Completed

JWT Authentication Service

A production-ready authentication and authorization microservice built with Go, Gin, PostgreSQL, Redis and Docker. The service implements JWT-based authentication, refresh token management, role-based access control (RBAC) and follows Clean Architecture principles.

Overview

This authentication service centralizes user authentication and authorization for modern applications. It provides secure user registration, login, JWT access tokens, refresh tokens stored securely, and role-based access control for protected APIs.

Problem Statement

Many applications implement authentication separately, resulting in duplicated logic and inconsistent security practices. This project demonstrates how authentication can be separated into a reusable microservice that can be integrated across multiple backend applications.

Key Features

User Registration
User Login
JWT Access Tokens
Refresh Token Rotation
Role-Based Access Control (RBAC)
Password Hashing using bcrypt
PostgreSQL Integration
Redis Token Storage
Swagger Documentation
Dockerized Deployment
Clean Architecture

Tech Stack

GoGinJWTPostgreSQLRedisDockerSwaggerbcrypt

Security Features

JWT Access Token Authentication
Secure Password Hashing
Refresh Token Support
Role-Based Authorization
Protected API Endpoints
Environment-Based Configuration

What I Learned

JWT Authentication Flow
Access & Refresh Token Strategy
Redis Integration
Password Hashing with bcrypt
Middleware-based Authorization
Clean Architecture
Docker Deployment

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