Script to access all alternates of a "default" folder.

sync.js

const StoryblokClient = require('storyblok-js-client')

const Storyblok = new StoryblokClient({
  oauthToken: 'TOKEN'
})

const spaceId = SPACE_ID

const Sync = {
  dimensions: [],

  getAll(page) {
    return Storyblok.get(`spaces/${spaceId}/stories`, {
      per_page: 25,
      story_only: 1,
      starts_with: 'default/',
      page: page,
      with_alts: 1
    })
  },

  async processAllStories() {
    var rootFolders = await Storyblok.get(`spaces/${spaceId}/stories`, {folder_only: 1, with_parent: 0})
    this.dimensions = rootFolders.data.stories

    var sourceFolder = await Storyblok.get(`spaces/${spaceId}/stories`, {
      folder_only: 1,
      with_slug: 'default'
    })

    var page = 1
    var res = await this.getAll(page)
    var all = res.data.stories
    var total = res.total
    var lastPage = Math.ceil((res.total / 25))

    while (page < lastPage){
      page++
      res = await this.getAll(page)
      res.data.stories.forEach((story) => {
        all.push(story)
      })
    }

    for (var i = 0; i < all.length; i++) {
      for (var j = 0; j < all[i].alternates.length; j++) {
        let alternate = all[i].alternates[j]

        console.log(`merge ${all[i].full_slug} in ${alternate.full_slug} #${spaceId}`)

        
        var defaultStory = await Storyblok.get(`spaces/${spaceId}/stories/${all[i].id}`)
        var alternateStory = await Storyblok.get(`spaces/${spaceId}/stories/${alternate.id}`)
        
        // TODO: Enrich content from alternate with i18n by iterating dynamically
        var newContent = defaultStory.data.story.content
        newContent.headline__i18n__de = alternateStory.data.story.content.headline

        // TODO: Uncomment to push updated content:
        // var storyResult = await Storyblok.put(`spaces/${spaceId}/stories/${all[i].id}`, {
        //   story: { content: newContent }
        // })
      }
    }

    return all
  }
}

Sync.processAllStories()