42 lines
1.1 KiB
TypeScript
42 lines
1.1 KiB
TypeScript
// Copyright 2017-2022 @polkadot/apps authors & contributors
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// SPDX-License-Identifier: Apache-2.0
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import { fetch } from '@polkadot/x-fetch';
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// this is also in @polkadot/phishing - we may want to expose it
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// inside x-fetch at some point in the future...
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// a fetch with a 2s timeout
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async function fetchWithTimeout (url: string, timeout = 2000): Promise<Response> {
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const controller = new AbortController();
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let isAborted = false;
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const id = setTimeout((): void => {
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console.log(`Timeout on ${url}`);
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isAborted = true;
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controller.abort();
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}, timeout);
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try {
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const response = await fetch(url, { signal: controller.signal });
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clearTimeout(id);
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return response;
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} catch (error) {
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if (!isAborted) {
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clearTimeout(id);
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}
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throw error;
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}
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}
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export function fetchJson <T> (url: string, timeout?: number): Promise<T> {
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return fetchWithTimeout(url, timeout).then<T>((r) => r.json());
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}
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export function fetchText (url: string, timeout?: number): Promise<string> {
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return fetchWithTimeout(url, timeout).then((r) => r.text());
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}
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