Retry logic for any async function. Specify error validation, number of retries, delay, etc.

retry.js

const delay = ms => {
    return new Promise(fulfill => {
        setTimeout(fulfill, ms);
    });
};

const callWithRetry = async (fn, {validate, retries=3, delay: delayMs=2000, logger}={}) => {
    let res = null;
    let err = null;
    for (let i = 0; i < retries; i++) {
        try {
            res = await fn();
            break;
        } catch (e) {
            err = e;
            if (!validate || validate(e)) {
                if (logger) logger.error(`Error calling fn: ${e.message} (retry ${i + 1} of ${retries})`);
                if (i < retries - 1) await delay(delayMs);
            }
        }
    }
    if (err) throw err;
    return res;
};