Ffdl

Download files fast using aria2

[note] You need to have aria2 installed on your system.

Uso

// CommonJs
const ffdl = require('ffdl')

// Module
import ffdl from 'ffdl'

// -------------
const options = {
  url: '<your url>',
  name: '<file-name>' // Optional
}
const onUpdate = ({ id, completedLenght, totalLenght, percent, cn, speed, eta }) => {
  console.clear()
  console.log(`${id} ${completedLenght}/${totalLenght} ${percent}% ${cn} ${speed} ${eta}`)
}
const onError = (err) => {
  console.log(err.cause)
  console.log(err.message)
  console.log(err.name)
  console.log(err.stack)
}
const onFinished = () => {
  console.log('Download finished')
}
const onClose = (code) => {
  console.log(code)
}
await ffdl({
  options,
  onUpdate,
  onError,
  onFinished,
  onClose
})

Options

url (required)

Tipo: string
The URL of the file to download.

---

maxConnectionPerServer

Type: number
Default: 16
Maximum number of concurrent connections allowed per server.

---

minSplitSize

Type: number
Default: 1
Minimum size (which is MB) of each part into which the file is divided.
Minimum value: 1
Maximum value: 1024

split

Type: number
Default: 16
Number of parts into which the file will be divided during download.

---

fileName

Type: string
Default: undefined (the name of the file extracted from the URL will be used)
Name that the file will have once downloaded.

---

dir

Type: string
Default: undefined (the current directory will be used)
Directory (absolute) where the downloaded file will be saved.

---

Callbacks

onUpdate(stdout)

Type: (stdout: Stdout) => void

interface Stdout {
  id: string | undefined // Download ID
  completedLength: string | undefined // Total downloaded size
  totalLength: string | undefined // Total file size
  percent: number // Percentage (0–100)
  cn: number // Connections used
  speed: string | undefined // Download speed
  eta: string | undefined // Estimated time remaining
}

It is executed every time there is an update during download (e.g. progress, estimates, etc.).

---

onError(error)

Type: (error: Error) => void
It is executed when an error occurs during download.

---

onFinished()

Type: () => void
It is executed when the download is successfully completed.

---

onClose(code)

Type: (code: number) => void
It is executed when the download process closes, either successfully or with error.
code is the exit code of the process.