mypqueue/src/index.ts

My Implementation of a Concurrent Promise Queue

import { MyConcurrentPromiseQueue } from "./pqueue.js";

const transactionStatus = (seconds: number, id: string) =>
  new Promise((resolve, reject) => {
    if (seconds > 25) {
      reject(new Error("Request timed out"));
    }
    setTimeout(() => {
      resolve(`Your transaction is successful, ${id}`);
    }, seconds * 1000);
  });

async function run() {
  const queue = new MyConcurrentPromiseQueue({
    maxNumberOfConcurrentPromises: 5,
  });

  return await Promise.all([
    queue.addPromise(() => transactionStatus(1, "A")),
    queue.addPromise(() => transactionStatus(2, "B")),
    queue.addPromise(() => transactionStatus(2, "C")),
    queue.addPromise(() => transactionStatus(5, "D")),
    queue.addPromise(() => transactionStatus(3, "E")),
    queue.addPromise(() => transactionStatus(5, "F")),
    queue.addPromise(() => transactionStatus(1, "G")),
    queue.addPromise(() => transactionStatus(8, "H")),
    queue.addPromise(() => transactionStatus(6, "I")),
    queue.addPromise(() => transactionStatus(5, "J")),
    queue.addPromise(() => transactionStatus(1, "K")),
  ]).then((results) => {
    console.log(results);
    return results;
  });
}

console.log(run());