mylloon.fr/src/routes/not_found.rs

use actix_web::{HttpResponse, Responder};
use askama::Template;

use crate::template::render_html;

pub async fn page() -> impl Responder {
    HttpResponse::NotFound().body(get_page())
}

#[derive(Template)]
#[template(path = "404.html")]
struct Error404Template {}

pub fn get_page() -> std::string::String {
    render_html(&Error404Template {})
}