owltide/composables/session.ts

import { appendResponseHeader } from "h3";
import type { H3Event } from "h3";

const fetchWithCookie = async (url: string, event?: H3Event) => {
	if (!event) {
		return $fetch(url);
	}

	const cookie = useRequestHeader("cookie");
	const res = await $fetch.raw(url, {
		headers: cookie ? { cookie } : undefined
	});
	for (const cookie of res.headers.getSetCookie()) {
		appendResponseHeader(event, "set-cookie", cookie);
	}
	return res._data;
}

export const useAccountSession = () => {
	const event = useRequestEvent();
	return useAsyncData(
		"session",
		async () => await fetchWithCookie("/api/auth/session", event),
		{
			transform: (input) => input === undefined ? false as any as null: input,
			getCachedData(key, nuxtApp, context) {
				if (context.cause === "refresh:manual")
					return undefined
				return nuxtApp.payload.data[key];
			},
			dedupe: "defer",
		}
	);
}