make req with http module

makeReq.ts

export const makeReq = (url: string | undefined, data = '', headers: any = {}, timeout = 5000): Promise<string> => {
    if (!url) {
        throw 'url must be defined!';
    }
    const contentLength = Buffer.byteLength(data, 'utf-8');

    headers['Content-Length'] = contentLength;
    headers['Content-Type'] = 'text/xml; charset=utf-8';
    headers['Connection'] = 'keep-alive';
    const uri = new URL(url);
    const options: http.RequestOptions = {
        hostname: uri.hostname,
        host: uri.hostname,
        port: uri.port,
        path: uri.pathname,
        method: 'POST',
        headers,
        // rejectUnauthorized: false,
        timeout,
    };
    return new Promise((resolve, reject): void => {
        const response: string[] = [];
        const decoder = new StringDecoder('utf8');

        if (options.headers && lastCookies.length > 0) {
            options.headers['Cookie'] = lastCookies.map(c=>c.substr(0, c.indexOf(';'))).reduce((a, b) => a + '; ' + b);
        }

        const executer = (options: any, cb: (response: http.IncomingMessage) => void) => {
            const req = http.request(options, (res) => {
                if (req.aborted) return reject('aborted');
                cb(res);
            });
            req.on('error', (err) => reject(err));
            req.write(Buffer.from(data));
            req.end();
        };

        const reqCallback = (res: http.IncomingMessage) => {
            res.on('data', (chunk) => {
                const str = decoder.write(chunk);
                response.push(str);
                // resolve(chunk.toString("utf8"));
            });
            res.on('end', () => {
                decoder.end();
                resolve(response.join(''));
            });
            res.on('error', (err) => reject(err));
        };
        executer(options, reqCallback);
    });
};