GET all candidacies         /api/candidacies
GET all themes              /api/themes
GET one question            /api/questions?candidacyId=<CANDIDACY_ID>
GET one question            /api/questions?tagId=<TAG_ID>
POST answser                /api/questions/<QUESTION_ID>?answser=<TRUE/FALSE>&username=<USERNAME>
GET stats                  /api/stats/<USERNAME>