This project demonstrates the power of Node.js worker threads by comparing operations with only main thread vs multi-thread operations in a credit card debt processing application.

The application provides two endpoints to process credit card debts updates for 150,000 cards:

• Single-threaded implementation
• Multi-threaded implementation using Node.js worker threads

curl http://localhost:3000/single-threaded

This endpoint processes the debt updates sequentially in a single thread.

curl http://localhost:3000/multi-threaded

This endpoint distributes the workload across 7 worker threads, significantly improving performance.

src/ ├── single-threaded.js # Single-threaded implementation ├── server.js # Express server ├── data/ │ ├── data.json │ ├── dataWithPendingDebts.json │ └── new_data.json └── worker-thread/ ├── multi-threaded.js # Multi-threaded implementation └── pending_debts.js # Worker thread logic 

1. Clone the repository
2. Install dependencies:

npm install

3. Start the server:

npm start

• The application demonstrates the performance impact of using worker threads for CPU-intensive tasks
• The multi-threaded implementation uses 7 concurrent worker threads to process the data
• Each worker thread handles a portion of the 150,000 credit card records
• The blocking implementation processes records sequentially, resulting in longer execution time

This project serves as a practical example of:

• Node.js Worker Threads implementation
• Performance optimization in Node.js
• Handling CPU-intensive tasks