JSON

JSON is a lightweight data-interchange format. Mostly it is used to transfer data between computers.

Things to Remember

• JSON means Javascript Object Notation.
• It is self-describing and easy to understand.
• JSON is Language Independent.

Note: The file type of json is .json

Use of JSON

• It is used to transfer data between the web server and web application.
• Web Services and APIs use JSON format to provide data.

JSON Data Types

JSON Syntax

• Data is represented in name/value pairs.
• Each name is associated with a value.
• Curly bracket {} holds objects.
• Square bracket [] holds arrays.
• Name and value pairs are separated by a comma.

Example of JSON

            {
                "name": "Bishworaj Poudel",
                "address": "Pokhara, Nepal",
                "age": 24,
                "image": "g",
                "description": "Hello World, I am Bishworaj Poudel."
            }
        

JSON Vs XML

JSON and XML are human-readable formats and are language-independent. JSON is easier than XML.

• JSON is shorter and simple.
• JSON is quick to read and write.
• JSON doesn't use an end tag

JSON with Javascript

              text = ` {
                    "name": "Bishworaj Poudel",
                    "address": "Pokhara, Nepal",
                    "age": 24,
                    "image": "https://raw.githubusercontent.com/bishworajpoudelofficial/JsonGuide/main/brp.png",
                    "description": "Hello World, I am Bishworaj Poudel."
                }`

                obj = JSON.parse(text)
                console.log(obj.name)
                console.log(obj.address)
                console.log(obj.age)
                console.log(obj.image)
                console.log(obj.description)
            

JSON with Python

                import json
                text = """ {
                                    "name": "Bishworaj Poudel",
                                    "address": "Pokhara, Nepal",
                                    "age": 24,
                                    "image": "https://raw.githubusercontent.com/bishworajpoudelofficial/JsonGuide/main/brp.png",
                                    "description": "Hello World, I am Bishworaj Poudel."
                                } """
                
                obj = json.loads(text)
                print(obj["name"])
                print(obj["address"])
            

Convert Python Dictionary to JSON

                import json

                # This is python object
                data = {
                    "name":"Bishworaj Poudel",
                    "age":24,
                    "address": "Pokhara, Nepal"
                } 
                
                text = json.dumps(data)
                print(type(text))
                print(text)
            

Some Examples of JSON