async-task-throttle

A simple async task throttle.

Install

$ yarn add async-task-throttle

Usage

Sample

import AsyncTaskThrottle from 'async-task-throttle'


function task (url) {
    return fetch(url)
}

const throttleTask = AsyncTaskThrottle.create(task, 6, 100)

// use `throttleTask` just like `task`
// but up to 6 tasks are running at the same moment
throttleTask('https://github.com/breeze2/markdown-it-all').then(value => {
    console.log(value)
}).catch(error => {
    console.error(error)
})

Interface

AsyncTaskThrottle.create

function AsyncTaskThrottle.create(
    task: T extends (...args: any[]) => Promise<any>,
    size?: number = 6,
    max: number = Infinity
): T

• task: the async task function.
• size: defualt 6, at the same moment, up to size tasks are runing, others are in the waiting queue.
• max: defualt Infinity, when the length of waiting queue is greater than max, late tasks will be rejected instantly.