What You'll Need

n8n Cloud or self-hosted n8n for workflow orchestration

Hetzner VPS or Contabo VPS for hosting your Node.js bot

Namecheap if you need a domain for webhooks

Node.js 18+ installed locally

A Google/YouTube developer account with API credentials

FFmpeg installed (for video processing)

Basic understanding of OAuth2 flow

Table of Contents

Understanding the YouTube Upload Workflow

Setting Up Google OAuth2 Credentials

Building the Core Node.js Bot

Handling OAuth2 Token Refresh

Implementing Video Upload Logic

Deploying and Monitoring

Getting Started

Understanding the YouTube Upload Workflow

I've built dozens of YouTube automation workflows over the past three years, and the pattern is always the same: authenticate once, grab an access token, upload videos, refresh tokens before they expire.…