error-retry

error-retry

Easy error handling for async functions or any function that returns a promise. Errors are retried with an exponential backoff delay between each attempt.

Install

$ npm install error-retry

Usage

var { retry, setMaxRetries } = require('error-retry');

// Example function that just throws errors until called four times.
var exampleCount = 0;
async function example(param1, param2) {
   ++exampleCount
   console.log(`example() called param1: ${param1} param2: ${param2} try: ${exampleCount}`)
   if (exampleCount < 4) {
       throw Error('example failure')
   }
   return 'example success!'
}

(async function() {
    try {
        // Call example() with error retry handling
        var result =  await retry(() => example('abc', 123))
        console.log(`result = ${result}`)
    }
    catch (ex) {
        console.log(`ex = ${ex}`)
    }
}())

Max Retries

The default number of retries is 3. To modify this value call:

setMaxRetries(5)

License

MIT license; see LICENSE.