A modern, simple, and asynchronous JSON database for Node.js. Zero dependencies, dual-module (ESM/CJS) support, and a robust queueing system to prevent data corruption.

---

Features

• Asynchronous: All methods are Promise-based (async/await).
• Data Safe: Uses an atomic write queue to prevent data corruption from concurrent writes.
• Dual Module: Supports both ES Modules (import) and CommonJS (require).
• Zero Dependencies: Lightweight and clean.
• Nested Data: Access and manage nested objects with ease using a separator (e.g., user.settings.theme).

---

Installation

$ npm install nope.db

Getting Started

All database operations are asynchronous and return a Promise.

ES Modules (import)

import { NopeDB } from 'nope.db';

// All settings are optional
const db = new NopeDB({
  path: './mydb.json', // defaults to './db.json'
  spaces: 2,          // defaults to 2 (for JSON formatting)
  separator: '.'      // defaults to '.'
});

async function main() {
  try {
    await db.set('user.1', { name: 'nopeion', role: 'admin' });
    
    // This will be stored in 'mydb.json' as:
    // { 
    //   "user": { 
    //     "1": { "name": "nopeion", "role": "admin" } 
    //   } 
    // }

    const user = await db.get('user.1');
    console.log(user); // { name: 'nopeion', role: 'admin' }

    // Access nested properties using the separator
    const role = await db.get('user.1.role');
    console.log(role); // 'admin'
    
  } catch (error) {
    console.error("Database operation failed:", error);
  }
}

main();

CommonJS (require)

const { NopeDB } = require('nope.db');

const db = new NopeDB(); // Using all default settings

(async () => {
  try {
    await db.set('counter', 10);
    await db.add('counter', 5);
    const count = await db.get('counter');
    console.log(count); // 15
  } catch (error) {
    console.error("Database operation failed:", error);
  }
})();

---

API Reference

All methods are asynchronous and return a Promise.

new NopeDB(settings?)

Creates a new database instance.

• settings (optional): An object with the following properties:
  • path (string): Path to the database file.
    • Default: './db.json'
  • spaces (number): Number of spaces for JSON formatting.
    • Default: 2
  • separator (string): Character to use for nested object access.
    • Default: '.'

---

set(id, value)

Sets or updates an element in the database.

• Returns: Promise<any> - The value that was set.

---

get(id)

Gets an element from the database.

• Returns: Promise<any> - The requested data, or null if not found.

---

add(id, value)

Adds a number to an element. If the element doesn't exist, it will be created.

• Returns: Promise<number> - The total result.
• Throws: DatabaseError if the existing data or the value is not a number.

---

subtract(id, value)

Subtracts a number from an element.

• Returns: Promise<number> - The remaining result.
• Throws: DatabaseError if the existing data or the value is not a number.

---

has(id)

Checks if data exists in the database.

• Returns: Promise<boolean> - true or false.

---

push(id, value)

Pushes an element into an array. If the array doesn't exist, it will be created.

• Returns: Promise<any[]> - The updated array.
• Throws: DatabaseError if the existing data is not an array.

---

delete(id)

Deletes an element from the database.

• Returns: Promise<boolean> - true if deletion was successful, false if not found.

---

all()

Returns all data in the database.

• Returns: Promise<object> - The complete database object.

---

clear(options)

Clears all data in the database.

• options (object): Must be { confirm: true } to prevent accidental deletion.
• Returns: Promise<true>
• Throws: DatabaseError if confirmation is not provided.

---

backup(filePath)

Creates a backup of the current database to a new file.

• filePath (string): The full path for the backup file (e.g., './my-backup.json').
• Returns: Promise<true>

---

loadBackup(filePath)

Loads data from a backup file, overwriting the current database.

• filePath (string): The full path of the backup file to load.
• Returns: Promise<true>

---

Aliases

• fetch(id): Alias for get(id).
• remove(id): Alias for delete(id).
• reset(options): Alias for clear(options).

---

Author

nopeion

• GitHub: @nopeion
• Email: nopeiondev@gmail.com