NodeJS HTTP Server

getQueryParams.js

const getQueryParams = function (req) {
    let query = req.url.split('?');
    let queryParams = {};
    if (query.length >= 2) {
        let params = query[1].split('&');
        params.forEach((keyValuePair) => {
            try {
                let key = keyValuePair.split('=')[0];
                let value = keyValuePair.split('=')[1];
                queryParams[key] = value;
            } catch (err) {
                queryParams[key] = '';
            }
        });
    }
    return queryParams;
}

requestHandler.js

const requestHandler = (req, res) => {
    if (req.url === '/favicon.ico') {
        res.writeHead(200, {
            'Content-Type': 'image/x-icon'
        });
        return res.end();
    }

    const reqQueryParams = getQueryParams(req);
    res.writeHead(200, {
        'Content-Type': 'text/plain'
    });
    res.end(`Greetings from NodeJS server to ${reqQueryParams.name} ${reqQueryParams.surname}`);
}

server.js

const http = require('http'),
    port = process.env.PORT || 8080;

const getQueryParams = function (req) {
    let query = req.url.split('?');
    let queryParams = {};
    if (query.length >= 2) {
        let params = query[1].split('&');
        params.forEach((keyValuePair) => {
            try {
                let key = keyValuePair.split('=')[0];
                let value = keyValuePair.split('=')[1];
                queryParams[key] = value;
            } catch (err) {
                queryParams[key] = '';
            }
        });
    }
    return queryParams;
}

const requestHandler = (req, res) => {
    if (req.url === '/favicon.ico') {
        res.writeHead(200, {
            'Content-Type': 'image/x-icon'
        });
        return res.end();
    }

    const reqQueryParams = getQueryParams(req);
    res.writeHead(200, {
        'Content-Type': 'text/plain'
    });
    res.end(`Greetings from NodeJS server to ${reqQueryParams.name} ${reqQueryParams.surname}`);
}

http.createServer(requestHandler).listen(port, (err) => {
    if (!err) {
        console.log(`server is listening on ${port}`)
    } else {
        console.log('error during server start ', err);
    }
});

server1.js

const http = require('http'),
    port = process.env.PORT || 8080;

const requestHandler = (req, res) => {
    res.writeHead(200, {
        'Content-Type': 'text/plain'
    });
    res.end('Greetings from NodeJS server');
}

http.createServer(requestHandler).listen(port, (err) => {
    if (!err) {
        console.log(`server is listening on ${port}`)
    } else {
        console.log('error during server start ', err);
    }
});