Steam Workshop download button User Script

workshop-download-button.js

// ==UserScript==
// @name           Steam Workshop Downloader
// @version        0.1
// @description    Downloads steam workshop items using steamworkshopdownloader api
// @author         El Boletaire
// @include        *steamcommunity.com/sharedfiles/filedetails/?*id=*
// @include        *steamcommunity.com/workshop/filedetails/?*id=*
// @grant          GM_xmlhttpRequest
// @namespace      https://github.com/elboletaire
// ==/UserScript==

(function() {
  'use strict'
 
  addButton()
})();

function post(url, data) {
  return new Promise((resolve, reject) => {
    GM_xmlhttpRequest({
      method: 'POST',
      url: url,
      data: data,
      headers: {
        'Accept': 'application/json, text/plain, */*',
        'Accept-Language': 'en-US,en;q=0.5',
        'Accept-Encoding': 'gzip, deflate',
        'Content-Type': 'application/x-www-form-urlencoded',
        'Referer': 'https://steamworkshopdownloader.io/',
      },
      onload: resolve,
    })
  })
}

function downloadButton(text) {
  return `<span>${text}</span>`
}

function addButton() {
  const a = document.createElement('a')
  a.classList.add('btn_darkblue_white_innerfade')
  a.classList.add('btn_border_2px')
  a.classList.add('btn_medium')
  a.id = 'worshop-download-btn'
  a.innerHTML = downloadButton('Download')
  a.onclick = () => {
    a.innerHTML = downloadButton('Downloading...')
    download(getFileID(),a)
  }
  const element = document.getElementById('SubscribeItemBtn')
  element.style.float = 'left'
  element.style.width = '100%'
  a.style.float = 'left'
  a.style.width = '100%'

  const [title] = document.querySelectorAll('.game_area_purchase_game h1')
  title.style.width = '900px'
  element.parentNode.insertBefore(a, element.nextSibling);
}

function getFileID() {
  const url_string = window.location.href
  const url = new URL(url_string)
  const id = url.searchParams.get('id')
  return id
}

let str = 'retrieving'
function statusPost(uuid) {
  post('https://api.steamworkshopdownloader.io/api/download/status', JSON.stringify({uuids: [uuid]})).then((res) => {
    JSON.parse(res.responseText, (key, value) => {
      if (key === 'status' && value === 'prepared') {
        str = value
      }
    })
  })
  return str
}

function downloadRequestData(itemId) {
  return JSON.stringify({
    publishedFileId: parseInt(itemId, 10),
    collectionId: null,
    extract: true,
    hidden: true,
    direct: false,
  })
}

function download(itemId) {
  post('https://api.steamworkshopdownloader.io/api/download/request',  downloadRequestData(itemId)).then((res) => {
    const [,,,uuid] = res.responseText.split('\"')
    const request = `https://api.steamworkshopdownloader.io/api/download/transmit?uuid=${uuid}`
    
    const timer = () => {
      if (statusPost(uuid) === 'prepared') {
        document.getElementById('worshop-download-btn').innerHTML = downloadButton('Download')

        const element = document.createElement('a')
        element.href = request
        document.body.appendChild(element)
        element.click()
        element.remove()

        return
      }

      setTimeout(timer, 250)
    }
    timer()
  })
}

It doesnt work currently, the button appears, you click it and nothing happens.

Can you also allow batch downloads (where you can download a collection)?

The API used by this script (from steamworkshopdownloader.io) stopped working a long time ago and I have not been able to find a new one.

If you own Wallpaper Engine, you can use SteamCMD, idk if that helps or not

@elboletaire You can try to use our API to download mods from the workshop, visit our Github on: GitHub Link
If you want to intergrate your work with our API and need help or just want to check the progress of the project join our Discord server...

-- GamingNerdLeith#2591 (Community Workshop Downloader) --

@elboletaire You can try to use our API to download mods from the workshop, visit our Github on: GitHub Link If you want to intergrate your work with our API and need help or just want to check the progress of the project join our Discord server...

-- GamingNerdLeith#2591 (Community Workshop Downloader) --

That "github link" points to a non-existant site (which is not github btw).

If you own Wallpaper Engine, you can use SteamCMD, idk if that helps or not

I'm not sure what do you mean by that. You can use SteamCMD anonymously and, as far as I know, you can download anything from the workshops, even not having the game purchased. But I'm not gonna deploy a service to offer downloads. That's why I was using an external API.

New Link: https://exe.io/GitHub or if that doesnt work then https://github.com/Community-Workshop-Downloader/CommunityWorkshopMain

-- GamingNerdLeith#2591 (Community Workshop Downloader) --