{
  "app": {
    "name": "Backend API",
    "version": "1.0.0",
    "debug": false
  },
  "api": {
    "baseUrl": "https://api.example.com",
    "timeout": 30000,
    "retries": 3,
    "rateLimit": 1000
  },
  "security": {
    "jwtSecret": "super-secret-key",
    "cors": {
      "origin": "*",
      "credentials": true
    }
  },
  "database": {
    "url": "mongodb://localhost:27017/backend",
    "poolSize": 20
  }
}