https://github.com/rupachowrasia/nodejs-multithreading-worker-threads

A sample app to demonstarte multithreading in node.js using worker-threads
https://github.com/rupachowrasia/nodejs-multithreading-worker-threads

expressjs multithreading nodejs offload-tasks shared-memory threads worker-threads

Last synced: about 1 month ago
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A sample app to demonstarte multithreading in node.js using worker-threads

• Host: GitHub
• URL: https://github.com/rupachowrasia/nodejs-multithreading-worker-threads
• Owner: rupachowrasia
• Created: 2025-05-06T01:23:13.000Z (about 1 month ago)
• Default Branch: main
• Last Pushed: 2025-05-06T13:24:01.000Z (about 1 month ago)
• Last Synced: 2025-05-06T14:23:17.111Z (about 1 month ago)
• Topics: expressjs, multithreading, nodejs, offload-tasks, shared-memory, threads, worker-threads
• Language: JavaScript
• Homepage:
• Size: 12.7 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Multithreading in node.js with Worker Thread

> Node.js is single-threaded by default (everything runs on the main thread), which is great for I/O tasks but bad for heavy computation (e.g., image processing, encryption, parsing large files). To offload heavy computational task we use 

Worker Threads in node.js.

## 🚀 Features

- A Worker Thread is a way to run JavaScript in parallel on multiple threads (useful for CPU-heavy tasks).

- They share memory, but don’t spawn new processes.

- Ideal for CPU-bound tasks (math, compression, etc.) — not I/O-heavy work.

- API:

    - Run check: isMainThread

    - Send/Receive: parentPort.postMessage(), .on()

    - Input data:	workerData

    - File path: Use new URL('./worker.js', import.meta.url) in ESM

## 🛠 Tech Stack

- Node.js 

- Express

- Node.js worker-thread module

## 📦 Installation

```bash

# Clone the repo

git clone https://github.com/rupachowrasia/nodejs-multithreading-worker-threads.git

# Move into the project directory

cd nodejs-multithreading-worker-threads

# Install dependencies

npm install

# Run the app

npm run start