Function seed::fetch::fetch

pub fn fetch<S: BuildHasher>(
    method: Method,
    url: &str,
    payload: Option<String>,
    headers: Option<HashMap<&str, &str, S>>,
    cl: impl FnMut(JsValue)
) -> Promise

A wrapper over web_sys’s fetch api, to simplify code https://rustwasm.github.io/wasm-bindgen/examples/fetch.html