All posts by Ravi Ranjan Kumar

How to solve SSL/TLS validation error while making connection in C#

In this article, you will learn how to deal with SSL/TLS validation error using C#. If you are trying to establish a connection with a web server using c# and getting an exception as given below : SocketException: An existing connection was forcibly closed by

RabbitMQ with C#

In this article, you will learn how to write a basic program using RabbitMQ and C# like how to create connections, how to publish a message in the queue and how to receive that message from a queue. Before writing code, I assume you have

JWT Authentication with ASP.NET WEB API

In this article, we will learn how to authenticate ASP.NET WEB API using JSON Web Token(JWT). If you are new to JWT then I would like to request you to please go through with our article which briefly explains A Basic Introduction to JSON Web

A Basic Introduction to JSON Web Token(JWT)

In this article, you will learn the basic fundamental of JWT like how it works, what is JWT, what is the structure of JWT. If you would like to implement JWT based authentication in your API, you can either use one of the existing open

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How to use FileUpload control inside ASP.Net AJAX Update Panel

There are plenty of questions asked by developers around the globe that they are not able to use FileUpload asp.net control inside ASP.Net Ajax update panel. Their issues are FileUpload control inside Asp.Net Ajax update panel doesn’t hold any file and also return false for

Upload and Download File from Database using ASP.Net Web API

This article will guide you how to upload a file in the database and download it from the database(SQL Server) using ASP.Net Web API and Entity Framework. To consume Web API you can simply use JQuery Ajax. Create a Table in the Database First, you

Validating UIDAI Aadhaar number using Verhoeff Algorithm

If you are working on such application where you have to authenticate Aadhaar number entered by the user you may want to validate it using any standard algorithm before sending it to UIDAI server to get auth response. Before learning how to write code using Verhoeff

ConcurrentDictionary code-adda.com

C# ConcurrentDictionary with Examples

In the previous blog C# Dictionary with Examples, we have learned about C# Dictionary and how to use it for different purposes like Initialization, adding values, reading values, etc. In this article, we are going to learn about ConcurrentDictionary and how to use it for different purposes.

C# Dictionary - Code-adda.com

C# Dictionary with Examples

We all know the meaning of Dictionary in general terms, Dictionary is a collection of words arranged alphabetically and each word has its own meaning. In C# the concept of Dictionary is almost same let’s read what is a dictionary and how we can play

How to run python code in visual studio code

In this article, I am going to guide you how to use VS Code (Visual Studio Code) to run python code. Either you are novice learner or experienced python developer you need an IDE(Integrated Development Environment) to run the code and build stuff.  There are