Using iconv-lite to do character conversion of HTTP requests

iconvLiteExample.js

const iconv = require ("iconv-lite");
const request = require ("request");
const utils = require ("daveutils");

var feedUrl = "https://www.presseportal.de/rss/dienststelle_110972.rss2";

function getCharset (httpResponse) {
	var contentType = httpResponse.headers ["content-type"];
	if (contentType !== undefined) {
		var encoding = utils.trimWhitespace (utils.stringNthField (contentType, ";", 2));
		if (encoding.length > 0) {
			var charset = utils.trimWhitespace (utils.stringNthField (encoding, "=", 2));
			console.log ("getCharset: charset == " + charset);
			return (charset);
			}
		}
	return (undefined); //no charset specified
	}
var options = { 
	url: feedUrl,
	encoding: null
	};
request (options, function (err, response, theBuffer) {
	if (err) {
		console.log (err.message);
		}
	else {
		if (response.statusCode != 200) {
			console.log (response.statusCode);
			}
		else {
			var theCharset = getCharset (response);
			console.log (theCharset);
			var s = iconv.decode (theBuffer, theCharset);
			console.log (s);
			}
		}
	});