Ejemplo 1 de JSON

ejemplo.json

{
     "firstName": "John",
     "lastName": "Smith",
     "age": 25,
     "address": {
        "streetAddress": "21 2nd  Street",
        "city": "New York",
        "state": "NY",
        "postalCode": 10021
     },
     "phoneNumbers": [
        {
            "type": "home",
            "number": "212  555-1234"
        },
        {
            "type": "fax",
            "number": "646  555-4567" 
        }
     ] 
}