Test de connexion à l'API Google Drive

Client Google créé.

Fichier credentials.json trouvé.

Authentification chargée.

Permission (scope) ajoutée.

Service Drive initialisé.

Tentative de lister les 5 derniers fichiers/dossiers...

❌ Erreur lors du test !

Message d'erreur :

{
  "error": {
    "code": 403,
    "message": "Method doesn't allow unregistered callers (callers without established identity). Please use API Key or other form of API consumer identity to call this API.",
    "errors": [
      {
        "message": "Method doesn't allow unregistered callers (callers without established identity). Please use API Key or other form of API consumer identity to call this API.",
        "domain": "global",
        "reason": "forbidden"
      }
    ],
    "status": "PERMISSION_DENIED"
  }
}