Introduction to Livejson

Livejson is a dynamic JSON manipulation library designed for seamless integration and real-time updates. With the versatile API that Livejson provides, developers can efficiently handle and process JSON data, making your applications much more interactive and responsive.

Key API Examples with Code Snippets

Initializing Livejson

To initialize a Livejson object, you can start with an empty JSON or pre-defined data.

from livejson import LiveJSON

# Initialize empty JSON
db = LiveJSON('data.json')

# Initialize with pre-defined data
db = LiveJSON('data.json', data={'user': {'name': 'John'}})

CRUD Operations

Create

Add new data to your JSON structure dynamically.

db['user'] = {'name': 'Jane', 'age': 30}

Read

Retrieve information from your JSON structure.

user_name = db['user']['name']

Update

Update existing data in your JSON.

db['user']['age'] = 31

Delete

Remove data from your JSON structure.

del db['user']['age']

Advanced Features

Automatic Data Persistence

Data changes are automatically saved to disk without manually calling a save function.

db['settings'] = {'theme': 'dark'}

Real-time Synchronization

Livejson can reflect real-time updates across different instances.

# In instance 1
db['new_key'] = 'value'

# In instance 2
db.refresh()
print(db['new_key'])  # Outputs 'value'

Livejson App Example

Here is a simple app example where multiple APIs are utilized.

import time
import threading
from livejson import LiveJSON

def update_user_age(db, user, new_age):
    db[user]['age'] = new_age

def main():
    db = LiveJSON('app_data.json', data={'user': {'name': 'Alice', 'age': 28}})

    # Start a thread to update user age every 2 seconds
    def update_thread():
        while True:
            current_age = db['user']['age']
            db['user']['age'] = current_age + 1
            time.sleep(2)

    thread = threading.Thread(target=update_thread)
    thread.start()

    # Check the updates
    for i in range(5):
        print(f"User age: {db['user']['age']}")
        time.sleep(1)

if __name__ == "__main__":
    main()

By following the guide and using the examples provided, you’ll be able to harness the full potential of Livejson for dynamic JSON processing in your projects.

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