var sendPromise = function (res, callback) {    var options = {        hostname: settings.Ip,        port: settings.Port,        path: ‘‘,        method: ‘GET‘,        headers: res.req.headers    };    options.path = res.req.originalUrl;    options.method = res.req.method;    var body = res.req.body;    var request = http.request(options, function (response) {        var result = ‘‘;        response.setEncoding(‘utf8‘);        response.on(‘data‘, function (chunk) {            result += chunk;        });        response.on(‘end‘, function () {            callback(null, result);        });    });    request.on(‘error‘, function (e) {        callback(‘path:‘ + options.path + ‘;‘ + e, null);    });    if (body && options.method == ‘POST‘) {        var postBody = {};        for (var k of Object.keys(body)) {            postBody[k] = body[k];        }        request.write(postBody);    }    request.end();}