# JWT
A JSON Web Token library.
[Documentation](http://mikkyang.github.io/rust-jwt/doc/jwt/index.html)
## Installation
Add this to your `Cargo.toml`:
```toml
[dependencies]
jwt = "0.1.0"
```
and this to your crate root:
```rust
extern crate jwt;
```
## Example
```rust
extern crate crypto;
extern crate jwt;
use std::default::Default;
use crypto::sha2::Sha256;
use jwt::{
Claims,
Registered,
Token,
}
fn new_token(user_id: &str, password: &str) -> Option<String> {
// Dummy auth
if password != "password" {
return None
}
let header = Default::default();
let claims = Registered {
iss: Some("mikkyang.com".into()),
sub: Some(user_id.into()),
..Default::default()
};
let token = Token::new(header, Claims::new(claims));
token.signed(b"secret_key", Sha256::new()).ok()
}
fn login(token: &str) -> Option<String> {
let token = Token::parse(token).unwrap();
if token.verify(b"secret_key", Sha256::new()) {
token.claims.reg.sub
} else {
None
}
}
fn main() {
let token = new_token("Michael Yang", "password").unwrap();
let logged_in_user = login(&*token).unwrap();
assert_eq!(logged_in_user, "Michael Yang");
}
```