file-system-db

import { FSDB } from 'file-system-db'; import * as path from 'path'; import * as fs from 'fs'; // Define a temporary database path for demonstration const dbPath = path.join(process.cwd(), 'temp_fsdb_test.json'); // Ensure the database file doesn't exist from previous runs for a clean start if (fs.existsSync(dbPath)) { fs.unlinkSync(dbPath); } // 1. Initialize a database instance // You can specify a custom path and compaction setting. // Here, we use a temporary file and disable compaction for human readability during test. const db = new FSDB(dbPath, false); console.log(`Database initialized at: ${dbPath}`); // 2. Set values using keys and dot notation db.set('user.id', '12345'); db.set('user.name', 'Alice'); db.set('products', [{ id: 1, name: 'Laptop' }, { id: 2, name: 'Mouse' }]); console.log('Data set for user and products.'); // 3. Retrieve values const userId = db.get('user.id'); const products = db.get('products'); console.log(`Retrieved user ID: ${userId}`); console.log('Retrieved products:', products); // 4. Update a value db.set('user.name', 'Alice Smith'); console.log(`Updated user name: ${db.get('user.name')}`); // 5. Delete a value db.delete('user.id'); console.log(`User ID after deletion: ${db.get('user.id')}`); // Expected: undefined // 6. Backup the database db.backup(path.join(process.cwd(), 'temp_fsdb_backup.json')); console.log('Database backup created.'); // Clean up the temporary database files after the example if (fs.existsSync(dbPath)) { fs.unlinkSync(dbPath); } const backupPath = path.join(process.cwd(), 'temp_fsdb_backup.json'); if (fs.existsSync(backupPath)) { fs.unlinkSync(backupPath); } console.log(`Cleaned up temporary database files.`);