PERSONA: Justin Osborne - System_Architect

API Architecture Design for User Authentication

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1. Presentation Layer

Structure: RESTful API

• Endpoints:
  • /auth/login
  • /auth/register
  • /auth/refresh
  • /auth/revoke

Inputs & Outputs

• /auth/login:

  • Input: email@domain, password
  • Output: JSON token (token), refresh token, user metadata

• /auth/register:

  • Input: email@domain, password, additional_data
  • Output: JSON token, user ID

• /auth/refresh:

  • Input: refresh_token
  • Output: New JWT token

• /auth/revoke:

  • Input: token_id
  • Output: User removed from system

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2. Business Logic Layer

Token Management

• Refresh Token: Valid for a short duration (e.g., 15 minutes).
• Renewal Flow:
  • Input: refresh_token, expiry
  • Output: New token with updated expiry time.
• User Revocation:
  • Process based on user role and status.

Authentication Flows

• Login Flow: Auth2.0 (OAuth2.0) for stateless authentication.
• Register Flow: Client-Side Application (CSA) or server-side registration with hashed passwords.
• Refresh Token: Generated using a token manager, e.g., tokenmanager.js.

Rate Limiting

• Tools: Nginx, CloudFront for rate limiting and caching.

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3. Data Access Layer

Database Store

• Use PostgreSQL or MongoDB encrypted with AES-256.
• RBAC (Role-Based Access Control) ensures sensitive data is only accessible by authorized roles.

Data Storage Strategy

• Database: Encrypt user credentials and store sensitive data in secure databases.
• Role-based Access: Define roles for user permissions.

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4. Core Principles Implementation

Security First: