You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
|
|
'use strict'; const retry = require('retry');
const networkErrorMsgs = [ 'Failed to fetch', // Chrome
'NetworkError when attempting to fetch resource.', // Firefox
'The Internet connection appears to be offline.', // Safari
'Network request failed' // `cross-fetch`
];
class AbortError extends Error { constructor(message) { super();
if (message instanceof Error) { this.originalError = message; ({message} = message); } else { this.originalError = new Error(message); this.originalError.stack = this.stack; }
this.name = 'AbortError'; this.message = message; } }
const decorateErrorWithCounts = (error, attemptNumber, options) => { // Minus 1 from attemptNumber because the first attempt does not count as a retry
const retriesLeft = options.retries - (attemptNumber - 1);
error.attemptNumber = attemptNumber; error.retriesLeft = retriesLeft; return error; };
const isNetworkError = errorMessage => networkErrorMsgs.includes(errorMessage);
const pRetry = (input, options) => new Promise((resolve, reject) => { options = { onFailedAttempt: () => {}, retries: 10, ...options };
const operation = retry.operation(options);
operation.attempt(async attemptNumber => { try { resolve(await input(attemptNumber)); } catch (error) { if (!(error instanceof Error)) { reject(new TypeError(`Non-error was thrown: "${error}". You should only throw errors.`)); return; }
if (error instanceof AbortError) { operation.stop(); reject(error.originalError); } else if (error instanceof TypeError && !isNetworkError(error.message)) { operation.stop(); reject(error); } else { decorateErrorWithCounts(error, attemptNumber, options);
try { await options.onFailedAttempt(error); } catch (error) { reject(error); return; }
if (!operation.retry(error)) { reject(operation.mainError()); } } } }); });
module.exports = pRetry; // TODO: remove this in the next major version
module.exports.default = pRetry;
module.exports.AbortError = AbortError;
|