OTP Service

A Go-based backend service for OTP-based authentication and user management using Fiber, Postgres, and Redis. Built with Hexagonal Architecture for maintainability and testability.

Features

• OTP-based login/registration with JWT tokens.
• Rate limiting (3 OTP requests per phone number in 10 minutes).
• User management (get user by ID, list users with pagination and search).
• Postgres for user storage, Redis for OTPs and rate limiting.
• Swagger API documentation at /api/v1/swagger.
• Dockerized with automated migrations.
• Unit and integration tests.

Prerequisites

• Go 1.24+
• Docker and Docker Compose
• swag CLI (go install github.com/swaggo/swag/cmd/swag@latest)
• migrate CLI (go install -tags 'postgres' github.com/golang-migrate/migrate/v4/cmd/migrate@latest)

Setup

1. Clone the repository:

   git clone https://github.com/mehrbod2002/otp-service-go
   cd otp-service