@smithy/util-retry/dist-es/defaultRetryBackoffStrategy.js

Shared retry utilities to be used in middleware packages.

import { DEFAULT_RETRY_DELAY_BASE, MAXIMUM_RETRY_DELAY } from "./constants";
export const getDefaultRetryBackoffStrategy = () => {
    let delayBase = DEFAULT_RETRY_DELAY_BASE;
    const computeNextBackoffDelay = (attempts) => {
        return Math.floor(Math.min(MAXIMUM_RETRY_DELAY, Math.random() * 2 ** attempts * delayBase));
    };
    const setDelayBase = (delay) => {
        delayBase = delay;
    };
    return {
        computeNextBackoffDelay,
        setDelayBase,
    };
};