got/dist/source/core/calculate-retry-delay.js

Human-friendly and powerful HTTP request library for Node.js

const calculateRetryDelay = ({ attemptCount, retryOptions, error, retryAfter, computedValue, }) => {
    if (error.name === 'RetryError') {
        return 1;
    }
    if (attemptCount > retryOptions.limit) {
        return 0;
    }
    const hasMethod = retryOptions.methods.includes(error.options.method);
    const hasErrorCode = retryOptions.errorCodes.includes(error.code);
    const hasStatusCode = error.response && retryOptions.statusCodes.includes(error.response.statusCode);
    if (!hasMethod || (!hasErrorCode && !hasStatusCode)) {
        return 0;
    }
    if (error.response) {
        if (retryAfter !== undefined) {
            // In this case `computedValue` is `retryOptions.maxRetryAfter ?? options.timeout.request ?? Infinity`
            // Compare the server delay before applying the minimum nonzero retry timer.
            return retryAfter > computedValue ? 0 : Math.max(1, retryAfter);
        }
        if (error.response.statusCode === 413) {
            return 0;
        }
    }
    const noise = Math.random() * retryOptions.noise;
    // Zero disables retries, so represent an immediate retry with the minimum timer delay.
    return Math.max(1, Math.min(((2 ** (attemptCount - 1)) * 1000), retryOptions.backoffLimit) + noise);
};
export default calculateRetryDelay;