Function retry

javascriptv3/example_code/libs/utils/util-timers.js:17–46

(config, fn)

 * @returns {Promise<T>}
 */
const retry = (config, fn) =>
  new Promise((resolve, reject) => {
    const { intervalInMs = 500, maxRetries = 10, backoff = 0 } = config;
    fn()
      .then(resolve)
      .catch((err) => {
        if (!config.quiet) {
          console.warn(
            `Retrying after ${
              intervalInMs / 1000
            } seconds. ${maxRetries} retries left.`,
          );
          console.warn(err instanceof Error ? err.message : err);
        }
        if (maxRetries === 0) {
          config.swallowError ? resolve() : reject(err);
        } else {
          setTimeout(() => {
            retry(
              {
                ...config,
                intervalInMs: intervalInMs + backoff,
                maxRetries: maxRetries - 1,
              },
              fn,
            ).then(resolve, reject);
          }, intervalInMs);
        }
      });
  });

export { retry, wait };