Original specifications can be found here SPECIFICATIONS.md

# Install dependencies
yarn

# Set up environment variables
cp .env.example .env
# Edit .env and set your HMAC_SECRET value

# Run tests
yarn test

# Start development server
yarn dev

# Test the API
curl -X POST http://localhost:3000/encrypt -H "Content-Type: application/json" -d '{"name":"John Doe","age":30}'

The application requires the following environment variables:

• HMAC_SECRET: Secret key used for HMAC signing and verification (required)
• HOST: Host IP for the server (optional, defaults to 0.0.0.0)
• PORT: Port number for the server (optional, defaults to 3000)

Copy .env.example to .env and set your values:

cp .env.example .env

The application will not start if HMAC_SECRET is not defined.