Struct JwtConfig 

pub struct JwtConfig {
    pub client_id: String,
    pub client_secret: String,
    pub public_key_id: String,
    pub private_key_pem: Vec<u8>,
    pub passphrase: Option<String>,
    pub enterprise_id: String,
    pub user_id: Option<String>,
    pub token_url: Option<String>,
}

JWT server auth config — the fields Box’s box_config.json carries. Set exactly one subject: enterprise_id for the service account, or user_id to act as a managed user.

Fields

client_id: String

client_secret: String

public_key_id: String

The publicKeyID from the app’s box_config.json.

private_key_pem: Vec<u8>

The RSA private key PEM (optionally passphrase-encrypted).

passphrase: Option<String>

The passphrase for an encrypted private_key_pem, if any.

enterprise_id: String

user_id: Option<String>

Optional: act as a managed user instead of the enterprise service account.

token_url: Option<String>

Optional: defaults to Box’s token endpoint (custom deployments).