• Basic understanding of .NET Core 6 API and C#.
  • Visual Studio 2022
  • SQL Server


  • Create .NET Core API using version 6
  • Configure Hangfire in .NET
  • Look into the different types of jobs that are present in Hangfire.


  • Hangfire is open-source and used to schedule the job at a particular event and time.
  • It is also used to create, process, and manage your background jobs.
  • We use this in background processing without user intervention.
  • Hangfire is reliable and persistent. It will take care of all things once the job is scheduled.
  • Hangfire dashboard is also available for us to manage all things easily.

Why Hangfire is Required in Background Processing

  • Sometimes we need to do lengthy operations like database updates and database maintenance so it’s managed periodically. 
  • Batch import from XML, JSON, and YAML files.
  • Recurring reports on a periodic basis.
  • Mass notification on subscription and sign up basis.

So, these are things that we are able to do periodically over a certain period of time as per our requirements.

There are different types of jobs that are present in Hangfire. We will look at them one by one.

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We had a great talk with Bjarne Stroustrup, the designer and original implementer of C++. He is also the author of The C++ Programming Language (Fourth Edition), A Tour of C++ (Second Edition), Programming: Principles and Practice Using C++ (Second Edition), and many popular academic publications.

Enjoy the full interview below!

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Some believe that experienced developers do not make silly errors. Comparison errors? Dereferencing null references? Bet you think: « No, it’s definitely not about me… » ;) By the way, what about errors with sorting? As the title suggests, there are some nuances.


Let me give you an example to describe the problem. Let’s say we have some type (Wrapper) with two integer properties (Primary and Secondary). There’s an array of instances of this type. We need to sort it in ascending order. First — by the primary key, then — by the secondary key.

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Websites as we know them are going to change very soon. The days of text, images, and basic interactions in a 2D browser window have served us well, but virtual, augmented, and mixed reality experiences are getting better all the time. Developers and designers need to think beyond the browser window and prepare for an immersive future.

Many have been very skeptical about VR and AR in the past because despite grand promises about what they would achieve, they’ve mostly failed to deliver on the scale that the industry hoped for.

But it’s different this time: industry leaders like Meta, Apple, and Microsoft are pursuing a range of different mixed reality projects; they see the opportunity and are dropping hints about what’s next.

In a survey from Perkins Coie LLP and the XR Association, nearly 9 in 10 respondents said that by the year 2025, immersive technologies—including augmented reality, virtual reality, and mixed reality — will be as ubiquitous as mobile devices.

That’s a bold prediction, but it could be our new reality.

Use Cases

VR and AR aren’t a logical fit for every website, and that’s fine. There’s no need to force an immersive experience on something better suited to a standard viewing experience.

But when they’re done right, 3D experiences can add a lot to your website. Check out the demo experience from Mozilla, the 3D tours from Matterport, and the immersive storytelling from Within.

Here are a few areas where these technologies shine:

  • Retail – VR can be used to provide a virtual showroom where customers browse through products. AR can even bring the products into your home by showing you how a piece of furniture will fit in your room, what a painting will look like on your wall, or in Apple’s case, how a product will look on your desk.
  • News – Coverage of events can be enriched by providing a 360-degree view and placing viewers in the center of the story.
  • Training – AR can generate virtual overlays over physical equipment so employees can have hands-on training that’s more effective.

Define Your Platform

Adding immersive experiences to your website will require various skills based on what you’re trying to create. Whether you’re new to web development or are a seasoned developer with many years of experience, the main difference from classic web development is that you’re switching from a 2D to a 3D experience. Development in VR/AR is much closer to developing 3D video games than creating web applications.

First of all, you need to decide on the hardware that you’re building for. Are your viewers mainly using computers, smartphones, or a headset like the Oculus Quest? Each hardware category offers a different set of capabilities for what’s possible.

Next, when we look at 3D engines and frameworks on the market, some big names like Unity, Unreal Engine, and CRYENGINE stand out. Most of these engines were spun out of game development and are based on programming languages like C, C++, or C#. While very powerful, they’re overkill for anyone trying to create a basic immersive web experience.

