Struct OAuth2Handler 

pub struct OAuth2Handler { /* private fields */ }

OAuth2 authentication handler.

Implementations

impl OAuth2Handler

pub fn new(config: OAuth2Config) -> Result<Self>

Create a new OAuth2 handler.

pub fn authorize_url(&self) -> (String, String, String)

Generate an authorization URL for the OAuth2 flow.

Returns a tuple of (authorization_url, csrf_token, pkce_verifier). The user should be redirected to the authorization URL to approve access.

pub async fn exchange_code( &self, code: String, pkce_verifier: String, ) -> Result<AccessToken>

Exchange an authorization code for an access token.

This should be called after the user approves access and is redirected back to your application with an authorization code.

Arguments

• code - The authorization code received from the OAuth2 callback
• pkce_verifier - The PKCE verifier generated during authorize_url()

Security

The PKCE verifier MUST be the same one generated by authorize_url(). This protects against authorization code interception attacks.

pub async fn refresh_token(&self, refresh_token: String) -> Result<AccessToken>

Refresh an access token using a refresh token.

Arguments

• refresh_token - The refresh token obtained during initial authorization

Example

let handler = OAuth2Handler::new(config)?;
let refresh_token = "existing_refresh_token".to_string();
let new_token = handler.refresh_token(refresh_token).await?;