How do I enable Application Insights server telemetry on WebApi project that uses OWIN?

Question

We are having a bunch of problems (read long response times) with a couple of projects in production and wanted to see exactly what was happening on the server. I then proceeded

Answer 1

This is an old question but it was still in the top 3 results on searches for "web api application insights owin". After lots of searching and not a lot of answers that didn't require us to write our own middleware or explictly instrumenting everything. We came across an extension package that made things super simple:

Here's the Github Repository for it and the associated NuGet Package

For those too lazy to look at the links, all that was needed to be added was:

public class Startup
{
    public void Configuration(IAppBuilder app)
    {
        app.UseApplicationInsights();

        // rest of the config here...
    }
}

and add this to your ApplicationInsights.Config