If App Insights is not showing any data for a .NET 6 (or 5) web app, configure it within Visual Studio

It is relatively easy to remove the use of a Startup.cs file after converting a web project from .NET 5.0 to .NET 6.0. This post shows how I did it.

I have just updated this site from .NET 5.0 (apart from an associated Azure function which was still .NET Core 3.1) to .NET 6.0 (for both the site and the function).

As mentioned in this article, updating this from .NET Core 3.1 to .NET 5.0 was quite straightforward.

If you look at a .NET 5.0 App Service (website) in the Azure portal, you will currently (3 Feb 2021) see that the Applications Insight link in the left hand menu is disabled, with a tooltip when you hover over it saying that Application Insights is not yet supported for ...

A quick note to warn users of Microsoft's Azure functions: I have quite often found that the Monitor facility misses out showing some recent function runs. Querying the Application Insights logs for traces, requests and exceptions is more reliable.

A quick blog post about migrating from .NET Core 3.1 to .NET 5.0. I have found this reasonably straightforward in a number of projects, with some exceptions: There is still no .NET 5.0 version of Azure functions so they have to remain .NET Core 3.1 for the time being in ...