Webserver written in Java for displaying Doppelkopf results (or any other 4 player game) stored in an external database.
Doppelkopf-Server includes a REST API for communication with e.g. an app. New results can be added via this REST API or via the interface on a webpage.
This server is not properly secured. It has known vulnerabilies. Only use it if you don't really care about the data you use.