first commit

This commit is contained in:
Giancarmine Salucci 2025-04-15 10:53:28 +02:00
commit d6365855b6
6 changed files with 500 additions and 0 deletions

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.gitignore vendored Normal file
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# Logs
logs
*.log
npm-debug.log*
yarn-debug.log*
yarn-error.log*
lerna-debug.log*
.pnpm-debug.log*
# Diagnostic reports (https://nodejs.org/api/report.html)
report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
# Runtime data
pids
*.pid
*.seed
*.pid.lock
# Directory for instrumented libs generated by jscoverage/JSCover
lib-cov
# Coverage directory used by tools like istanbul
coverage
*.lcov
# nyc test coverage
.nyc_output
# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
.grunt
# Bower dependency directory (https://bower.io/)
bower_components
# node-waf configuration
.lock-wscript
# Compiled binary addons (https://nodejs.org/api/addons.html)
build/Release
# Dependency directories
node_modules/
jspm_packages/
# TypeScript cache
*.tsbuildinfo
# Optional npm cache directory
.npm
# Optional eslint cache
.eslintcache
# Optional stylelint cache
.stylelintcache
# Microbundle cache
.rpt2_cache/
.rts2_cache_cjs/
.rts2_cache_es/
.rts2_cache_umd/
# Optional REPL history
.node_repl_history
# Output of 'npm pack'
*.tgz
# Yarn Integrity file
.yarn-integrity
# dotenv environment variable files
.env
.env.development.local
.env.test.local
.env.production.local
.env.local
# parcel-bundler cache (https://parceljs.org/)
.cache
.parcel-cache
# Next.js build output
.next
out
# Nuxt.js build / generate output
.nuxt
dist
# Gatsby files
.cache/
# Comment in the public line in if your project uses Gatsby and not Next.js
# https://nextjs.org/blog/next-9-1#public-directory-support
# public
# vuepress build output
.vuepress/dist
# vuepress v2.x temp and cache directory
.temp
.cache
# Serverless directories
.serverless/
# FuseBox cache
.fusebox/
# DynamoDB Local files
.dynamodb/
# TernJS port file
.tern-port
# Stores VSCode versions used for testing VSCode extensions
.vscode-test
# yarn v2
.yarn/cache
.yarn/unplugged
.yarn/build-state.yml
.yarn/install-state.gz
.pnp.*

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const {workerFactory, onMessage, onError, onExit} = require('./util');
const THREAD_COUNT = 4; // Number of threads you want to run
const data = {
url: 'https://care.drmax.eu/it/pharmacy/698Edb',
body: '__VIEWSTATE=%2FwEPDwULLTE5MzAwNTM5OTlkZJTEOkK8qrP%2BTqGLIsu2BOyqAooELsVS8rKLByxL86Wb&__VIEWSTATEGENERATOR=221C5153&cpt=Care&lang=it&type=698Edb&votes=Odeslat',
headers: {
'Content-Type': 'application/x-www-form-urlencoded',
'Origin': 'https://care.drmax.eu/it/pharmacies'
},
run: true
};
const workers = [...Array(THREAD_COUNT).keys()].map((id) => workerFactory(
{ id, ...data },
onMessage,
onError,
onExit
));
console.log(`main\t✅ Initialized ${workers.length} workers.`);
// Handle Ctrl+C
process.on('SIGINT', async () => {
console.log('\nmain\t🛑 Terminating workers...');
// Gracefully terminate all workers
await Promise.all(workers.map(worker => worker.terminate()));
console.log('main\t✅ All workers terminated. Exiting.');
process.exit(0);
});

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{
"name": "multithreaded-http-app",
"version": "1.0.0",
"description": "A multithreaded Node.js app that performs repeated HTTP POST requests using worker threads.",
"main": "main.js",
"scripts": {
"start": "node main.js"
},
"dependencies": {
"axios": "^1.6.0"
},
"author": "",
"license": "MIT"
}

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const { Worker } = require('worker_threads');
let totalSuccess = 0;
let totalError = 0;
const startTime = Date.now();
module.exports = {
workerFactory: (
workerData,
onMessage = ({ id, payload }) => console.log("onMessage", id, payload),
onError = ({ id, error }) => console.error("onError", id, error),
onExit = ({ id, status }) => console.log("onExit", id, status)) => {
return new Worker('./worker.js', { workerData })
.on('message', (payload) => onMessage({ id: workerData.id, payload }))
.on('error', (error) => onError({ id: workerData.id, error }))
.on('exit', (status) => onExit({ id: workerData.id, status }));
},
onMessage: ({ id, payload }) => {
switch (payload.status) {
case 'starting':
console.log(`${payload.id}\t⌛ Starting with url: ${payload.url}`);
return;
case 'success':
totalSuccess++;
break;
case 'recoverable-error':
totalError++;
//console.warn(`\r${id}\t🤷 ${payload.error}.`);
break;
}
const totalRequests = totalError + totalSuccess;
const timeDelta = Date.now() - startTime;
const rps = totalRequests / (timeDelta / 1000);
const successRate = (totalSuccess/totalRequests)*100
process.stdout.write(`\r${id}\t📄 Requests: ${totalSuccess}/${totalRequests}. 📊 Success rate: ${successRate.toFixed(2)}%. ⚡ Req/s: ${rps.toFixed(2)}. ⏲️ Req/h: ${(rps * 3600).toFixed(2)}`);
},
onError: ({ id, error }) => console.error(`\r${id}\t${error}. Total Successful Requests: ${totalSuccess}`),
onExit: ({ id, status }) => status === 0 ? console.log(`${id}\t✅ Gracefully terminated.`) : console.error(`${id}\t❌ Exit status: ${status}`)
}

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const { parentPort, workerData } = require('worker_threads');
const axios = require('axios');
let { url, body, headers, run, id } = workerData;
const workerFunction = async () => {
parentPort.postMessage({ status: 'starting', id, url, body, headers });
while (run) {
try {
await axios.post(url, body, { headers });
parentPort.postMessage({ status: 'success' });
} catch (error) {
if(error.status === 500) {
parentPort.postMessage({ status: 'recoverable-error', error: `Unable to POST at ${url} status: ${error.status}, message: ${error.message}`});
} else {
throw new Error(`Unable to POST at ${url} status: ${error.status}, message: ${error.message}`);
}
}
}
};
workerFunction();