var request_options = {
        url:     options.url,
        timeout: options.timeout,
        header: options.header,
        method: options.method,
        body: options.body
    }
 if (!options.no_proxy) {
        request_options.proxy = "http://" + this.proxy.getProxy();
    }
request(request_options, function (error, response, body) {
        console.log(error);
        console.log("body : ",body);
 ..............
});