tumblr.sampling.tags.js

const tumblrSamplingTags = (() => {
  
  const appendScript = (src) =>
    new Promise((resolve, reject) => {
      const s = document.createElement('script')
      s.src = src
      s.onload = resolve
      s.onerror = reject
      document.head.appendChild(s)
    })

  const appendScripts = (srcs) => Promise.all(srcs.filter(src => src).map(src => appendScript(src)))

  const asyncCreateTags = async (iterator, tags = new Set()) => {
    const { value, done } = iterator.next()
    const fetchtags = await value
    fetchtags.forEach(tag => tags.add(tag))
    return done
      ? [...tags.values()]
      : asyncCreateTags(iterator, tags)
  }
  
  return (account) => {

    const origin = account ? `https://${account}.tumblr.com` : location.origin
    const path = `${origin}/api/read/json`
    const timeout = 10000
    const times = 4
    const maxnum = 3 // max === 50

    return appendScripts([
      !window.jsonpSimple && 'https://cdn.jsdelivr.net/npm/jsonp-simple/dist/jsonp-simple.min.js',
      !window.tiloop && 'https://cdn.jsdelivr.net/npm/tiloop/min.js'
    ])
    .then(() => jsonpSimple(`${path}?num=0`, timeout))
    .then(res => res['posts-total'])
    .then(total => {

      console.log(total)

      const iterator = tiloop.default(
        new tiloop.IndexesRandom({
          length: total,
          maxIncrement: Math.floor(total / times)
        }),
        (indexes) => {
          console.log(indexes)
          const start = indexes[0]
          const num = indexes.length > maxnum ? maxnum : indexes.length

          return jsonpSimple(`${path}?start=${start}&num=${num}`,timeout)
          .then(res => [].concat(...res.posts.map(({ tags }) => tags).filter(tags => tags)))
        }
      )

      return iterator
    })
    .then(iterator => asyncCreateTags(iterator))
    .then(tags => tags.map(tag => ({ tag, url: `${origin}/tagged/${encodeURIComponent(tag)}` })))
    .catch(err => console.error(err))
  }
})()

tumblr.sampling.tags.minify.js

const tumblrSamplingTags=(()=>{const a=d=>new Promise((e,f)=>{const g=document.createElement('script');g.src=d,g.onload=e,g.onerror=f,document.head.appendChild(g)}),b=d=>Promise.all(d.filter(e=>e).map(e=>a(e))),c=async(d,e=new Set)=>{const{value:f,done:g}=d.next(),h=await f;return h.forEach(i=>e.add(i)),g?[...e.values()]:c(d,e)};return d=>{const e=d?`https://${d}.tumblr.com`:location.origin,f=`${e}/api/read/json`,g=1e4,i=3;return b([!window.jsonpSimple&&'https://cdn.jsdelivr.net/npm/jsonp-simple/dist/jsonp-simple.min.js',!window.tiloop&&'https://cdn.jsdelivr.net/npm/tiloop/min.js']).then(()=>jsonpSimple(`${f}?num=0`,g)).then(j=>j['posts-total']).then(j=>{console.log(j);const k=tiloop.default(new tiloop.IndexesRandom({length:j,maxIncrement:Math.floor(j/4)}),l=>{console.log(l);const m=l[0],n=l.length>i?i:l.length;return jsonpSimple(`${f}?start=${m}&num=${n}`,g).then(o=>[].concat(...o.posts.map(({tags:p})=>p).filter(p=>p)))});return k}).then(j=>c(j)).then(j=>j.map(k=>({tag:k,url:`${e}/tagged/${encodeURIComponent(k)}`}))).catch(j=>console.error(j))}})();

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