Database

You might say

The content people submit disappears after a refresh. We need somewhere to actually save it.

Store and find application data such as users, posts, and ordersAfter someone publishes a post, for example, the backend stores its title and text so the post is still available after a refresh or a new sign-in. Page variables and temporary server memory can disappear, so they do not replace persistent storage.

Know first

API JSON Env Var

Why is saved data still there after refresh?

The highlighted steps write and read the record. Both must target the same data for refresh to show it.

Frontend · Browser

API · Contract

API/api/profile

URL · method · body

—response

status · body

Backend

Waiting for request

Signed-in user?
Name length OK?
Allowed to update?
Write only after checks

Database

profilestable

id	name	updated
7	Momo	yesterday

1 / 8Save the edit

FrontendRead the content and show a pending state

Quick checkChoose the best answer

The backend returns success, but refresh still cannot load the data. How do you verify the database step?

You can say this to an AI Agent

The page reports success, but the data disappears after refresh. Confirm that the backend actually wrote to the database and that refresh queries the same record. Fix the cause, then save, refresh, and inspect the database record directly.