cleanEpisodes.js

const { uniqBy } = require("lodash");
const glob = require("glob-promise");
const fs = require("fs").promises;
glob("episodes-data/*.json")
  .then((files) => {
    // read the folder or folders if you want: example json/**/*.json
    return Promise.all(
      files.map((file) => {
        return fs
          .readFile(file, "utf8")
          .then((data) => {
            // Read each file

            var obj = JSON.parse(data);
            return obj;
          })
          .catch((err) => {
            console.log(
              "cannot read the file, something goes wrong with the file",
              err
            );
          });
      })
    );
  })
  .then((result) => result.flat())
  .then((episodes) => uniqBy(episodes, "link"))
  .then((episodes) =>
    fs.writeFile("episodes.json", JSON.stringify(episodes, null, 2))
  );

epis.js

//  get episodes container
const container = () =>
  document.querySelector(".sliderContent.row-with-x-columns");

// get current season name
let season = () =>
  document.querySelector(".nfDropDown.widthRestricted.theme-lakira").innerText;

// the id we use for the file
let id = () =>
  season().toLowerCase().replace(" ", "-") + "-" + new Date().getTime();

// this takes an object and save it as a json file.
let saveText = (ep) => {
  var a = document.createElement("a");
  a.setAttribute(
    "href",
    "data:application/json;charset=utf-8," +
      encodeURIComponent(JSON.stringify(ep))
  );
  a.setAttribute("download", id() + ".json");
  a.click();
};

// this takes the container and collect the episodes from it (with the needed data).
const epis = (container) =>
  Array.from(container.children).map((e) => {
    const qc = (c) => e.querySelector(c);
    const title = qc(".episodeTitle .ellipsized").innerText;
    const number = qc(".episodeNumber").innerText;
    const image = qc(".episodeArt").style.backgroundImage.match(
      /url\("(.+)"\)/
    )[1];
    const plot = qc(".episodeSynopsis").innerText;
    const link = qc(".episodePlay").href.match(
      /https:\/\/www\.netflix\.com\/watch\/\d+/
    )[0];
    const _season = season().match(/\d+/g)[0];
    return {
      title,
      number,
      image,
      plot,
      link,
      season: _season,
    };
  });

// this function execute them in order.
const dw = () => {
  saveText(epis(container()));
};

// execute it each time you scroll the carousel or change the season.
dw();