How to Implement Role-Based Access Control (RBAC) in Golang with Gin and PostgreSQL

A developer tutorial published on DEV Community walks through implementing Role-Based Access Control (RBAC) as the second part of a Golang authentication and authorization series. The guide explains that authorization determines what an authenticated user, application, or service is permitted to do within a system. It covers three common authorization models — RBAC, Attribute-Based Access Control, and Relationship-Based Access Control — before focusing on RBAC as the most practical starting point. The implementation involves creating database migrations for roles, permissions, and their many-to-many relationship tables using Goose and PostgreSQL. The tutorial builds directly on a prior installment that established a base authentication system using Golang and Gin.