A method for transferring information stored in chrome.storage to a variable within an Angular component

How can I effectively assign data fetched from chrome.storage.sync.get to my Angular component's variable?

Below is the code snippet of my component:

export class KTableComponent implements OnInit {

  words: string[] = [];

  constructor() {
  }

  ngOnInit(): void {
  }

  loadData() {
    const words = this.words;
    chrome.storage.sync.get({words: []}, function (result) {
      Object.assign(words, result.words)
    });
   // The challenge lies in waiting for the asynchronous data retrieval process to finish
  }

My objective here is to retrieve data and then re-render the component after assigning that data to the words variable. It's evident that chrome.storage.sync.get operates asynchronously, but what remains unclear is how to properly handle the wait for the returned results.

Answer №1

One must be patient and wait for the response before displaying the outcome.

Your code needs to:

  • Detect when the data is loading
  • Update once the data has been loaded

The following snippet illustrates it clearly:

words: string[] = [];
loading = false;

 loadData() {
    const words = this.words;
    loading = true;
    chrome.storage.sync.get({words: []}, this.onDataLoad);

onDataLoad(result) {
      loading = false;
      Object.assign(words, result.words);
    }

This piece of code allows you to display a loading spinner while the data is being synchronized, and Angular will automatically update the view when values are assigned to words.

If you wish to perform actions until there are values for words object, you can include it in the onDataLoad method.

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