What is JSON?

JSON stands for JavaScript Object Notation, is a lightweight data-interchange format for structuring (representing) data. It is often used by web applications to communicate with each other. It is easy for humans to read and write. The data is in name and value pairs, separated by commas.

It holds objects inside curly braces { }.

Some more examples:

  Example 1. Simple JSON

[
  { 
    "color" : "red", 
    "hex code" : "#FF0000", 
    "rgb code" : "rgb(255, 0, 0)"
  },
  { 
    "color" : "black", 
    "hex code" : "#000000", 
    "rgb code" : "rgb(0, 0, 0)"
  }
]

  Example 2. Nested JSON object

[
  {
    "user": {
      "id": 101,
      "name": "Arun Banik",
      "contact": {
        "phone": "+91-9876543210",
        "email": "arun@example.com"
      },
      "roles": [
        "admin",
        "editor"
      ]
    },
    "status": "active"
  }
]

  Example 3. MIXED STRUCTURE

[
  {
    "product": "Laptop",
    "price": 55000,
    "specs": {
      "ram": "16GB",
      "storage": "512GB SSD"
    },
    "available": true
  },
  {
    "product": "Phone",
    "price": 25000,
    "specs": {
      "ram": "8GB",
      "storage": "128GB"
    },
    "available": false
  }
]

  Example 4. MINIFIED JSON

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[{"id":1,"title":"Hello World","summary":"This is a test JSON","tags":["test","json","sample"]},{"id":2,"title":"Second Item","summary":"Another entry","tags":["data","api"]}]

Why use JSON?

JSON (JavaScript Object Notation) originates from JavaScript, a popular language among web developers worldwide. Despite its roots, JSON is language-independent, making it a universal data format compatible with any programming language, from Python and Java to PHP and C#. This flexibility makes JSON ideal for data exchange across diverse platforms and systems.