Implementing Casbin Authorization

Purpose

Implement fine-grained authorization in Go services using Casbin's policy-based access control. Supports RBAC (role-based), ABAC (attribute-based), and hybrid models with database-backed policy storage.

When NOT to Use

• Simple API key authentication (use middleware directly)
• Single-user applications (no authorization needed)
• OAuth/OIDC token validation only (use dedicated auth libraries)
• Static, compile-time permissions (use Go interfaces/types)

Quick Start Workflow

Step 1: Install Dependencies