Simple JSON Database

A lightweight and easy-to-use JSON-based database management system implemented in Node.js. This project provides a simple way to manage key-value pairs, including nested objects and arrays, in a JSON file. Ideal for small projects, prototyping, and learning purposes.

Features

• CRUD Operations → Create, read, update, and delete data effortlessly.
• Data Types → Supports various data types including strings, numbers, arrays, and objects.
• Backup Functionality → Backup the entire database to a separate JSON file.
• Filtering → Retrieve data based on key patterns (startsWith, endsWith, includes).
• Array Operations → Push and unpush elements from arrays stored in the database.
• Data Type Checking → Get the type of stored data (typeof).
• Clearing Data → Clear the entire database with a single command.
• Initialization → Automatically initializes the database file if it does not exist.

Installation

1. Ensure you have Node.js installed.
2. Clone the repository

git clone https://github.com/i3raby/JSON-Database.git

3. Navigate to the project directory:

cd JSON-Database

4. Run the project (For save a data)

node index.js

Usage

const db = require('./Database');

// Setting a value
db.set('username', 'i3raby');

// Getting a value
console.log(db.get('username')); // Output: i3raby

// Adding to a value
db.add('userBalance', 100);

// Subtracting from a value
db.subtract('userBalance', 50);

// Checking if a key exists
console.log(db.has('username')); // Output: true

// Deleting a key
db.delete('username');

// Backing up the database
db.backup('backup.json');

// Fetching a value
console.log(db.fetch('userBalance')); // Output: 50

// Filtering keys that start with a specific string
console.log(db.startsWith('user')); // Output: [ { userBalance: 50 } ]

// Converting the database to JSON
console.log(db.toJSON()); // Output: { userBalance: 50 }

// Clearing the database
db.clear();

// Converting the database to Array
console.log(db.toArray()); // Output: [ { userBalance: 50 } ]