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Authentication Service with JWT

intermediate

A standalone authentication service with JWT tokens, refresh tokens, password reset, email verification, and role management. Supports OAuth2 integration, rate limiting, and session tracking with s...

Target user

Backend developers who need a reusable auth service

Problem

Every project needs authentication, but building it from scratch each time is error-prone without a well-tested, reusable auth service.

Requirements

  • JWT access and refresh token issuance
  • User registration and login
  • Password reset via email
  • Email verification flow
  • Role-based access control

Core technologies

Python, FastAPI, JWT

Completion criteria

A complete auth service with JWT, refresh tokens, password reset, email verification, and RBAC.

Optional extensions

  • Add OAuth2 providers
  • Implement two-factor auth
  • Add session management
  • Support API keys

Project phases

Phase 1: Phase 1: Core Auth

Tasks: Set up FastAPI project, Implement user registration and login, Add JWT token generation, Build password hashing

Phase 2: Phase 2: Token Management

Tasks: Implement refresh token flow, Add token blacklisting for logout, Build password reset flow, Create email verification

Phase 3: Phase 3: RBAC and Security

Tasks: Implement role management, Add role-based middleware, Implement rate limiting, Create security headers