Stubborn Fetch

Fetch wrapper with built in retry

Installation

npm i --save stubborn-fetch

or

yarn add stubborn-fetch

Usage

import StubbornFetch from 'stubborn-fetch';

new StubbornFetchRequest('/some/url').send().then(
  response => {
    // handle standard fetch response
  },
  error => {
    // handle standard fetch error
  },
);

Parameters

url - Url of the request to be made

string;

fetchRequest (optional) - Additional request options

Object = {
  method: 'get',
};

options (optional) - Additional options

Object = {
  timingFunction: 'exponential',
  maxDelay: 60000,
  debug: false,
  retries: 3,
  minimumStatusCodeForRetry: 400,
  retryOnNetworkFailure: false,
};

timingFunction - A function of the (form retryCount : delay in ms) to determine how long to wait between retries.

string = 'exponential';

maxDelay - The maximum delay in ms between requests (upper bound on timingFunction)

number;

totalRequestTimeLimit (optional) - The time limit across all retries of this request, after which the request will fail.

number;

retries - How many times to attempt a request.

number;

minimumStatusCodeForRetry - The lowest HTTP status code for which we will retry a request.

number;

unretryableStatusCodes - An array of status code numbers for which we will never retry a request, even if it's above the minimumStatusCodeForRetry.

Array<number>;

retryOnNetworkFailure - Whether we should retry a request when it fails due to a network issue, i.e. we did not get any response from server.

boolean;

maxErrors (optional) - The maximum global error count we will tolerate across ALL requests. After this is hit, NO future requests will be sent.

number;

onError - A function that will be called when a request attempt fails.

(error: StubbornFetchError) => void

shouldRetry (optional) - Called for determining whether a retry attempt should occur. Takes precedence over other retry-related options.

(error: StubbornFetchError, retries: number) => boolean;

logger (optional) - A class or object conforming to the Logging interface which we'll use for logging out request information and events.

Logging = console;

License

MIT