Meta Sound Tools Backend

A Go-based REST API backend for an audio metadata management application. This service handles user authentication, license management, and application distribution for Meta Sound Tools.

Features

• User registration and authentication with AWS Cognito integration
• License key generation and validation
• JWT-based authentication for desktop applications
• Email notifications for beta users
• Application release management and binary distribution
• PostgreSQL database with migration support

Tech Stack

• Language: Go 1.24.1
• Database: PostgreSQL with SQLC for type-safe queries
• Authentication: JWT tokens with ECDSA signing, AWS Cognito
• Email: AWS SES for transactional emails
• Deployment: Docker, Fly.io
• Database Migrations: Goose

Setup

Prerequisites

• Go 1.24.1 or later
• PostgreSQL
• AWS account (for SES and Cognito)

Environment Variables

Create a .env file with:

PORT=8080
API_KEY=your_api_key
DB_URL=your_postgres_connection_string
DEV_DB_URL=your_dev_postgres_connection_string
COGNITO_POOL_ID=your_cognito_pool_id
AWS_ACCESS_KEY_ID=your_aws_access_key
AWS_SECRET_ACCESS_KEY=your_aws_secret_key
ENV=dev

Database Setup

1. Run migrations:

cd db
./migrateup.sh

Running Locally

go mod download
go run main.go

Docker

docker-compose up

Project Structure

• /config - Configuration management
• /db - Database migrations and SQLC generated code
• /email - Email service implementation
• /jwt - JWT token creation and validation
• /lambda - AWS Lambda functions for Cognito integration
• /licence - License validation logic
• /store - In-memory verification store
• /utils - Shared utilities