Just because you're using Web Forms, it doesn't mean that you are stuck in a technical time-warp. If you want to liven up a site with new features using Ajax and libraries such as jQuery, Bootstrap or Knockout.JS, then you can always integrate a Web API layer into a...

In a previous article we’ve introduced how authentication works in Blazor WebAssembly and we’ve seen a simple example on how to create a Blazor client, implement the login flow via Identity Server 4 and retrieve an access token to call a protected Web API.   However, every real-world application will...

The new Blazor WebAssembly 3.2.0 includes support to client side authentication, which makes relatively simple to implement OpenID Connect and OAuth2 in your single page application. In other words, it means that we can finally build applications with the most recent industry standards in terms of security, enabling complex authentication...

What is a Windows Service Enables you to create long-running executable applications that run in their own windows session. Can be automatically started when the computer boots, can be paused and restarted without any user interaction. Easily installable by running the command line utility InstallUtil.exe and passing the path to...

We’ll learn about the use of SignalR to build real-time functionality in your ASP.NET Core web apps. SignalR can also be used to add real-time functionality to desktop applications, mobile apps and Azure Functions. What is SignalR? SignalR has been around for 5+ years now, allowing ASP .NET developers to...

Are you wondering how to make your content more clickable, shareable, and noticeable on social media? Open Graph meta tags are the solution. What are Open Graph meta tags? Open Graph meta tags are snippets of code that control how URLs are displayed when shared on social media. They’re part...

Microservices are the face of the future. Organizations are keen to adapt to Microservices, either by creating a new setup or by transforming monolithic applications into Microservices. Though the inclination towards migrating to Microservices quite high, how to approach the same is yet unclear to many. On a basic...

Why Share Code Across Projects/Assemblies? There are multiple reasons why you may want to share code between multiple projects/assemblies. Code reuse: This should be pretty self-explanatory. You shouldn’t have to rewrite the same code more than once. Placing reusable code in a shared library enables code reuse. Multiple front-ends: In...

Unless you’re perfect 100% of the time (who is?), you’ll most likely have errors in your code. If your code doesn’t build due to compilation errors, you can probably correct that by fixing the offending code. But if your application encounters runtime errors while it’s being used, you may not...

The Generic Host Builder in ASP .NET Core was introduced in v2.1, but only meant for non-HTTP workloads. However, it has now replaced the Web Host Builder as of v3.0 in 2019. Generic Host Builder in ASP .NET Core 3.x History Lesson: Generic Host Builder in 2.x So, if the...

Before Tag Helpers were available, you would have to use HTML Helper methods to create forms and their elements in a ASP .NET Core views. This meant that your form could look something like this: @using (Html.BeginForm()) {     <input /> } With the introduction of Tag Helpers, you can...

In my 2018 series, we covered EF Core Migrations to explain how to add, remove and apply Entity Framework Core Migrations in an ASP .NET Core web application project. In this article, we’ll continue to look at the newer 2020 NetLearner project, to identify entities represented by C# model classes...

In this article, we’ll explore several options for deploying an ASP .NET Core web app to Azure App Service in the cloud. From the infamous Right-Click-Publish to fully automated CI/CD, you’ll learn about the latest Deployment Center option in the Azure Portal for App Service for web apps. NOTE: If...

In this article, we’ll continue to look at the (in-progress) NetLearner application, which was generated using multiple ASP.NET Core web app project (3.1) templates. In previous releases, the template made it very easy for you to store cookies and display a cookie policy. However, the latest version doesn’t include cookie...

In my 2019 A-Z series, I covered Blazor for ASP.NET Core while it was still experimental. As of ASP.NET Core 3.1, server-side Blazor has now been released, while client-side Blazor (currently in preview) is expected to arrive in May 2020. This post will cover server-side Blazor, as seen in NetLearner....

Authentication and Authorization are two different things, but they also go hand in hand. Think of Authentication as letting someone into your home and Authorization as allowing your guests to do specific things once they’re inside (e.g. wear their shoes indoors, eat your food, etc). In other words, Authentication lets...

A is for Authentication & Authorization B is for Blazor Full-Stack Web Dev C is for Cookies and Consent D is for Deploying to Azure App Service E is for EF Core Relationships F is for Forms & Fields G is for Generic Host Host Builder H is for Handling Errors I is for IIS Hosting J is for JavaScript, HTML/CSS & Static Files K is for Key Vault L is for Logging M is for Middleware N is for .NET 5.0, VS2019 Preview and C# 9.0 O is for Organizational Authentication P is for Production Tips Q is for Query Tags R is for Razor Pages S is for SignalR T is for Tag Helper Authoring U is for Unit Testing V is for Validation W is for Worker Service X is for XML + JSON Output for Web APIs Y is for YAML-defined CI/CD Z is for Zero-Downtime Web Apps

Key Takeaways Developers keep moving to Single Page Applications (SPAs), though client-side development doesn’t mean you need a SPA in every case. There are several ways to use SPA frameworks with ASP.NET Core, including middleware, directory-based connection, or integration into your project. Middleware and directory-based methods come with some constraints,...

In this blog, I am going to provide a walkthrough on developing REST APIs using ASP.NET Core 3.1, connecting with existing databases using Entity Framework, creating a JWT token, and securing APIs. I am going to develop a sample application for an inventory REST service with basic operations. Table of...