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Bad Gateway error on App Service deployment

Our deployment ran smooth for weeks. But suddenly and without warning and only for one app, the “Bad Gateway” error appeared when deploying Azure DevOps to Azure App Service.

Class vs. Struct performance in .NET

In addition to classes that represent reference types, there are also structs that represent value types.

But how do the two different structures behave in terms of performance and when can a class or a struct be used at all?

.NET Updates September 2021

Heute hat Microsoft die .NET Updates von September 2021 auf ihrem Blogpost veröffentlicht.

• OS Lifecycle update: Aktualisierung der Docker Container

.NET September 2021 Updates – 5.0.10 and 3.1.19

AssemblyMetadata - Build Time with Source Code Generators

.NET has for some time source code generators : a mechanism with which it is possible to generate source code at compile time, as has been known, for example, with DSL approaches since ~2005.

.NET Updates August 2021

Heute hat Microsoft die .NET Updates von August 2021 auf ihrem Blogpost veröffentlicht.

• Fix CVE-2021-34485: .NET Core Information Disclosure Vulnerability
• Fix CVE-2021-26423: .NET Core Denial of Service Vulnerability
• Fix CVE-2021-34532: ASP.NET Core Information Disclosure Vulnerability

Hinweis: in diesen Blog Post hat Microsoft auch erneut .NET Core 2.1 End of life erwähnt!

.NET Updates Juli 2021

Heute hat Microsoft die .NET Updates von Juli 2021 auf ihrem Blogpost veröffentlicht.

• Windows Arm64

.NET July 2021 Updates – 5.0.8 and 3.1.17

Parse HTTP User Agents with ASP.NET Core

In my last blog post I shared why we wrote our own user agent parser (mycsharp/HttpUserAgentParser ) in .NET (reason: performance).

.NET Updates Juni 2021

Gestern hat Microsoft die .NET Updates von Juni 2021 auf ihrem Blogpost veröffentlicht.

• CVE-2021-31957: ASP.NET Denial of Service Vulnerability Fix

.NET June 2021 Updates – 5.0.7 and 3.1.16

Fast Parsing HTTP User Agents with .NET

While analyzing nearly 120 million requests, we noticed that one thing was dragging down our performance: parsing user agents for detecting bots and search engines.

Plugin Mechanism with Parts in ASP.NET Core

A plugin-like mechanism is already built into ASP.NET Core and is called Parts or Application Parts .

In principle, it is a discovery mechanism to be able to use Razor or MVC components such as controllers from other assemblies, for example. Therefore, Application Parts are also particularly well suited for Domain Driven Design (DDD) separation of application components in ASP.NET Core. A DDD abstraction is the most used way of these Application Parts in my applications and architectures.