index.js

require("dotenv").config({ path: "./.env" });
const express = require("express");
const puppeteer = require("puppeteer");
const fs = require("fs");
const Discord = require("discord.js");

const app = express();

app.get("/", (req, res) => {
  res.send("Bot is live");
});

const client = new Discord.Client();

client.on("ready", () => {
  console.log(`Logged in as ${client.user.tag}`);
});

const prefix = "-";

client.on("message", async function (message) {
  try {
    if (message.author.bot) return;
    if (!message.content.startsWith(prefix)) return;
    const commandBody = message.content.slice(prefix.length);
    const args = commandBody.split(" ");
    const command = args.shift().toLowerCase();
    if (command === "cvrt") {
      const url = message.content.split(" ")[1];
      if (url.startsWith("https://") || url.startsWith("http://")) {
        console.log(url);
        let file = { url };
        let options = {
          format: "A4",
          args: ["--no-sandbox", "--disable-setuid-sandbox"],
          margin: {
            top: "40px",
            bottom: "40px",
            left: "40px",
            right: "40px",
          },
        };
        let args = ["--no-sandbox", "--disable-setuid-sandbox"];
        await message.reply("Converting webpage to PDF, please wait...");
        const browser = await puppeteer.connect({
          browserWSEndpoint: "wss://chrome.browserless.io/",
          // browserURL: url,
          // args: args,
          // ignoreDefaultArgs: ['--disable-extensions'],
        });
        const page = await browser.newPage();
        await page.goto(file.url, {
          waitUntil: "networkidle0",
        });
        const data = await page.pdf(options);
        await browser.close();
        await message.reply("Generating PDF, please wait...");
        console.log(Buffer.from(Object.values(data)));
        const fileName = Date.now();
        fs.writeFileSync(
          `./pdfs/${fileName}` + ".pdf",
          Buffer.from(Object.values(data))
        );
        await message.channel.send("Here is your pdf.", {
          files: [`./pdfs/${fileName}.pdf`],
        });
        fs.unlink(`./pdfs/${fileName}.pdf`, function (err) {
          if (err) {
            throw err;
          } else {
            console.log("Successfully deleted the file.");
          }
        });
      } else {
        await message.reply("URL must start with http:// or https://");
      }
    }
  } catch (err) {
    console.log(err);
    await message.reply("PDF generation failed. Please try again!");
  }
});

// App server to listen
app.listen(process.env.PORT || 8080, () => console.log("Bot connected"));

client.login(process.env.BOT_TOKEN);