The good news for web developers is that the WebXR Device API is an open standard specified by the W3C with a JavaScript API that makes immersive experiences possible in the browser. So if you already have a background in web development, you can use your knowledge of JavaScript to get started.

There are some useful frameworks and platforms that make working with WebXR more convenient:

  • A-Frame – A web framework for building 3D experiences.
  • React 360 – A framework for the creation of interactive 360-degree experiences that run in the web browser. As the name already suggests, it builds on React and reuses the concepts you already know.
  • Amazon Sumerian – A managed service that lets you create and run 3D, AR, and VR applications. Since it’s integrated into the AWS ecosystem, it’s also possible to add AI-enabled elements into your generated world.

Create Your Content

No one wants to read long blocks of text in 3D. Since we’re talking about visual experiences, it’s logical that the emphasis should be on creating content that is pleasing to the eye and interesting to look at. What works on a normal website probably isn’t going to feel natural in a 3D environment, so you need to decide what visuals you should create to suit the format.

What high-resolution images and assets do you need? Can you add videos? How about 360-degree videos? Will viewers just be looking at something, or will they be able to interact with it?

You also can’t forget about sound because it’s a critical part of immersive experiences. What music and sounds should you create to make the content come alive?

Not everyone is going to have the latest and greatest device or 5G coverage. The requirements for bandwidth and transmission quality are much higher with 3D content. A few milliseconds of latency can go unnoticed on a typical website, but in a VR/AR setting, it can make the experience laggy or unusable.

Try to optimize your content to be the highest quality it can be within a reasonable file size. If the experience starts to suffer from too many assets downloading at the same time, it’s better to create a more streamlined experience that maintains a high performance rate.

It’s important to consider your hosting infrastructure, as well. This shouldn’t be a big problem, but it is worth mentioning that you need to add new content types to your configurations, and your CDN needs to support these new types, too.

Make Your Content Flexible

When we’re talking about getting your website ready for immersive experiences, we’re not just talking about having people scroll through your regular website in VR. That isn’t compelling for your audience.

The idea is to take some content that’s already on your website and separate it from the presentation layer so you can use it in a 3D environment or any other platform that you want. Classic content management takes place in silos, which means you cannot easily reuse the content from your website.

This separation can be achieved by using a classic database, but if you want developers and content teams to collaborate, a headless CMS is front-end agnostic and more user friendly.

Start Experimenting Today

Building 3D content experiences may seem intimidating, but as we’ve seen, you likely already have the web development skills necessary to get started and try out some different ideas.

What you build today will prepare you for the 3D future of tomorrow.


Featured image via Pexels.


The post How to Prepare for the Immersive Web first appeared on Webdesigner Depot.

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Today, we discuss C# code quality and a variety of errors by the example of CMS DotNetNuke. We’re going to dig into its source code. You’re going to need a cup of coffee…


DotNetNuke is an open-source content management system (CMS) written mainly in C#. The source code is available on GitHub. The project is part of the .NET Foundation.

Source de l’article sur DZONE

Fundamentally Hyperlambda is really just a Turing complete markup language, with some added capabilities resembling features from XSLT and XPath. You could argue Hyperlambda is the programming equivalent of YAML. On the index of « programming level abstractions » if we argue that CISC x86 assembly code is at level 1 (the bottom level) and C# and Java is at level 5, while Python and PHP are at level 10 – Hyperlambda is at level 100+ somewhere.

Of course, the point being, that 95% of the times you need a low level programming construct, Hyperlambda implicitly creates your C# objects and ties these together 100% correctly out of the box. This reduces the cognitive complexity of your resulting app’s code by orders of magnitudes. To illustrate this difference, please have a look at the following code snippet taken from Microsoft’s official documentation for how to correctly create an HTTP request from C#.

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The best free online coding websites for beginners are hubs of education and insight, designed to take your knowledge and career to the next level.

For years, technical careers have been gaining more attention among innovative individuals. In a digital world, people capable of speaking computer language often have the widest selection of job opportunities. However, before you can start leveraging the blossoming job market, you need to hone your skills. That’s where free coding websites come in.

