Creating a custom endpoint visualization graph: Visualizing ASP.NET Core 3.0 endpoints using GraphvizOnline - Part 4

In this series, I've been laying the groundwork for building a custom endpoint visualization graph, as I showed in my first post. This graph shows the different parts of the endpoint routes: literal values, parameters, verb constraints, and endpoints that generate a result: In this post I show how you can create an endpoint graph like this for your own application, by creating a custom DfaGraphWriter.