Struct HessraContext 

pub struct HessraContext { /* private fields */ }

Builder for creating Hessra context tokens.

Context tokens identify a session and track data exposure (exposure labels) as append-only Biscuit blocks.

Example

use hessra_context_token::HessraContext;
use hessra_token_core::{KeyPair, TokenTimeConfig};

let keypair = KeyPair::new();
let token = HessraContext::new(
    "agent:openclaw".to_string(),
    TokenTimeConfig::default(),
)
.issue(&keypair)
.expect("Failed to create context token");

Implementations

impl HessraContext

pub fn new(subject: String, time_config: TokenTimeConfig) -> Self

Creates a new context token builder.

Arguments

• subject - The session owner identifier (e.g., “agent:openclaw”)
• time_config - Time configuration for token validity

pub fn issue(self, keypair: &KeyPair) -> Result<String, Box<dyn Error>>

Issues (builds and signs) the context token.

The authority block contains:

• context({subject}) - identifies the session owner
• time expiration check

Arguments

• keypair - The keypair to sign the token with

Returns

Base64-encoded Biscuit token