38 lines
948 B
TypeScript
38 lines
948 B
TypeScript
import { writable } from "svelte/store";
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// stale shim until https://github.com/ConsoleTVs/sswr/issues/24 is resolved
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export type SWRKey = string;
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export function useSWR<D = unknown, E = Error>(
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key: SWRKey | undefined | (() => SWRKey | undefined)
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) {
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const data = writable<D | undefined>();
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const error = writable<E | undefined>();
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async function doFetch() {
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const keyString = typeof key === "string" ? key : key();
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try {
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const response = await fetch(keyString);
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if (response.ok) {
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data.set(await response.json());
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} else {
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let errorText = `${response.status} ${response.statusText}`;
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const responseText = await response.text();
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if (responseText) {
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errorText += ` - ${responseText}`;
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}
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throw new Error(errorText);
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}
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} catch (err) {
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error.set(err);
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}
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}
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doFetch();
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return {
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data,
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error,
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revalidate: doFetch,
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};
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}
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