ASP.NET Core - Jimmy Bogard

Activity Enrichment in ASP.NET Core 6.0

Waaaaay back in the ASP.NET Core 3.1 days, I wrote about increasing the cardinality of traces using Tags and Baggage. You could write code in your controllers, filters, or application code to be able to add custom information to traces to help

Dependency Injection

Choosing a ServiceLifetime

A subtle source of errors and less-than-subtle source of frustration is understanding and using service lifetimes appropriately with .NET Core dependency injection. Service lifetimes, while complicated on the surface, can help developers that need to share state across different lifetimes of an application. Typically,

Architecture

Vertical Slice Example Updated to .NET 5

With the release of .NET 5, I wanted to update my Vertical Slice code example (Contoso University) to .NET 5, as well as leverage all the C# 9 goodness. The migration itself was very simple, but updating the dependencies along the way proved to

NServiceBus

End-to-End Integration Testing with NServiceBus

One of the interesting side effects of adding diagnostic events to infrastructure is that you can now "listen in" to what's going on in your applications for black box testing. This can be especially useful in scenarios where you're building on top of a

Microservices

Building End-to-End Diagnostics and Tracing: An Intro

Posts in this series: An IntroTrace ContextDiagnostic EventsOpenTelemetry IntegrationActivity and Span CorrelationVisualization with ExportersUser-Defined Context with Correlation ContextActivitySource and OpenTelemetry 1.0Source Code As microservices introduced (forced) highly complex distributed systems into organizations, the tools required to operate these architectures needed to evolve as

OSS

Contoso University Examples with CQRS, MediatR, AutoMapper and more

I was a bit surprised yesterday to see Scott Hanselman's post on my Contoso University sample app. That application basically takes the traditional Contoso University sample applications (of which there have been many), and try to adapt it to how our "normal"

ASP.NET Core

Migrating Contoso University Example to Razor Pages

A coworker noticed that it looked like Razor Pages were the new "recommended" way of building server-side rendered web applications in ASP.NET Core 2.0. I hadn't paid much attention because at first glance they looked like Web Forms. However, that's