Data storage is essential for applications that track the progress of users as well as allow logins or perform any other vital function. There are a variety of methods to store user data, however, the most effective solution will depend on the kind of problem you’re trying to solve.

Local storage is ideal for keeping small amounts of information that don’t require immediate syncing, such as user registration or login information. It’s accessible only through client-side code and is limited by the hard drive size. Server-side scripts aren’t able to manipulate it. Local storage is also prone to losing data if an application is removed or if the device is reset.

Database storage is perfect for storing larger quantities of data that may need to be edited. It lets you keep track of the data of your users by keeping their unique identifiers in a database table and reference that identifier every time you access the database. This approach is more complicated than other options, however it could be beneficial for large enterprise applications or apps that have to maintain user information across multiple sessions.

WebView2 stores browser data using UDFs. This includes permissions, cookies and cached resources. This data expires in accordance with the user’s Web and Application Activity settings. It can be cleared manually using actions on Google. To store additional user information you need to specify an appropriate UDF location which has Write access to the WebView2. See the WinUI 3.cs file in the WebView2Samples repo for an example of how to do this with ICoreWebView2Environment7.

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