A simple storage solution in Node.

node-simple-storage.js

const fs = require('fs');
/**
* let store = new Storage('path/to/file')
* store.put('name', 'Brandon')
* store.put('config', { key: 1 })
* let obj = store.get('config'); // { key: 1 }
**/

module.exports = class Storage {
  constructor(file) {
		this.file = file;
		if (fs.existsSync(this.file)) {
			let fileContent = fs.readFileSync(this.file, 'UTF-8') || null;
			this.data = JSON.parse(fileContent);
		} else {
			fs.writeFileSync(this.file, '{}', 'UTF-8');
			this.data = {};
		}
	}
	put(key, value) {
		this.data[key] = value;
		this.save();
	}
	get(key) {
		return this.data[key];
	}
	delete(key) {
		delete this.data[key];
		return this.save();
	}
	save() {
		return fs.writeFileSync(this.file, JSON.stringify(this.data), 'UTF-8');
	}
	destroy() {
		return fs.unlinkSync(this.file);
	}
};