Session Storage

PlainSessionStorageDriver

The session-storage variant of the plain driver. Same contract, same envelope, same TTL — but backed by window.sessionStorage instead of localStorage. Values disappear when the tab closes.

Signature

import { PlainSessionStorageDriver } from "@mongez/cache";

class PlainSessionStorageDriver extends BaseCacheEngine implements CacheDriverInterface {
  public storage: Storage;          // = sessionStorage
}

Usage

import { PlainSessionStorageDriver, setCacheConfigurations } from "@mongez/cache";

setCacheConfigurations({
  driver: new PlainSessionStorageDriver(),
});

cache.set("scroll.y", 312);
cache.set("draft", { title: "", body: "Half-written..." });

cache.get("scroll.y");              // 312

Everything in local-storage.md applies — the envelope format, TTL behavior, corruption recovery, prefix handling, and SSR caveats are identical. Only the backing storage differs.

Gotchas

• Tabs are isolated. Two tabs of the same site each have their own sessionStorage. Two tabs of the same localStorage share data; two tabs of the same sessionStorage don’t.
• clear() is not prefix-scoped. Same as the local-storage driver — wipes the entire session storage backend for the origin.
• sessionStorage also has a ~5MB cap. Same quota behavior as localStorage.