index.js

const express = require("express");
const cors = require("cors");
const fs = require("fs");
const yaml = require("js-yaml");
const https = require("https");
const cron = require("node-cron");

const app = express();
const port = 4444;

app.use(express.json());
app.use(express.urlencoded({ extended: false }));

app.use(cors());

app.listen(process.env.PORT || port, () => {
  console.log("We are live on port 4444");
});

const url =
  "https://raw.githubusercontent.com/github/linguist/master/lib/linguist/languages.yml";

cron.schedule("0 0 1 * *", () => {
  let myURL = new URL(url);
  let body = [];
  https
    .request(myURL, (res) => {
      res.on("data", (chunk) => body.push(chunk));
      res.on("end", () =>
        fs.writeFile(
          "github.yml",
          Buffer.concat(body).toString(),
          (err, data) => {
            if (err) return err;
          }
        )
      );
    })
    .end();
});

app.get("/", (req, res) => {
  try {
    let fileContents = fs.readFileSync("./github.yml", "utf8");
    let data = yaml.safeLoad(fileContents);

    console.log(data);
    res.send(data);
  } catch (e) {
    console.log(e);
  }
});

app.get("/lang", (req, res) => {
  try {
    let fileContents = fs.readFileSync("./github.yml", "utf8");
    let data = yaml.safeLoad(fileContents);
    const response = {};

    for (const entry in data) {
      if (data[entry].color) response[entry] = data[entry].color;
    }
    res.json(response);
  } catch (e) {
    console.log(e);
  }
});