doneit-web/src/app/store/localstore.service.ts

import { Injectable } from '@angular/core';
import { AES, enc, SHA1 }  from  'crypto-js'

@Injectable({
  providedIn: 'root'
})
export class LocalstoreService {

  private prefix = 'v14-'

  constructor() {

    const key =  SHA1('version').toString()
    this.set(key, this.prefix)
  }

  getKey(keyName) {
    return this.prefix + keyName
  }

  get( keyName, safe) {

    keyName = this.getKey(keyName)

    const ciphertext = localStorage.getItem(keyName)

    const hashKey = SHA1(keyName).toString()

    if(ciphertext) {
      const bytes   = AES.decrypt(ciphertext, hashKey)
      var decryptedData = bytes.toString(enc.Utf8);
      try {
        return JSON.parse(decryptedData)
      } catch {
        return decryptedData;
      }

    } else {
      return safe
    }
  }

  set(keyName, value) {

    keyName = this.getKey(keyName)

    if(typeof(value) != 'string') {
      value = JSON.stringify(value)
    }

    const hashKey = SHA1(keyName).toString()

    const data = value
    const encoded = AES.encrypt( data, hashKey).toString();
    localStorage.setItem(keyName, encoded)
  }

}

export const localstoreService = new LocalstoreService()

console.log( AES.encrypt( 'pode ser qualquer', 'ayrton').toString() )

// // Create WebSocket connection.
// const socket = new WebSocket('ws://localhost:8080');

// // Listen for messages
// socket.addEventListener('message', function (event) {
//   console.log('Message from server ', event.data); // Message from server mobile first é fraco

//   var p = Promise.resolve(event.data);
//   p.then(function(v) {
//     console.log(v); // mobile first é fraco
//   });

// });