A free online coding website is an environment where you can develop your understanding of various kinds of code, update your programming prowess, and even earn certifications. Today, we’re going to be looking at some of the most impressive coding websites on the market.

Coding Careers: Opportunities in 2021 and Beyond

Before we leap into our overview of the best free coding websites, let’s examine why it’s so important to invest in your coding role. Looking at the US Bureau of Labor Statistics, we see that coders earn an average of $89,190 per year.

Elsewhere, CompTIA notes that technology hiring has accelerated since the end of 2020, with up to 391,000 new positions opening in the US during December.

Though coding careers have been popular for some time now, they have particularly high value following the pandemic, as companies worldwide adapt to the changes associated with remote workforces, digital customer service, and ecommerce. The pandemic has made us more reliant on technology than ever before, as a result:

  • Coding skills are in high demand: Coding skills are essential for the newly digital world. Studies find that the pandemic has accelerated digital transformation by around 7 years. Companies need coding professionals to stay ahead of the curve.
  • Coding knowledge is becoming more versatile: Companies are looking for coding skills in more than just programmers. They want their data analysts, IT workers, artists, designers, and other professionals to have these talents too.
  • People with coding talent can earn more: Jobs requiring coding skills tend to pay more than those that don’t. This reveals the growing need for coding knowledge in the digital ecosystem.

Coding skills provide an avenue to tech professionals for higher-income jobs, and these careers are growing faster on average than other job opportunities.

The Best Websites for Learning to Code

Learning to code or developing your existing coding skills can help you to unlock a host of new opportunities. Today, you can learn coding online for free, just by visiting the right websites.

Even a basic knowledge of coding can drive a range of results, such as helping to support the better management of websites, reducing reliance on outside developers, and opening the door to app development. So whether you want to start a new career or upgrade your existing knowledge, these sites will help:


BitDegree is a wonderful website for anyone interested in web development, coding, data science, and programming. There are various courses to choose from, depending on the career path you want to take. For instance, you can learn about the AWS cloud or start your journey into gaming development. For coding, BitDegree covers languages like:

  • CSS
  • HTML
  • PHP
  • SQL
  • JavaScript
  • jQuery

The best thing about BitDegree is how it makes learning so fun. There are gamified courses and sections where you can really dive into the essentials of coding. In addition, the online coding course collection often features hundreds of discounted options for people on a budget.


One of the most popular sites for learning how to code for free, CodeAcademy is home to over 24 million students who have built their skills. The interactive learning approach lets you apply what you’ve learned immediately. Over 300 million hours of free coding content are available to check out at your leisure. Like most coding platforms, you can learn languages such as:

  • CSS
  • JavaScript
  • HTML
  • PHP
  • jQuery
  • Python
  • PHP
  • Ruby

CodeAcademy is particularly effective for beginners because you get instant feedback after submitting your coding efforts. When you make mistakes, you’ll find out exactly where you went wrong, allowing you to avoid similar mistakes in the future.


Codewars by Qualified is definitely one of the most versatile free platforms for learning how to code. There are dozens of languages you can learn – too many to list right here. Options range from C++ and C# to Ruby, Python, Lean, Java, PHP, Scala, and countless others.

Codewars teaches you your programming language in-depth by selecting challenges designed to put your mind to the test. The goal for each challenge is to help you sharpen your knowledge over time, with tasks that get progressively more difficult over time.

The cool thing about Codewars is it allows you to see how you respond to challenges compared to how other coders have tackled the same issues.


Designed for a younger community of would-be coders, is an engaging and highly accessible introduction to coding. With around 60 million students worldwide, the platform gives you access to a wide range of different learning opportunities intended to suit different needs and learning levels.

The environment is built on a desire to bring coding into the standard curriculum. You can dive into full one-hour tutorials, or you can experiment with a more structured approach to learning, which is ideal for people with different learning styles. There’s also a huge catalog of courses extending from basic coding for younger kids all the way to University-level education.

Free Code Camp

A diverse option in our free coding website list, Free Code Camp is all about developing your coding knowledge while simultaneously networking with other like-minded people in the industry. The solution allows you to learn coding by participating in challenges – which is ideal if you want to put your skills to the test as soon as possible.

