rust-goauth [[docs](https://docs.rs/goauth)]

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

```rust,no_run

[macro_use]

extern crate log;

use goauth::auth::JwtClaims; use goauth::scopes::Scope; use goauth::{gettoken, gettokenblocking, GoErr}; use goauth::credentials::Credentials; use smpljwt::{RSAKey, Jwt};

fn main() -> Result<(), GoErr>{ let token_url = "https://www.googleapis.com/oauth2/v4/token"; let iss = ""; // https://developers.google.com/identity/protocols/OAuth2ServiceAccount

let credentials = Credentials::fromfile("dummycredentialsfilefortests.json").unwrap(); let claims = JwtClaims::new(String::from(iss), &Scope::DevStorageReadWrite, String::from(tokenurl), 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 = gettokenblocking(&jwt, &credentials)?;

Ok(())

} ```