This is an example of two web services: an article-service and a comment-service. The article service is dependent on the comment service.
The http branch solves this dependency by making HTTP requests, assuming that the comment service is on the same machine and its port never changes.
The master branch solves this dependency by creating a sleuth network between the two services.
This codebase is the basis for a tutorial on how to use sleuth: "Service autodiscovery in Go with sleuth".