extern crate jsonwebtoken as jwt; extern crate rustc_serialize; use jwt::{encode, decode, Algorithm}; use jwt::errors::{Error}; #[derive(Debug, RustcEncodable, RustcDecodable)] struct Claims { sub: String, company: String } fn main() { let my_claims = Claims { sub: "b@b.com".to_owned(), company: "ACME".to_owned() }; let key = "secret"; let token = match encode(&my_claims, key, Algorithm::HS256) { Ok(t) => t, Err(_) => panic!() // in practice you would return the error }; let claims = match decode::(&token, key.as_ref(), Algorithm::HS256) { Ok(c) => c, Err(err) => match err { Error::InvalidToken => panic!(), // Example on how to handle a specific error _ => panic!() } }; }