35 releases (16 breaking)
0.17.0-alpha.1 | Jun 17, 2024 |
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0.15.0 | Jun 17, 2024 |
0.14.0 | Oct 17, 2023 |
0.13.1 | Jul 20, 2022 |
0.1.2 | Dec 29, 2016 |
#132 in Web programming
329,254 downloads per month
Used in 95 crates
(12 directly)
59KB
1K
SLoC
rust-goauth [docs]
Crate for using OAuth 2.0 with Server to Server Applications for Google Cloud Engine, with tentative support for all supported Scopes. Supports sync or async requests via Futures.
Provides a serialisable Token struct for use in other applications that require authenticated interactions with Google Cloud.
Usage
#[macro_use]
extern crate log;
use goauth::auth::JwtClaims;
use goauth::scopes::Scope;
use goauth::{get_token, get_token_blocking, GoErr};
use goauth::credentials::Credentials;
use goauth::fetcher::TokenFetcher;
use smpl_jwt::{RSAKey, Jwt};
use time::Duration;
fn main() -> Result<(), GoErr>{
let token_url = "https://www.googleapis.com/oauth2/v4/token";
let iss = "<some-iss>"; // https://developers.google.com/identity/protocols/OAuth2ServiceAccount
let credentials = Credentials::from_file("dummy_credentials_file_for_tests.json").unwrap();
let claims = JwtClaims::new(String::from(iss),
&[Scope::DevStorageReadWrite],
String::from(token_url),
None, None);
let jwt = Jwt::new(claims, credentials.rsa_key().unwrap(), None);
// Use async
let token = async {
match get_token(&jwt, &credentials).await {
Ok(token) => token,
Err(e) => panic!(e)
}
};
// Or sync
let token = get_token_blocking(&jwt, &credentials)?;
// Token provides `access_token` method that outputs a value that should be placed in the Authorization header
// Or use the TokenFetcher abstraction which will automatically refresh tokens
let fetcher = TokenFetcher::new(jwt, credentials, Duration::new(1, 0));
let token = async {
match fetcher.fetch_token().await {
Ok(token) => token,
Err(e) => panic!(e)
}
};
// Now a couple seconds later we want the token again - the initial token is cached so it will re-use
// the same token, saving a network trip to fetch another token
let new_token = async {
match fetcher.fetch_token().await {
Ok(token) => token,
Err(e) => panic!(e)
}
};
assert_eq!(token, new_token);
// Now say the token has expired or is close to expiring ("close" defined by the configurable
// `refresh_buffer` parameter) at this point "later in the program." The next call to
// `fetch_token` will notice this and automatically fetch a new token, cache it, and return it.
let new_token = async {
match fetcher.fetch_token().await {
Ok(token) => token,
Err(e) => panic!(e)
}
};
assert_ne!(token, new_token);
Ok(())
}
Dependencies
~5.5–8.5MB
~160K SLoC