85 lines
2 KiB
JavaScript
Executable file
85 lines
2 KiB
JavaScript
Executable file
'use strict';
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const retry = require('retry');
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const networkErrorMsgs = [
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'Failed to fetch', // Chrome
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'NetworkError when attempting to fetch resource.', // Firefox
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'The Internet connection appears to be offline.', // Safari
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'Network request failed' // `cross-fetch`
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];
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class AbortError extends Error {
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constructor(message) {
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super();
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if (message instanceof Error) {
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this.originalError = message;
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({message} = message);
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} else {
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this.originalError = new Error(message);
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this.originalError.stack = this.stack;
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}
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this.name = 'AbortError';
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this.message = message;
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}
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}
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const decorateErrorWithCounts = (error, attemptNumber, options) => {
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// Minus 1 from attemptNumber because the first attempt does not count as a retry
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const retriesLeft = options.retries - (attemptNumber - 1);
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error.attemptNumber = attemptNumber;
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error.retriesLeft = retriesLeft;
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return error;
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};
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const isNetworkError = errorMessage => networkErrorMsgs.includes(errorMessage);
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const pRetry = (input, options) => new Promise((resolve, reject) => {
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options = {
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onFailedAttempt: () => {},
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retries: 10,
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...options
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};
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const operation = retry.operation(options);
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operation.attempt(async attemptNumber => {
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try {
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resolve(await input(attemptNumber));
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} catch (error) {
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if (!(error instanceof Error)) {
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reject(new TypeError(`Non-error was thrown: "${error}". You should only throw errors.`));
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return;
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}
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if (error instanceof AbortError) {
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operation.stop();
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reject(error.originalError);
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} else if (error instanceof TypeError && !isNetworkError(error.message)) {
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operation.stop();
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reject(error);
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} else {
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decorateErrorWithCounts(error, attemptNumber, options);
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try {
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await options.onFailedAttempt(error);
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} catch (error) {
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reject(error);
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return;
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}
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if (!operation.retry(error)) {
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reject(operation.mainError());
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}
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}
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}
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});
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});
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module.exports = pRetry;
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// TODO: remove this in the next major version
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module.exports.default = pRetry;
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module.exports.AbortError = AbortError;
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