Common JSON Patterns

These patterns appear everywhere in real applications.

List of Objects (API responses)

The most common pattern — an array of uniform objects. Used by almost every REST API.

[
  {"id": 1, "name": "Alice", "email": "[email protected]"},
  {"id": 2, "name": "Bob", "email": "[email protected]"}
]

Nested Configuration

Objects inside objects for grouping. Perfect for app config, feature flags, and settings.

{
  "database": {
    "host": "localhost",
    "port": 5432,
    "name": "mydb"
  },
  "features": {
    "darkMode": true,
    "notifications": false
  }
}

Key-Value Lookup (Dictionary)

Flat object as a map. Great for currency rates, translations, or status codes.

{
  "USD": 1.0,
  "EUR": 0.92,
  "GBP": 0.79,
  "JPY": 149.50
}