Luciano Mammino PRO
Cloud developer, entrepreneur, fighter, butterfly maker! #nodejs #javascript - Author of https://www.nodejsdesignpatterns.com , Founder of https://fullstackbulletin.com
My first Rust crate: jwtinfo
Luciano Mammino - @loige
06-04-2021
Let me introduce myself...
I'm Luciano (🇮🇹🍕🍝) 👋
Senior Architect @ fourTheorem (Dublin 🇮🇪) 👨💻
Co-Author of Node.js Design Patterns 👉
We are business focused technologists that deliver.
Accelerated Serverless | AI as a Service | Platform Modernisation
Do you want to work with us?
eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJoZWxsbyI6IlJ1c3QgRHVibGluIn0.EhyqhHxv1EPe2JAMzCIHZ0blyZRN3nsoVHuhwF8DdM0
Meet a Json Web Token (JWT)
eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJoZWxsbyI6IlJ1c3QgRHVibGluIn0.EhyqhHxv1EPe2JAMzCIHZ0blyZRN3nsoVHuhwF8DdM0
eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJoZWxsbyI6IlJ1c3QgRHVibGluIn0.EhyqhHxv1EPe2JAMzCIHZ0blyZRN3nsoVHuhwF8DdM0
eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJoZWxsbyI6IlJ1c3QgRHVibGluIn0.EhyqhHxv1EPe2JAMzCIHZ0blyZRN3nsoVHuhwF8DdM0
Header: { "alg": "HS256", "typ": "JWT" }
Base64Url + JSON
eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJoZWxsbyI6IlJ1c3QgRHVibGluIn0.EhyqhHxv1EPe2JAMzCIHZ0blyZRN3nsoVHuhwF8DdM0
Payload: { "hello": "Rust Dublin" }
Base64Url + JSON
eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJoZWxsbyI6IlJ1c3QgRHVibGluIn0.EhyqhHxv1EPe2JAMzCIHZ0blyZRN3nsoVHuhwF8DdM0
Signature: just some bytes™️
This lovely stuff is used to "transfer claims" which means "for security"
... which means "I want to look into these every time I see one!"
Meet jwtinfo
cargo install jwtinfo
DEMO
/me prays the demo gods 🙏
eyJraWQiOiIxZTlnZGs3IiwiYWxnIjoiUlMyNTYifQ.ewogImlzcyI6ICJodHRwOi8vc2VydmVyLmV4YW1wbGUuY29tIiwKICJzdWIiOiAiMjQ4Mjg5NzYxMDAxIiwKICJhdWQiOiAiczZCaGRSa3F0MyIsCiAibm9uY2UiOiAibi0wUzZfV3pBMk1qIiwKICJleHAiOiAxMzExMjgxOTcwLAogImlhdCI6IDEzMTEyODA5NzAsCiAibmFtZSI6ICJKYW5lIERvZSIsCiAiZ2l2ZW5fbmFtZSI6ICJKYW5lIiwKICJmYW1pbHlfbmFtZSI6ICJEb2UiLAogImdlbmRlciI6ICJmZW1hbGUiLAogImJpcnRoZGF0ZSI6ICIwMDAwLTEwLTMxIiwKICJlbWFpbCI6ICJqYW5lZG9lQGV4YW1wbGUuY29tIiwKICJwaWN0dXJlIjogImh0dHA6Ly9leGFtcGxlLmNvbS9qYW5lZG9lL21lLmpwZyIKfQ.rHQjEmBqn9Jre0OLykYNnspA10Qql2rvx4FsD00jwlB0Sym4NzpgvPKsDjn_wMkHxcp6CilPcoKrWHcipR2iAjzLvDNAReF97zoJqq880ZD1bwY82JDauCXELVR9O6_B0w3K-E7yM2macAAgNCUwtik6SjoSUZRcf-O5lygIyLENx882p6MtmwaL1hd6qn5RZOQ0TLrOYu0532g9Exxcm-ChymrB4xLykpDj3lUivJt63eEGGN6DH5K6o33TcxkIjNrCD4XB1CKKumZvCedgHHF3IAK4dVEDSUoGlH9z4pP_eWYNXvqQOjGs-rDaQzUHl6cQQWNiDpWOl_lxXjQEvQ
Source code
Give it a ⭐️, will ya?
I got a review from Tim McNamara 🤩
loige.link/jwtinfo-review
So many things
to fix here...
... and I learned a lot of cool stuff.
For instance, if you want to accept "anything string-like"
fn is_hello<T: AsRef<str>>(s: T) {
assert_eq!("hello", s.as_ref());
}
let s = "hello";
is_hello(s);
let s = "hello".to_string();
is_hello(s);... yeah, I just wanted to put some actual Rust code in this talk!
... or convert a string to anything else!
impl std::str::FromStr for Token {
type Err = JWTParsePartError;
fn from_str(s: &str) -> Result<Self, Self::Err> {
parse(s)
}
}
// ...
let token = "eyJhbGciOiJIUzI1...".parse::<jwt::Token>().unwrap();... yeah, some more Rust code in this talk!
THANK YOU! 😋
Special thanks to @StefanoAbalsamo for starting the Rust learning journey and building jwtinfo with me!
Cover Picture by Silas Köhler on Unsplash
My first Rust crate: jwtinfo
By Luciano Mammino
My first Rust crate: jwtinfo
In this short talk, I will illustrate my first Rust crate jwtinfo (https://crates.io/crates/jwtinfohttps://crates.io/crates/jwtinfo which allows to easily debug a JSON Web Token. I will also explain what I learned while building this project and some of the pain points I had to face.
