This is a project I'm using to learn JAX-RS in Java. It's not a fantastic example of how to design an API. Code follows the examples from the Javabrains course
[{
"estimatePlaytimeMinutes": 0,
"lastAddedDate": "2018-09-07",
"maxNumberOfPlayers": 0,
"minNumberOfPlayers": 0,
"name": "Terraforming Mars",
"owner": "Mat"
}]