[
    {
        "username": "mgramain",
        "password": "bonjour",
        "email": "maelgramain@etudiant.univ-rennes1.fr",
        "role": "admin"
    },
    {
        "username": "john35",
        "password": "R139OO",
        "email": "john35@gmail.com",
        "role": "user"
    }
]