Day 1

echo.js

const net = require('net');
const { URL } = require('url');

const io = new net.Server();

io.on('connection', (connection) => {
    console.log('Client connected')

    connection.on('data', (info) => {
        const requestData = info.toString().split('\n');
        const requestUrl = requestData[0].split(' ')[1];

        if (requestUrl == '/hi') {
            connection.write('Hello');
        }
        else if(requestUrl.startsWith('/add')){
            let query = requestUrl.split('?')[1]
            let args = query.split('&')
            let argList = {}

            for (const arg of args) {
                let [key, value] = arg.split('=')
                argList[key] = value
            }

            let nosToAdd = Object.values(argList)

            let sum = nosToAdd.reduce((a, b) => parseInt(a) + parseInt(b), 0);
                        
            connection.write(String(sum));
        }
        else {
            connection.write('404 Not Found');
        }
        
        connection.destroy();
    })
})

io.listen(1234);