Function exchange_code 

pub async fn exchange_code(
    params: ExchangeCode,
    http: &dyn HttpClient,
) -> Result<TokenResponse>

Available on non-WebAssembly only.

Exchange authorization code for tokens

This is a server-only function that exchanges an authorization code for access token, refresh token (optional), and ID token (if openid scope).

Example

let http = ReqwestHttpClient::default();

let tokens = exchange_code(ExchangeCode {
    issuer: "https://auth.example.com".into(),
    client_id: "my-client".into(),
    code: "auth_code".into(),
    redirect_uri: "https://app.example.com/callback".into(),
    code_verifier: Some("pkce_verifier".into()),
    client_secret: None, // For public clients
    token_endpoint_auth_method: None,
}, &http).await?;