Function httpRequest

webUi/scripts.js:75–95

(method, url, { async = true, body, headers = {}, onload, onerror } = {})

}

function httpRequest(method, url, { async = true, body, headers = {}, onload, onerror } = {}) {
    const xhr = new XMLHttpRequest();
    if (typeof onload === "function") {
        xhr.onload = () => onload(xhr);
    }
    xhr.onerror = () => {
        if (typeof onerror === "function") {
            onerror(xhr);
        } else {
            console.error("Network error or request failure.");
        }
    };
    xhr.open(method, url, async);
    Object.keys(headers).forEach((header) => xhr.setRequestHeader(header, headers[header]));
    if (body !== undefined && body !== null) {
        xhr.send(body);
    } else {
        xhr.send();
    }
    return xhr;
}

function isNullOrEmpty(value) {
    return value === null || value === "";