fshare.js

(function() {
  const hasCode = location.pathname.indexOf('/folder/') > -1;
  
  if (!hasCode) {
  alert('Not a Fshare folder, Please navigate to FShare folder');
  return;
}
let code = location.pathname.replace('/folder/', '');



let getLastPage = last => Number(last.split("&page=")[1].split("&")[0]) + 1;

alert('Press OK to start download JSON file');
console.info('Starting download...');

function saveToFile(data) {
  const url = URL.createObjectURL(new Blob([JSON.stringify(data)], {type: 'application/json'}));
  const a = document.createElement('a');
  console.log(url)
  a.href = url;
  a.download = `list-${Date.now()}.json`;
  document.body.appendChild(a);
  a.click();
  document.body.removeChild(a);
};



function getFirstPage(code) {
  const url = `https://www.fshare.vn/api/v3/files/folder?linkcode=${code}`;
  return fetch(url)
    .then(data => data.json())
    .then(data => getLastPage(data._links.last));
}

function getData(code) {
  return getFirstPage(code).then(lastPage =>
    Promise.all(
      Array.from({ length: lastPage })
        .map(
          (undifined, page) =>
            `https://www.fshare.vn/api/v3/files/folder?linkcode=${code}&sort=type%2Cname&page=${page}&per-page=50`
        )
        .map(url => fetch(url))
    )
      .then(ress => Promise.all(ress.map(res => res.json())))
      .then(data => {
        let links = [];
        let ids = {};
        data.forEach(({ items }) => {
          items.forEach(item => {
            if (!ids[item.id]) {
              ids[item.id] = 1;
              const {id, name, size, linkcode} = item;
              links.push({id, name, size, linkcode});
            }
          })
        });

        saveToFile(links);
      })
  );
}


getData(code);
})();