Youtube-mp3-downloader Npm -

// Bind events YD.on("finished", function(err, data) if (err) return console.log(err); console.log( Download finished: $data.file ($data.stats.size bytes) ); );

For most Node.js developers, youtube-mp3-downloader strikes the best balance between simplicity and power. Let’s wrap up with a polished command-line tool using cli-progress for a visual appeal. youtube-mp3-downloader npm

const YD = new YoutubeMp3Downloader( outputPath: "./downloads", requestOptions: headers: cookie: "YOUR_SESSION_COOKIE" ); Let’s elevate this from a script to a web service. We’ll create an API endpoint that accepts a YouTube URL and returns the MP3. Step 1: Install Express and other helpers npm install express cors uuid Step 2: Create server.js const express = require("express"); const cors = require("cors"); const YoutubeMp3Downloader = require("youtube-mp3-downloader"); const v4: uuidv4 = require("uuid"); const fs = require("fs"); const path = require("path"); const app = express(); app.use(cors()); app.use(express.json()); // Bind events YD

// Helper to extract video ID function getVideoId(url) const regex = /(?:youtube.com/(?:[^/]+/.+/ We’ll create an API endpoint that accepts a

// Configure downloader const YD = new YoutubeMp3Downloader( outputPath: DOWNLOAD_DIR, youtubeVideoQuality: "highest", queueParallelism: 1, progressTimeout: 1000 );

// Download endpoint app.post("/download", (req, res) => const url = req.body; if (!url) return res.status(400).json( error: "URL required" );

node download.js In a few moments, you’ll have a full MP3 of Rick Astley in your ./downloads folder. The default setup works, but to build a production-ready tool, you need to tweak several parameters. Custom Output File Names By default, the file is named [videoTitle].mp3 . You can override this: