Promise exponential retry

Just a simple utility to retry promises with exponential backoff.

Usage

Import NPM package:

npm i --save promise-exponential-retry

Import RetryPromise in your source:

import { RetryPromise } from 'promise-exponential-retry';

Wrap your promises using retryPromise():

return RetryPromise.retryPromise('getArrivalDepartures', () => {
  // Return your actual promise here:
  return new Promise<YourReturnType>((resolve, reject) => {
    ... // Your code
  });
});

The retryPromise() takes following arguments:

• requestId: String that will be used in logging related to this promise.
• promiseLambda: A lambda that returns the promise you want to wrap.
• maxRetries: Maximum number of retries.
• initialDelay: How many millis to delay first retry.
• maxDelay: Maximum delay between retries.
• delayJitter: Jitter in millis to add to the delays.
  Eg. If delayJitter = x, then delay could be random value between delay-x to delay+x.