To help you jump in, you’ll have access to a range of courses and tutorials designed to help you understand and overcome each challenge. You can even code for non-profits on the platform and build tradeable projects in languages like:

  • HTML5
  • Javascript
  • Node.JS
  • CSS3
  • React.JS
  • Databases
  • Git

If you’re a little nervous about the concept of coding alone, you’ll have a full community to work within the Free Code Camp. You might even meet someone you can work with in the years ahead.

Code Conquest

Code Conquest is less of a course website and more of a comprehensive guide for beginners diving into the world of code. This amazing platform will help you understand all of the basics of coding in no time – even if you’re brand-new to the landscape. You can find out what coding is all about, learn which languages are best to learn for your needs, and more.

The website is full of resources for all kinds of coders, including comprehensive tutorials, reviews, a knowledge center, training packs, and more. You can even choose from a range of languages like:

  • CSS
  • HTML
  • PHP
  • jQuery
  • Ruby
  • JavaScript
  • Python
  • MySQL

To help you figure out where you should get started, the Code Conquest website also gives you recommendations on which tutorials to take next.


One of the better-known free websites for coding on the market today, W3Schools is an environment packed full of example codes, resources, tutorials, exercises, and libraries to help you learn how to code. The site is one of the largest in the world for developers.

To begin coding with W3 Schools, you’ll need to choose the programming language that’s right for you, then either jump into the program immediately or select from a range of learning options. The site comes with a handy quiz to help you define your knowledge level.

Languages range from CSS to SQL, JavaScript, HTML, Python, Java, C++, and many more.

Code Avengers

Code Avengers offers a fun and interactive approach to learning how to program and code. There are various course options to teach you how to create everything from games and apps to entire websites. The good thing about the Code Avengers website is you don’t need a lot of spare time to start learning. Each course takes around 12 hours to complete.

You can choose from languages like HTML, CSS, Python, jQuery, JavaScript, and more, and connect with a wide selection of similar coding enthusiasts, just like you. The biggest downside is that the free trial only lasts for seven days before you’ll need to pay to use the full program.

The Code Player

A simple and effective website for learning how to code and building your existing skills. There are tons of videos and demos to walk you through the process of learning how to code from scratch. All you need to do is click on one of the things you want to learn how to do, like creating a simple web page, and the site will give you a video walkthrough.

Though a little simple compared to other coding resources, the Code Player still has a lot of great video guidance to help beginners jump into various languages. For example, you can learn about CSS and HTML or check out various tools to help you make a more effective website.


If you’re particularly interested in learning about Java, the CodeGym is probably the website for you. This online Java programming course teaches you the basics of Java by allowing you to dive into various tasks. You can get involved with various exercises depending on your existing skill level and play around with games designed to teach you more about the coding landscape.

This website is fantastic for people in all stages of the coding journey. Whenever you suggest a solution to a challenge, the website will give you immediate feedback to learn from. There are more than 500 hours of Java coding exercises and educational resources to explore.

The Odin Project

One of the better-known free coding websites on the market, the Odin Project aims to take the headaches and frustration out of learning web development. If you’re a beginner looking to develop a career in coding, then the Odin Project will give you all the pieces of the puzzle required to decide exactly where you want to go and build the appropriate skills.

This site offers a full-stack curriculum of coding education options, with tons of challenges, tasks, and exercises to help you put your newly gained knowledge to the test. You’ll learn how to program in languages like CSS and HTML, explore the basics of JavaScript and Ruby, and even get tips on how to get hired when your skills are maxed out.

Plural Sight

Previously known as Code School, Plural Sight is a fantastic online learning platform that allows you to build your knowledge through a range of paid and free courses. The comprehensive platform is organized into a wide selection of different learning paths. You can choose how you want to develop your skills based on your chosen language and your existing skillset.

You choose an education path created by professional instructors to achieve specific outcomes, and Plural Sight gives you all the material you need. You can also practice what you’ve learned during the course in your browser and get immediate feedback on what you need to work on. There’s even a gamification aspect that allows you to earn points for every course level you complete.

