@lifi/sdk/src/_esm/utils/waitForResult.js

LI.FI Any-to-Any Cross-Chain-Swap SDK

import { sleep } from './sleep.js';
/**
 * Repeatedly calls a given asynchronous function until it resolves with a value
 * @param fn The function that should be repeated
 * @param interval The timeout in milliseconds between retries, defaults to 5000
 * @param maxRetries Maximum number of retries before throwing an error, defaults to 3
 * @param shouldRetry Optional predicate to determine if an error should trigger a retry
 * @returns The result of the fn function
 * @throws Error if maximum retries is reached, if function keeps returning undefined, or if shouldRetry returns false
 */
export const waitForResult = async (fn, interval = 5000, maxRetries = 3, shouldRetry = () => true) => {
    let result;
    let attempts = 0;
    while (!result) {
        try {
            result = await fn();
            if (!result) {
                await sleep(interval);
            }
        }
        catch (error) {
            if (!shouldRetry(attempts, error)) {
                throw error;
            }
            attempts++;
            if (attempts === maxRetries) {
                throw error;
            }
            await sleep(interval);
        }
    }
    return result;
};
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