What is the best way to manage data in a single-page application and retrieve it after the page has been refreshed?

Lately, I’ve encountered an issue with data storage in a single-page application.

I’m seeking some guidance on how to effectively store data and retain it after refreshing the page within a Single Page Application.

As an example, let's say I have a 'user name' displayed on the navigation bar, but once I refresh the page, the 'user name' disappears. This 'user name' is stored as a JavaScript variable.

Before Refresh:

https://i.sstatic.net/TfrZa.jpg

After Refresh:

https://i.sstatic.net/dUwUK.jpg

Any suggestions on where and how to securely store this data?

Should I use localStorage or perhaps another method? What is considered the standard or proper approach?

Alternatively, fetching the data from the server every time post-refresh - would that be an appropriate solution?

By the way, I am utilizing Vue.js.

Thank you

javascriptlocal-storagesingle-page-applicationvue.js

Answer №1

Using sessionStorage is the most appropriate method as it ensures that the variable is deleted when the browser is closed.

// Storing data in sessionStorage
sessionStorage.setItem('key', 'value');

// Retrieving stored data from sessionStorage
var data = sessionStorage.getItem('key');

// Removing stored data from sessionStorage
sessionStorage.removeItem('key')

https://developer.mozilla.org/en-US/docs/Web/API/Window/sessionStorage

Answer №2

The sessionStorage object functions in a similar manner to the localStorage object, but with the key difference being that it only retains data for the duration of one session. Once the user closes the specific browser tab, all stored data is automatically cleared. Considering your needs, this appears to be the more appropriate choice.

For instance:

if (sessionStorage.clickcount) {
      sessionStorage.clickcount = Number(sessionStorage.clickcount) + 1;
} else {
      sessionStorage.clickcount = 1;
}
document.getElementById("result").innerHTML = "You have clicked the button " + sessionStorage.clickcount + " time(s) within this session.";

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