eeg_certs/backend/src/cors.rs

use rocket::fairing::{Fairing, Info, Kind};
use rocket::http::Header;

pub struct Cors;

#[rocket::async_trait]
impl Fairing for Cors {
    fn info(&self) -> Info {
        Info {
            name: "CORS",
            kind: Kind::Response,
        }
    }

    #[cfg(debug_assertions)]
    async fn on_response<'r>(
        &self,
        _: &'r rocket::Request<'_>,
        response: &mut rocket::Response<'r>,
    ) {
        response.set_header(Header::new("Access-Control-Allow-Origin", "*"));
        response.set_header(Header::new(
            "Access-Control-Allow-Methods",
            "POST, GET, DELETE, OPTIONS",
        ));
        response.set_header(Header::new("Access-Control-Allow-Headers", "Content-Type"));
    }
}