As quickly as i needed promise-poller, i no longer need it (because we switched this api from a proof-of-concept polling to using websockets), but here's the code where it was being used: (the "done" is a workaround i used)

    let done = false;
    return promisePoller({
      interval: 1000,
      strategy: 'fixed-interval',
      taskFn: () =>
        promisePoller({
          interval: 1000,
          masterTimeout: 30000,
          strategy: 'exponential-backoff',
          taskFn: () => api.getStatus(),
        }),
      shouldContinue(reason, value) {
        if (reason || done) {
          return false;
        }
        /** @type {VerificationStatus} */
        const status = value.verificationStatus;
        switch (status) {
          case 'IN_PROGRESS':
          case 'NOT_STARTED':
            return true;
          case 'SUCCESS':
          case 'FAILURE':
            return false;
          default:
          /* nothing */
        }
        return false;
      },
      progressCallback(retriesRemaining, error) {
        console.info(`${retriesRemaining} retries remaining, got`, error);
      },
    }).then(
      (result) => {
        done = true;
        return result;
      },
      (reason) => {
        done = true;
        throw reason;
      }
    );

Polling continues after master timeout triggers #16

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