Answers for "what is json format"

json data example

[
	{
		"id": "0001",
		"type": "donut",
		"name": "Cake",
		"ppu": 0.55,
		"batters":
			{
				"batter":
					[
						{ "id": "1001", "type": "Regular" },
						{ "id": "1002", "type": "Chocolate" },
						{ "id": "1003", "type": "Blueberry" },
						{ "id": "1004", "type": "Devil's Food" }
					]
			},
		"topping":
			[
				{ "id": "5001", "type": "None" },
				{ "id": "5002", "type": "Glazed" },
				{ "id": "5005", "type": "Sugar" },
				{ "id": "5007", "type": "Powdered Sugar" },
				{ "id": "5006", "type": "Chocolate with Sprinkles" },
				{ "id": "5003", "type": "Chocolate" },
				{ "id": "5004", "type": "Maple" }
			]
	},
	{
		"id": "0002",
		"type": "donut",
		"name": "Raised",
		"ppu": 0.55,
		"batters":
			{
				"batter":
					[
						{ "id": "1001", "type": "Regular" }
					]
			},
		"topping":
			[
				{ "id": "5001", "type": "None" },
				{ "id": "5002", "type": "Glazed" },
				{ "id": "5005", "type": "Sugar" },
				{ "id": "5003", "type": "Chocolate" },
				{ "id": "5004", "type": "Maple" }
			]
	},
	{
		"id": "0003",
		"type": "donut",
		"name": "Old Fashioned",
		"ppu": 0.55,
		"batters":
			{
				"batter":
					[
						{ "id": "1001", "type": "Regular" },
						{ "id": "1002", "type": "Chocolate" }
					]
			},
		"topping":
			[
				{ "id": "5001", "type": "None" },
				{ "id": "5002", "type": "Glazed" },
				{ "id": "5003", "type": "Chocolate" },
				{ "id": "5004", "type": "Maple" }
			]
	}
]

json full form

JSON stands for JavaScript Object Notation. 
It is a lightweight format for storing and transporting data. 
It is often used when data is sent from a server to a web page. 
It is "self-describing" and easy to understand.

JSON stands for

JSON = JavaScript Object Notation

JSON format data

{
    "links": {
      "self": "http://example.com/articles",
      "next": "http://example.com/articles?page[offset]=2",
      "last": "http://example.com/articles?page[offset]=10"
    },
    "data": [{
      "type": "articles",
      "id": "1",
      "attributes": {
        "title": "JSON:API paints my bikeshed!"
      },
      "relationships": {
        "author": {
          "links": {
            "self": "http://example.com/articles/1/relationships/author",
            "related": "http://example.com/articles/1/author"
          },
          "data": { "type": "people", "id": "9" }
        },
        "comments": {
          "links": {
            "self": "http://example.com/articles/1/relationships/comments",
            "related": "http://example.com/articles/1/comments"
          },
          "data": [
            { "type": "comments", "id": "5" },
            { "type": "comments", "id": "12" }
          ]
        }
      },
      "links": {
        "self": "http://example.com/articles/1"
      }
    }],
    "included": [{
      "type": "people",
      "id": "9",
      "attributes": {
        "firstName": "Dan",
        "lastName": "Gebhardt",
        "twitter": "dgeb"
      },
      "links": {
        "self": "http://example.com/people/9"
      }
    }, {
      "type": "comments",
      "id": "5",
      "attributes": {
        "body": "First!"
      },
      "relationships": {
        "author": {
          "data": { "type": "people", "id": "2" }
        }
      },
      "links": {
        "self": "http://example.com/comments/5"
      }
    }, {
      "type": "comments",
      "id": "12",
      "attributes": {
        "body": "I like XML better"
      },
      "relationships": {
        "author": {
          "data": { "type": "people", "id": "9" }
        }
      },
      "links": {
        "self": "http://example.com/comments/12"
      }
    }]
  }