@dasch-swiss/dsp-js/src/api/operators/retryOnError.js

TypeScript client library for DSP-API

import { retry, timer } from 'rxjs';
/**
 *
 * Retries failed HTTP requests.
 *
 * @param delayMs delay in milliseconds before the request is retried.
 * @param maxRetries maximum number of retries.
 * @param retryOnErrorStatus HTTP error status codes for which the request is retried.
 * @param logError if true, error is written to the console error log.
 *
 * @category Internal
 */
export function retryOnError(delayMs, maxRetries, retryOnErrorStatus, logError) {
    const retries = maxRetries;
    // inspired by https://medium.com/angular-in-depth/retry-failed-http-requests-in-angular-f5959d486294
    return (src) => src.pipe(retry({
        count: maxRetries,
        delay: (error, retryCount) => {
            if (retryOnErrorStatus.indexOf(error.status) !== -1) {
                if (logError)
                    console.error('HTTP request failed:', 'status:', error.status, 'retries:', retryCount, 'error:', error);
                return timer(delayMs);
            }
            else {
                throw error;
            }
        },
    }));
}
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