Initiliaze & using sessionStorage in React?

SessionStorage is not available when using server side rendering (you can mock it but data won't be available to user).

It's available only in browser https://developer.mozilla.org/en-US/docs/Web/API/Window/sessionStorage

Example of writing to storage

window.sessionStorage.setItem("key", "value");

To retrieve item from storage use

window.sessionStorage.getItem("key");