ASP.NET Core Archives - Jonathan Crozier

Updating YARP configuration at runtime

YARP (Yet Another Reverse Proxy) is a flexible .NET reverse proxy library that supports loading configuration from multiple custom sources and provides the means to reload its configuration at runtime; no app restart required. In my previous Configuring YARP Routes article, I covered the key route configuration scenarios that you will most likely need to…

Configuring YARP Routes

InAPIs

YARP (Yet Another Reverse Proxy) is a reverse proxy library for .NET that has been built with configurability in mind, and there are a ton of customisation options available for developers. In my previous articles, I explored Getting started with YARP and Transforming requests and responses with YARP. In this article, I will cover some…

Transforming requests and responses with YARP

InAPIs

YARP (Yet Another Reverse Proxy) is a comprehensive reverse proxy library developed by Microsoft for .NET that continues to see a strong level of adoption. In my previous post, I explored getting started with YARP, walking through how to set up and run an ASP.NET Core web application that uses YARP to intercept and route…

Getting started with YARP

InAPIs

YARP (Yet Another Reverse Proxy) is a versatile and highly performant reverse proxy library for .NET. If you’re a .NET developer seeking to develop a web application that utilises a reverse proxy to enable things like load balancing, caching and SSL termination, and you require a great degree of customisation, YARP is the ideal solution…

Styling Blazor child components with CSS Isolation: What you really need to know

InWeb

One of the most useful, yet often overlooked, aspects of Blazor’s CSS isolation support is the ability to style child components. At first glance, it may appear that isolated CSS can only be applied to the component to which it is attached; however, with a little help from the ::deep pseudo-selector (the “deep combinator”), it’s…

Treat Blazor component Warnings as Errors: Found markup element with unexpected name

InWeb

When developing Blazor applications, certain issues with component markup are flagged as warnings by default that can have a substantial impact if undetected. One of these cases is warning code RZ10012, which is raised when a Blazor component cannot be found due to a missing using directive within the Razor file. In my opinion, I…

Enable ahead-of-time (AOT) compilation for Blazor WebAssembly

InWeb

Blazor WebAssembly facilitates the development of SPAs (Single-page applications) that run in the browser using C# instead of JavaScript as the primary programming language. Executing C# code in the browser is a rather neat trick, made possible via the revolutionary WebAssembly technology which is an open web standard. However, the default mechanism employed by Blazor…

.NET 8 Blazor MSAL Error – There was an error trying to log you in: ‘”undefined” is not valid JSON’

InWeb

When developing a Blazor WebAssembly application that uses the MSAL (Microsoft Authentication Library) for .NET packages, you may encounter an error message similar to the following after trying to log in. There was an error trying to log you in: ‘”undefined” is not valid JSON’ The above error message is usually noticed after upgrading a…

Communicating with ASP.NET Core hosted services from API endpoints using Channels

InAPIs Web

Hosted services are a powerful .NET feature, providing a robust mechanism for executing long-running background tasks in different types of applications. Given the flexible nature of .NET, such applications could be running on client devices, on-premise servers, or the cloud, depending on the particular use case. When it comes to ASP.NET Core, hosted services are…

ASP.NET Core runtime exception: Could not load type ‘Microsoft.IdentityModel.Json.JsonConvert’

InAPIs Web

When developing ASP.NET Core web applications, it is common to interact with JWTs (JSON Web Tokens). Quite often you will want to validate JWTs and possibly even generate your own JWTs to secure API endpoints. However, it’s not always plain sailing when it comes to software development. After updating certain Microsoft NuGet packages to newer…

Tag: ASP.NET Core