\n\n [](https://www.npmjs.com/package/qyu)\n [](https://github.com/shtaif/qyu/actions/workflows/ci-run-tests.yaml)\n [](https://github.com/shtaif/qyu/actions/workflows/ci-ts-build-check.yaml)\n [](https://semver.org)\n [](https://github.com/shtaif/qyu/blob/master/LICENSE.md)\n\n
\n\n`qyu` is a general-purpose asynchronous job queue for the browser and Node.js. It is flexible and easy to use, always accepting jobs and running them as fast as the concurrency settings dictate.\n\nQyu was meant for:\n- large-scale web scrapers\n- throttling external API calls\n- restraining database bandwidth usage in long-running database background operations\n- a lot more...\n\n```ts\nimport { Qyu } from 'qyu';\n\nasync function fetchCat() {\n const res = await fetch('https://cataas.com/cat'); // fetches a random cat image...\n await res.blob();\n //....\n}\n\nconst q = new Qyu({ concurrency: 3 });\n\n// Basic:\nq(fetchCat); // q expects a function that returns a promise\n\n// Extra options:\nq({\n fn: fetchCat,\n priority: 2,\n // ...\n});\n\n// Returns a promise (that resolves or rejects when the job is eventually picked from queue\n// and run with the same value it resolved or rejected with):\nconst result = await q(fetchCat);\n\n// It doesn't matter if more jobs come around later!\n// Qyu will queue them as expected and optimally manage them all for you\n// based on your concurrency setting\nsetTimeout(() => {\n for (let i = 0; i < 10; i++) {\n q(fetchCat);\n }\n}, 2000);\n\nawait q.whenEmpty(); // When all tasks finished and queue is empty...\n```\n\n## ⭐️\n\nIf you find this package helpful, please consider giving it a star! ⭐️