MIT Open Courseware

Imagine how amazing it would be to get accepted to MIT to learn your new coding skills? What if you didn’t have to go through the headache of an official application. If you have a computer and internet access, you can explore MIT’s course material easily through the MIT Open Courseware website. This dedicated website gives you an insight into all of the courses and materials learned by students at MIT.

You can browse through all the courses available in the programming landscape and filter through results based on things like course features. For instance, you might specifically look for courses with their own online textbook, lecture notes, and videos. It’s a great way to get an insight into how one of the most reputable universities in the world offers coding education.

Web Fundamentals

We’ve already looked at a website offering coding resources specifically for Java, now let’s take a look at one designed for HTML5. Launched about 11 years ago as HTML5 Rocks, the Web Fundamentals website is packed full of tutorials, resources, and insights into the most recent updates to HTML5. This open-source environment allows developers and programmers to really get active with their skills.

You can play around with some of the code already available on the website, and explore tutorials authored by a range of amazing individuals. Although these courses are very comprehensive, it’s worth noting that they might not be the perfect choice for true beginners, as the tutorials can be more complex than most.

Dash General Assembly

If you’re keen to learn the essentials of coding in some of the most popular languages, like CSS, JavaScript, and HTML, then Dash General Assembly is the site for you. This website offers fun and free courses which will guide you through the basics of web development. You even get interactive tasks and challenges you can leverage within your browser, with no downloads required.

Users learn how to do a range of amazing things with this website, including how to code HTML5, build a beautiful website, and balance your layouts for aesthetic appeal and usability. You can even design dynamic interfaces where you can add aminations and effects. Dash General Assembly is a fantastic tool for anyone keen to get started in the world of coding.

Finally, promises beginners a fast and simple way to start learning how to code, while having plenty of fun. This exciting website immerses you within a digital story which takes you on an adventure through the basics of coding. You’ll need to learn real-life coding skills to navigate your way through the rest of the story, which means you can develop your C# knowledge as you go.

This is one of the more unique tools for learning how to code that we’ve found so far. It’s a great way to discover the basics of C# without being bogged down in boring lectures. Remember, though, this website is intended for complete beginners, so you might find it a little basic if you already know some of the coding essentials.

Free Websites for Learning to Code

Free coding websites are an excellent way to develop your skills and unlock new opportunities in the world of coding. If you’re keen to jump into a new career as a programmer or coding developer, make sure you check out some of the options above. There’s no doubt you’ll find a site capable of giving you the boost you need.


Featured image via Unsplash.


The post 16 Free Websites for Learning to Code in 2021 first appeared on Webdesigner Depot.

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At a previous job (I won’t tell you which), I had responsibility for a platform of 250,000 lines of C# code and 6 developers as the main architect. Our system was built in its entirety around Azure Functions and Cosmos DB. This was a huge company, with some 30,000 employees around the world, and our CEO got a deal with AWS. At that point we were paying 8,000 EUROs per month for our development environment – Seriously!

Our CEO was smart though, and struck a deal with AWS, probably due to that the company as a whole (I can only imagine) paid millions of EUROs per month for their cloud services in total, and was able to significantly reduce this number by porting « everything » to AWS. At this point we started pondering how to « port » our Azure Functions and Cosmos DB to something we could run in AWS. And yes, we even considered running the Azure Function debugger executable locally in servers inside of AWS – Needless to say, but this was simply suicide, and the whole idea was canned, the project had to be scrapped, and a « brand new AWS lockin project » was initiated – The irony … :/

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So which programming language is best for game development?

C#, C++, or Python?

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In this article, I will share the steps to create a plugin in nopCommerce 4.40 including debugging of plugin install-uninstall and PreparePluginToUninstall methods. To demonstrate this, I am using the visual studio 2019 version 16.9.0. NopCommerce 4.40 has been upgraded to .NET 5 & C# 9 and many other features

In this article, I will create a simple plugin with the install-uninstall without any other features. But, it’s better to understand how the nopCommerce plugin is working and how you can debug the install-uninstall method of nopCommerce. This is because if you’re going to directly develop features, it will create a small problem. So, better we understand it first. Otherwise, you are maybe facing issues like I made a change in my HTML view, but you won’t see the impact on-page.

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