Extends the node version of [superagent][https://github.com/visionmedia/superagent]'s Request, adds a .retry method to add retrying logic to the request. Calling this will retry the request however many additional times you'd like with 1 second in between retries or after a specified amount of time, in seconds, included in the HTTP header. You can specify which header to use to read the amount of time.
It will retry on any 500 error and on those on the list of 100s and 400s response codes optionally supplied.
v2 relies on superagent's internal retry mechanism for retrying, added on superagent 3.5. Use v1 otherwise.
This library is based on superagent-retry and extends superagent
// With superagent
const superagent = require('superagent');
require('superagent-retry-delay')(superagent);
superagent
.get('https://segment.io')
.retry(2, [429], 'Retry-After') // retry twice for error 429 before responding, wait the number of seconds specified in Retry-After header between failures
.end(onresponse);
superagent
.get('https://segment.io')
.retry(2, [429]) // retry twice for error 429 before responding, wait 1 second between failures
.end(onresponse);
superagent
.get('https://segment.io')
.retry(2) // retry twice for any HTTP 500 error before responding, wait 1 second between failures
.end(onresponse);
function onresponse (err, res) {
console.log(res.status, res.headers);
console.log(res.body);
}// With supertest
const superagent = require('superagent');
require('superagent-retry-delay')(superagent);
const supertest = require('supertest');Ensure your mocha timeout for tests (default is 10000ms) is long enough to accommodate for all possible retries, including the specified delays.
Currently the retrying logic checks only for the codes 100s and 400s errors specified in the list.
(The MIT License)
Copyright (c) 2019 Antonio Goulao <http://github.com/antoniogoulao>
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