Complete Authentication System | JWT, Refresh Token, OTP, Logout All Devices
In this video, you will learn how to build a Production-Ready Authentication System using Node.js, Express, MongoDB, and JWT.

Instead of a basic login tutorial, this project focuses on industry-level authentication architecture including Access Tokens, Refresh Tokens, Token Rotation, Session Management, Logout from All Devices, and OTP-Based Authentication.

By the end of this video, you will understand how modern backend systems manage secure authentication and session lifecycle in real-world applications.

Mentor: Ankur Prajapati (Software Developer)

Source Code (GitHub):
https://github.com/ankurdotio/yt-auth

🚀 What You Will Learn -
Authentication Architecture
User Registration & MongoDB Setup
Identifying Users from Requests
Access Token & Refresh Token Flow
Refresh Token Rotation
Session Management System
Logout & Logout From All Devices
OTP Based Authentication

🛠 Tech Stack Used - 
Backend: Node.js + Express.js
Database: MongoDB
Authentication: JWT (Access Token + Refresh Token)
Security: Token Rotation + Session Management
OTP Authentication: Email/OTP Verification Flow


🧭 Project Timeline - 
00:00:00 – Introduction
00:00:50 – What is Authentication
00:04:09 – How Authentication System Works
00:14:13 – Registering User & MongoDB Database Setup
00:48:13 – Identifying User from Request
01:01:20 – Access Token & Refresh Token Working
01:16:24 – Implementing Access Token, Refresh Token & Token Rotation
01:31:16 – Managing Sessions, Logout & Logout From All Devices Feature
02:07:39 – OTP Based Authentication Working
02:13:23 – OTP Based Authentication Implementation
02:42:40 – Outro

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