oauth-lib 0.1.1

Rust library to deal with OAuth flows
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36

//! Refresh Access Token flow helper, as defined in the
//! [RFC6749](https://datatracker.ietf.org/doc/html/rfc6749#section-6)

use oauth2::{basic::BasicClient, RefreshToken, TokenResponse};

use super::{Error, Result};

/// OAuth 2.0 Refresh Access Token flow builder. The builder is empty
/// for now but scopes will be added in the future. This flow exchange
/// a refresh token for a new pair of access token and maybe a refresh
/// token.
#[derive(Debug, Default)]
pub struct RefreshAccessToken;

impl RefreshAccessToken {
    pub fn new() -> Self {
        Self
    }

    pub async fn refresh_access_token(
        &self,
        client: &BasicClient,
        refresh_token: impl ToString,
    ) -> Result<(String, Option<String>)> {
        let res = client
            .exchange_refresh_token(&RefreshToken::new(refresh_token.to_string()))
            .request_async(oauth2::reqwest::async_http_client)
            .await
            .map_err(Error::RefreshAccessTokenError)?;

        let access_token = res.access_token().secret().to_owned();
        let refresh_token = res.refresh_token().map(|t| t.secret().clone());

        Ok((access_token, refresh_token))
    }
}