returnResponse::errorResponse('{ "message" : "Unsupported endpoint, please visit the API documentation at https://gvipers.imt-lille-douai.fr/QVrel/projet-cdaw/tree/master/doc."}');
returnResponse::errorResponse('{ "message" : "Please visit the API documentation at https://gvipers.imt-lille-douai.fr/QVrel/projet-cdaw/tree/master/doc."}');