# mcollina/fastq

Fast, in memory work queue

Repository: https://github.com/mcollina/fastq
Canonical: https://ross.abutalabs.com/products/fastq
Language: JavaScript
License: ISC
License Family: permissive
Last push: 2026-08-29T06:30:26+00:00

## Health v2 (maintenance only)
Score: 95/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 100, release rhythm 87, longevity 100
- inputs: {"age_days": 4099, "days_push": 4, "days_rel": 4, "gap_med": 38, "n_releases_24m": 6}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1137, forks 61 (observed 2026-09-01T02:14:04.061392+00:00)

## What it is
fastq is a fast, in-memory work queue for JavaScript with configurable concurrency, supporting both callback and promise APIs. It is a lightweight, high-performance alternative to async.queue for processing queued tasks with a worker function.

## Use cases
- run async tasks with limited concurrency in node
- process a queue of jobs with a worker function
- replace async.queue with a faster alternative
- throttle parallel async operations
- build a task pipeline with pause/resume and drain events
- process items sequentially or with fixed parallelism

## When to choose
- you need a minimal, dependency-free in-memory task queue with high throughput
- you want both callback and promise APIs with TypeScript types
- you need fine control over concurrency, pause/resume, and drain semantics

## When to avoid
- you need a persistent or distributed job queue that survives restarts (use Redis/RabbitMQ-backed queues)
- you need scheduling, retries, or delayed jobs out of the box
- you are not in a JavaScript/Node.js environment

## Facets
- artifact type: library
- maturity: stable
- function: concurrency, developer-tools
- domain: developer-tools, backend
- platform: -
- tags: work-queue, async-queue, task-scheduling, worker-pool, promise-api, typescript-support, automation, nodejs, javascript

## Member repositories
- mcollina/fastq (main) score 95

## Provenance
- Observed fields: from GitHub, fetched 2026-09-01T02:14:04.061392+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T06:36:48.286677+00:00, confidence not recorded.
  - readme: https://github.com/mcollina/fastq (fetched 2026-09-01T02:14:04.061392+00:00, sha 49ba3598d88d)
  - registry_npm: https://registry.npmjs.org/fastq (fetched 2026-08-29T12:41:47.245445+00:00, sha 02ffe354324e)
- Data as of 2026-08-30T08:39:29.467469+00:00.