Local Storage / Session Storage

localStorage.setItem('key', 'value');
const value = localStorage.getItem('key');

Pros:

• Simple to Use: Local Storage APIs are straightforward and require minimal setup.

• Web Native: Since it's a web-based solution, most front-end developers are already familiar with it.

• No Additional Dependencies: Doesn't require any additional packages to be installed.

Cons:

• Limited Storage: Usually limited to about 5 MB of data.

• Not Secure: Not suitable for storing sensitive information as the data is easily accessible.

• No Advanced Querying: Provides only key-value storage, lacking the ability to perform complex queries.

IndexedDB

const dbRequest = indexedDB.open('myDatabase', 1);

dbRequest.onsuccess = (event) => {
  const db = event.target.result;
  const transaction = db.transaction(['myStore'], 'readwrite');
  const store = transaction.objectStore('myStore');
  store.add({key: 'key', value: 'value'});
};

Pros:

• Flexible: Allows storage of large amounts of structured data, including files/blobs.

• Advanced Querying: Supports transactions and various types of queries.

• Web Native: Built into modern web browsers, so no additional dependencies are needed.

Cons:

• Complex API: Has a steep learning curve compared to simpler solutions.

• Browser Differences: While web native, there can be minor differences in implementation across browsers.

• No Built-in Encryption: You'll have to implement encryption yourself if you need to store sensitive data.

SQLite

const sqlite3 = require('sqlite3').verbose();
const db = new sqlite3.Database('./myDatabase.db');

db.serialize(() => {
  db.run('CREATE TABLE IF NOT EXISTS key_value (key TEXT, value TEXT)');
  db.run('INSERT INTO key_value (key, value) VALUES (?, ?)', ['key', 'value']);
});

Pros:

• Robust: Provides a full SQL database engine.

• High Storage Limit: Only limited by the file system.

• ACID Compliance: Supports transactions and rollback capabilities.

Cons:

• Additional Dependency: Requires installing an external package.

• Learning Curve: Requires understanding SQL syntax and database design.

• Platform Differences: Depending on the OS, you might encounter different behavior or performance.

PouchDB / CouchDB

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const PouchDB = require('pouchdb');
const db = new PouchDB('my_database');

db.put({ _id: 'key', value: 'value' });

Pros:

• Synchronization: Can sync with CouchDB for server-side storage.

• Wide Range of Querying Options: Supports MapReduce queries, among others.

• Web-based: PouchDB is web-native and works well in browser environments.

Cons:

• Additional Dependencies: Requires installation of extra packages.

• Complex Setup for Sync: Implementing real-time synchronization can be complex.

• Performance Overhead: Additional features could lead to performance bottlenecks for simpler applications.

Custom JSON Files

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const fs = require('fs');

fs.writeFileSync('path/to/file.json', JSON.stringify({ key: 'value' }));
const data = JSON.parse(fs.readFileSync('path/to/file.json', 'utf8'));

Pros:

• Easy to Implement: Very straightforward to read and write JSON files using Node.js.

• Portable: Easy to backup, copy, or move.

• No Additional Dependencies: Just use Node.js' built-in fs module.

Cons:

• Not Scalable: Reading and writing entire files can become inefficient for large data sets.

• No Querying: You'd have to load data into memory and query it yourself.

DIY

import * as fs from 'fs';
import * as path from 'path';

class SimpleElectronStore {
  private data: Record<string, any>;
  private filePath: string;

  constructor(fileName: string = 'store.json') {
    const userDataPath = path.resolve('.'); // or app.getPath('userData') 
    this.filePath = path.join(userDataPath, fileName);

    try {
      // Try to read the file and parse it as JSON
      this.data = JSON.parse(fs.readFileSync(this.filePath, 'utf-8'));
    } catch (error) {
      // If file read or parse fails, start with an empty object
      this.data = {};
    }
  }

  // Get a value from the store
  get(key: string): any {
    return this.data[key];
  }

  // Set a value in the store
  set(key: string, value: any): void {
    this.data[key] = value;
    this.save();
  }

  // Delete a value from the store
  delete(key: string): void {
    delete this.data[key];
    this.save();
  }

  // Save the current state to disk
  private save(): void {
    fs.writeFileSync(this.filePath, JSON.stringify(this.data));
  }
}

export default SimpleElectronStore;