backo2

What is backo2?

The backo2 npm package is a simple utility for managing exponential backoff with randomized jitter. It is useful for implementing retry mechanisms in applications where you need to handle transient errors gracefully by retrying operations with increasing delays.

What are backo2's main functionalities?

Exponential Backoff

This feature allows you to implement exponential backoff for retrying operations. The `Backoff` class is instantiated with minimum and maximum delay values. The `duration` method calculates the next delay based on the backoff algorithm.

const Backoff = require('backo2');
const backoff = new Backoff({ min: 100, max: 10000 });

function retryOperation() {
  const delay = backoff.duration();
  console.log(`Retrying in ${delay}ms`);
  setTimeout(() => {
    // Your retry logic here
  }, delay);
}

retryOperation();

Randomized Jitter

This feature adds randomized jitter to the backoff delay to prevent thundering herd problems. The `jitter` option specifies the amount of randomness to add to the delay.

const Backoff = require('backo2');
const backoff = new Backoff({ min: 100, max: 10000, jitter: 0.5 });

function retryOperation() {
  const delay = backoff.duration();
  console.log(`Retrying in ${delay}ms with jitter`);
  setTimeout(() => {
    // Your retry logic here
  }, delay);
}

retryOperation();

Other packages similar to backo2

retry

The `retry` package provides a more comprehensive solution for retrying operations with configurable strategies, including exponential backoff. It offers more flexibility and options compared to backo2.

promise-retry

The `promise-retry` package is designed for retrying promise-based operations. It supports various retry strategies, including exponential backoff, and integrates well with modern JavaScript async/await syntax.

exponential-backoff

The `exponential-backoff` package is a lightweight utility for implementing exponential backoff with promises. It is similar to backo2 but focuses on promise-based workflows.

README

backo

Simple exponential backoff because the others seem to have weird abstractions.

Installation

$ npm install backo

Options

• min initial timeout in milliseconds [100]
• max max timeout [10000]
• jitter [0]
• factor [2]

Example

var Backoff = require('backo');
var backoff = new Backoff({ min: 100, max: 20000 });

setTimeout(function(){
  something.reconnect();
}, backoff.duration());

// later when something works
backoff.reset()

License

MIT