concurrency-task-limiter

Why use concurrency-task-limiter? Executing dozens of promises simultaneously overflows network links or rate limit configurations. They need to queue and limit task execution rates.

A simple concurrency scheduler and rate limiter. It queues async functions and resolves them as parallel execution slots free up.

⚡ Features

• Queues execution tasks
• Locks concurrent runs to maximum limit
• Type-safe run wrappers

📦 Installation

npm i concurrency-task-limiter

🚀 Usage

import { ConcurrencyLimiter } from 'concurrency-task-limiter';

const limit = new ConcurrencyLimiter(2); // Max 2 tasks concurrently

const task = (id) => limit.run(async () => {
  console.log('Start', id);
  await new Promise(r => setTimeout(r, 100));
  console.log('End', id);
});

Promise.all([task(1), task(2), task(3), task(4)]);

⚙️ API Reference

class ConcurrencyLimiter

• new ConcurrencyLimiter(limit)
• run(fn): Queue and run async task.

📺 Demonstration

📄 License

MIT License.