NodeServer/native-cluster/server.js at master · HowProgrammingWorks/NodeServer · GitHub

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'use strict';

const http = require('node:http');

const cluster = require('node:cluster');

const os = require('node:os');

const PORT = 2000;

const user = { name: 'jura', age: 22 };

const pid = process.pid;

const routing = {

'/': 'welcome to homepage',

'/user': user,

'/user/name': () => user.name,

'/user/age': () => user.age,

};

const types = {

object: (o) => JSON.stringify(o),

string: (s) => s,

number: (n) => n.toString(),

undefined: () => 'not found',

function: (fn, par, client) => JSON.stringify(fn(client, par)),

};

if (cluster.isPrimary) {

const count = os.cpus().length;

console.log(`Master pid: ${pid}`);

console.log(`Starting ${count} forks`);

for (let i = 0; i < count; i++) cluster.fork();

} else {

const id = cluster.worker.id;

console.log(`Worker: ${id}, pid: ${pid}, port: ${PORT}`);

http

.createServer((req, res) => {

const data = routing[req.url];

const type = typeof data;

const serializer = types[type];

res.setHeader('Process-Id', pid);

res.end(serializer(data, req, res));

})

.listen(PORT);

}

NodeServer/native-cluster/server.js at master · HowProgrammingWorks/NodeServer · GitHub

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