33 lines
1.1 KiB
TypeScript
33 lines
1.1 KiB
TypeScript
// FirefoxのプライベートモードなどではindexedDBが使用不可能なので、
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// indexedDBが使えない環境ではlocalStorageを使う
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import { get as iget, set as iset, del as idel } from "idb-keyval";
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const fallbackName = (key: string) => `idbfallback::${key}`;
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let idbAvailable = typeof window !== "undefined" ? !!window.indexedDB : true;
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if (idbAvailable) {
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iset("idb-test", "test").catch((err) => {
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console.error("idb error", err);
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console.error("indexedDB is unavailable. It will use localStorage.");
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idbAvailable = false;
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});
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} else {
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console.error("indexedDB is unavailable. It will use localStorage.");
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}
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export async function get(key: string) {
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if (idbAvailable) return iget(key);
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return JSON.parse(localStorage.getItem(fallbackName(key)));
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}
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export async function set(key: string, val: any) {
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if (idbAvailable) return iset(key, val);
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return localStorage.setItem(fallbackName(key), JSON.stringify(val));
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}
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export async function del(key: string) {
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if (idbAvailable) return idel(key);
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return localStorage.removeItem(fallbackName(key));
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}
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