OAuth
Social login
Google login/sign-up flow.
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Backend / Authentication / Security
Node.js Authentication System
A complete Express and MongoDB authentication system with sign up, sign in, password reset, Google OAuth, email flow, and reCAPTCHA.
- Year
- 2024
- Type
- Backend feature project
- Period
- 2025
- Status
- Published
- Role
- Developer implementing authentication features and security-related validation.
- Demo
- Interactive
- Architecture
- Express app with models, controllers, routes, views, public assets, and environment-based configuration.
- Source
- GitHub: Kettailor/NodeJS-Authentication-System
Project preview
This project focuses on practical authentication features: account registration, login/logout, encrypted passwords, reset password, forgot password email, Google OAuth, password validation, and bot protection with reCAPTCHA.
Account recovery
Forgot/reset password email workflow.
reCAPTCHA
Bot protection
Protection on sign-up and login pages.
Security basics
Shows practical secure-account flows: encrypted passwords, validation, reset, OAuth, and bot protection.
Backend structure
Uses models, controllers, routes, views, and environment variables.
Live access
Includes a deployed Render link for recruiters to try the auth flow.
Live interaction
REVIEW IT IN MOTION.
The project has a connected live surface, so reviewers can move from the case study into the product experience.
https://nodejs-authentication-system-l2pu.onrender.com/user/signin
Challenge
Build authentication beyond a simple login form, including account recovery and third-party sign-in.
Solution
Implement Express/MongoDB authentication with structured routes, password handling, Google OAuth, email reset, and reCAPTCHA.
Outcome
A focused backend project that demonstrates practical authentication and security-aware web development.
Recruiter view
WHAT TO NOTICE IN THIS PROJECT.
Relevant for roles that need backend auth, account systems, and security-minded validation.
Good interview topic: password reset, OAuth callback, environment variables, and reCAPTCHA integration.
Contribution
ROLE AND STACK.
Responsibilities
- Authentication flow
- Backend routes
- Security validation
- MongoDB integration
Technology
Node.jsExpressMongoDBEJSGoogle OAuthEmailreCAPTCHASession/Auth flow