curl --request PUT http://localhost:8000/api/person/1/online
curl --request PUT http://localhost:8000/api/person/1/offline
+* Search a user with a keyword set to isabelle:
+curl --request GET http://localhost:8000/api/person/search?keyword=isabelle
+
* Show a user with id 1:
curl --request GET http://localhost:8000/api/person/1