env('FIREBASE_DATABASE_URL', ''), 'project_id' => env('FIREBASE_PROJECT_ID', ''), 'private_key_id' => env('FIREBASE_PRIVATE_KEY_ID', ''), 'private_key' => env('FIREBASE_PRIVATE_KEY', ''), 'client_email' => env('FIREBASE_CLIENT_EMAIL', ''), 'client_id' => env('FIREBASE_CLIENT_ID', ''), 'auth_uri' => env('FIREBASE_AUTH_URI', 'https://accounts.google.com/o/oauth2/auth'), 'token_uri' => env('FIREBASE_TOKEN_URI', 'https://oauth2.googleapis.com/token'), 'auth_provider_x509_cert_url' => env('FIREBASE_AUTH_PROVIDER_CERT_URL', 'https://www.googleapis.com/oauth2/v1/certs'), 'client_x509_cert_url' => env('FIREBASE_CLIENT_CERT_URL', ''), ];