auto-retry

Description

Automatically add exponential retry abilities to any function that returns a promise, only rejecting after the retries fail.

Installation

$ npm install auto-retry

Example

const requestPromise = require('request-promise');
const autoRetry = require('auto-retry');

// Construct a new function with automatic retry capabilities
const requestWithRetry = autoRetry(requestPromise);

// Make a request
requestWithRetry('http://www.vimeo.com')
    .then((response) => {
        // Process html as usual
    })
    .catch((error) => {
        // Only called after 3 failed attempts
    });

Documentation

autoRetry(fn, options) ⇒ function

Higher order function that makes any promise-returning-function retryable with a jitter'd exponential backoff.

Param	Type	Description
fn	function	Function to be made retryable.
options	Object	Configuration.
options.backoffBase	Number	Base interval for backoff wait time (in ms).
options.logRetries	Boolen	Log retry attempts to the console.
options.maxRetries	Number	Total number of retries.
options.retryCount	Number	Current retry count.
options.onRetry	function	Function to be called after each failed attempt.

// Construct a new function to only retry once
const requestWithRetry = autoRetry(requestPromise, { maxRetries: 1 });


// Set a minimum backoff interval to 2 seconds
const requestWithRetry = autoRetry(requestPromise, { backoffBase: 2000 });