directly...

Get name of specific Exception

Is this the best method for getting the name of a specific Exception in C#: ``` ex.GetType().ToString() ``` It is in a generic exception handler: ``` catch (Exception ex) ```

7 Nov at 21:29

Unit testing controller methods which return IActionResult

I'm in the process of building an ASP.NET Core WebAPI and I'm attempting to write unit tests for the controllers. Most examples I've found are from the older WebAPI/WebAPI2 platforms and don't seem t...

Could not find a declaration file for module 'module-name'. '/path/to/module-name.js' implicitly has an 'any' type

I read how TypeScript [module resolution](https://www.typescriptlang.org/docs/handbook/module-resolution.html) works. I have the following repository: [@ts-stack/di](https://github.com/ts-stack/di). ...

21 Feb at 14:6

AngularJs, WebAPI, JWT, with (integrated) Windows authentication

I've asked a [question](https://stackoverflow.com/questions/40749346/claims-based-authentication-with-active-directory-without-adfs) before and the answer that was given was correct but the farther I ...

.NET core Pass Commandline Args to Startup.cs from Program.cs

I'm trying to configure kestrel so that when it's in it's raw mode it runs on a specific port. However to do so it appears that the launchsettings.json needs to pass command line args to do so since t...

29 Nov at 14:35

Why is a local function not always hidden in C#7?

What I am showing below, is rather a theoretical question. But I am interested in how the new C#7 compiler works and resolves local functions. In I can use For example (you can try these examples in...

14 Jan at 15:52

How do I write logs from within Startup.cs?

In order to debug a .NET Core app which is failing on startup, I would like to write logs from within the startup.cs file. I have logging setup within the file that can be used in the rest of the app ...

12 Nov at 00:44

Remove empty string properties from json serialized object

I have a class. It has several properties lets say 10. Out of these 10, 3 are filled with data remaining 7 are blank.i.e. empty strings "" Used this [link](https://stackoverflow.com/questions/15574506...

23 May at 12:16

Get total of Pandas column

I have a Pandas data frame, as shown below, with multiple columns and would like to get the total of column, `MyColumn`. `print df` ``` X MyColumn Y Z 0 A ...

15 Aug at 16:41

Overriding interface property type defined in Typescript d.ts file

Is there a way to change the type of interface property defined in a `*.d.ts` in typescript? for example: An interface in `x.d.ts` is defined as ``` interface A { property: number; } ``` I wan...

Automapper error saying mapper not initialized

I am using Automapper 5.2. I have used as a basis [this](https://stackoverflow.com/questions/41220742/setting-up-automapper-5-1) link. I will describe, in steps, the process of setting up Automapper t...

23 May at 11:33

Asp.net core Identity "The INSERT statement conflicted with the FOREIGN KEY constraint "

I create ASP.NET CORE application with ASP.NET CORE Identity. I create seed class for saving new users and roles for first startup application. Inside this seed class I get following error when I add...

setState doesn't update the state immediately

I would like to ask why my state is not changing when I do an `onClick` event. I've search a while ago that I need to bind the `onClick` function in constructor but still the state is not updating. He...

How to refresh TableView data after tapping ViewCell in Xamarin Forms?

So I have the following code that creates ViewCells for my `TableView` dynamically: XAML: ``` <StackLayout> <TableView Intent="Settings"> <TableView.Root> <TableSection x:Name="tab...

28 Apr at 19:18

Check if any property of class is null

I have following class:- ``` public class Requirements { public string EventMessageUId { get; set; } public string ProjectId { get; set; } public List<Message> Mes...

22 Dec at 04:27

Web API POST parameter is null for large JSON request

I have a POST method in Web API controller that takes a class with 50 fields as parameter. I am getting the parameter value as `null` in the controller, but if I reduce the number of fields to 30 or s...

22 Dec at 03:16