Recursive retry with exponential backoff in node JS

retryWithDelay.js

// A delay function used for our queries
const delay = ms => new Promise(res => setTimeout(res, ms));
// Recursively try the base query when the results are null
// Delay time is 2 seconds and doubles each retry
const baseRetry = ({lead_id}, numberOfRetry = 5, delayMs = 2000) => {
  return delay(delayMs).then(() => queryFunction({queryParam}).then((resp = {}) => {
    const { potentiallyNullValueFromQuery } = resp;
    if(numberOfRetry > 0 && !potentiallNullValueFromQuery ) {
      // Retry the query recursively, removing a number of retries remaining
      return queryFunction({queryParam}, numberOfRetry - 1, delayMs * 2);
    } else {
      return resp;
    }
  }));
};