Responses and Redirects

Extractors provide an easy way to access request data inside server functions. Leptos also provides a way to modify the HTTP response, using the ResponseOptions type (see docs for Actix or Axum) types and the redirect helper function (see docs for Actix or Axum).


ResponseOptions is provided via context during the initial server rendering response and during any subsequent server function call. It allows you to easily set the status code for the HTTP response, or to add headers to the HTTP response, e.g., to set cookies.

pub async fn tea_and_cookies() -> Result<(), ServerFnError> {
	use actix_web::{cookie::Cookie, http::header, http::header::HeaderValue};
	use leptos_actix::ResponseOptions;

	// pull ResponseOptions from context
	let response = expect_context::<ResponseOptions>();

	// set the HTTP status code

	// set a cookie in the HTTP response
	let mut cookie = Cookie::build("biscuits", "yes").finish();
	if let Ok(cookie) = HeaderValue::from_str(&cookie.to_string()) {
		res.insert_header(header::SET_COOKIE, cookie);


One common modification to an HTTP response is to redirect to another page. The Actix and Axum integrations provide a redirect function to make this easy to do. redirect simply sets an HTTP status code of 302 Found and sets the Location header.

Here’s a simplified example from our session_auth_axum example.

#[server(Login, "/api")]
pub async fn login(
    username: String,
    password: String,
    remember: Option<String>,
) -> Result<(), ServerFnError> {
	// pull the DB pool and auth provider from context
    let pool = pool()?;
    let auth = auth()?;

	// check whether the user exists
    let user: User = User::get_from_username(username, &pool)
        .ok_or_else(|| {
            ServerFnError::ServerError("User does not exist.".into())

	// check whether the user has provided the correct password
    match verify(password, &user.password)? {
		// if the password is correct...
        true => {
			// log the user in

			// and redirect to the home page
		// if not, return an error
        false => Err(ServerFnError::ServerError(
            "Password does not match.".to_string(),

This server function can then be used from your application. This redirect works well with the progressively-enhanced <ActionForm/> component: without JS/WASM, the server response will redirect because of the status code and header. With JS/WASM, the <ActionForm/> will detect the redirect in the server function response, and use client-side navigation to redirect to the new page.