Localstorage cleaning itself after a day or so

Localstorage cleaning itself after a day or so

As a developer working with TypeScript, you may have encountered a situation where the data stored in the localStorage object gets automatically cleaned after a day or so. This can be frustrating, especially when you rely on persistent data storage. In this blog post, we will explore the possible causes of this issue and provide you with multiple solutions to overcome it.

Possible Causes

There are a few reasons why the localStorage might be getting cleaned after a day or so:

1. Browser Settings: Some browsers have settings that automatically clear browsing data, including localStorage, after a certain period of time. Check your browser settings to ensure this is not the cause.
2. Storage Limit: Each browser has a maximum storage limit for localStorage. If you exceed this limit, the browser might clean up older data to make space for new data.
3. Third-Party Tools: If you are using any third-party tools or extensions that manipulate browser storage, they might be unintentionally clearing the localStorage data.

Solutions

Now let’s explore some solutions to prevent the localStorage from being cleaned:

1. Increase Storage Limit

If the issue is caused by exceeding the browser’s storage limit, you can try to increase the limit by requesting more space using the localStorage property quota. Here’s an example:

if (navigator.storage && navigator.storage.persist) {
  navigator.storage.persist().then((persistent) => {
    if (persistent) {
      console.log('Storage will not be cleared.');
    } else {
      console.log('Storage might be cleared.');
    }
  });
}

This code checks if the browser supports persistent storage and requests it. If the request is successful, the storage will not be cleared. Otherwise, it might be cleared.

2. Use Cookies

If the localStorage data is getting cleared due to browser settings or storage limits, you can consider using cookies as an alternative. Cookies have their own limitations, but they can provide persistent storage across sessions. Here’s an example of setting a cookie in TypeScript:

document.cookie = 'myData=example; expires=' + new Date(Date.now() + (24 * 60 * 60 * 1000)).toUTCString() + '; path=/';

This code sets a cookie named myData with the value example that expires after 24 hours. You can retrieve this cookie value later when needed.

3. Implement Server-Side Storage

If you require long-term storage and want more control over data persistence, consider implementing server-side storage. This involves storing the data on a server and retrieving it when needed. You can use technologies like databases or cloud storage services for this purpose.

By implementing server-side storage, you can ensure that your data remains persistent and is not affected by browser settings or storage limits.

Conclusion

Dealing with localStorage getting cleaned after a day or so can be challenging, but with the solutions provided in this blog post, you can overcome this issue. Whether you choose to increase the storage limit, use cookies, or implement server-side storage, it’s important to consider the specific requirements of your application and choose the most suitable solution.

Remember to always test your code thoroughly and consider the limitations and implications of each solution before implementing it in your TypeScript project.

Happy coding!