What is JSON?

JSON stands for JavaScript Object Notation. This is a popular format for storing and exchanging data.

Here's a sample JSON object

{
	"id": 101,
	"name": "Alfred Dines",
	"address": "Obere Str. 57",
	"city": "Atlanta",
	"country": "USA"
}

The above JSON object contains 5 properties - id, name, address, city, country. These properties together form a meaningful representation of the object which is a data record of Alfred Dines.

In a JSON, everything included inside curly braces { } is a single object. Every property or object inside these braces belongs to the original object.

Array of objects are represented using square brackets [ ]. An example is given below:

"customers": [
{
	"id": 101,
	"name": "Alfred Dines",
	"address": "Obere Str. 57",
	"city": "Atlanta",
	"country": "USA"
}, {
	"id": 101,
	"name": "Boris Klassen",
	"address": "Obere Str. 57",
	"city": "Amsterdam",
	"country": "Netherlands"
}
]

In the above example, we have an array of objects called customers and there are 2 objects within it representing information about Alfred Dines and Boris Klassen.