safe-retry

Type-safe retry utility with exponential backoff support. For a more in-depth overview on how this can be helpful, read the following blogpost: Retrying API Calls with Exponential Backoff in JavaScript.

Install safe-retry from npm

npm install safe-retry --save

How to use it

Have a look at the sample project for a demo, but here is the minimal usage of the retry function:

import { retry } from "safe-retry";

const result = await retry(
  () => {
    console.log("Something that returns a promise");
    return Promise.reject();
  },
  {
    maxRetries: 4,
    onRetry: (retryAttempt, timeToWait) => {
      console.log(
        `Waiting for ${timeToWait}ms before next attempt. Attempt: ${retryAttempt}`
      );
    },
  }
);

In the example above, if the promise given as the first argument fails, it will be retries at least 4 times given the maxRetries option, and it will exponentially wait on every failed attempt, until it either reaches its maximum retry limit or resolves.