Backoff strategies for retrying things like HTTP requests.
npm install @ambassify/backoff-strategies
Backoff strategies for retrying things like HTTP requests.
``shell`
npm install --save @ambassify/backoff-strategies
Strategies are attached to the default import of this package and can be accessed using.
Every strategy will return a new function that accepts the amount of attempts that were previously executed as its only parameter and returns the matching delay.
`javascript
const { exponential, linear } = require('@ambassify/backoff-strategies');
// Usage:
const linearDelayGenerator = linear(50);
linearDelayGenerator(0); // 0
linearDelayGenerator(1); // 50
linearDelayGenerator(2); // 100
`
constant
function constant(delay) {}
f(x) = delay
Always returns the same delay, no matter how many attempts are passed in.
linear
function linear(delay) {}
f(x) = x * delay
The delay shows linear growth for every attempt.
exponential
function exponential(delay, factor = 2) {}
f(x) = (factor ^ (x - 1)) * delay (exception: f(0) = 0)
The delay shows exponential growth by a specific factor
binary exponential
function binaryExponential(delay) {}
f(x) = random(0, ((2 ^ x) − 1)) * delay`
The delay shows binary exponential growth as explained here
We really appreciate any contribution you would like to make, so don't
hesitate to report issues or submit pull requests.
This project is released under a MIT license.
If you would like to know more about us, be sure to have a look at our website, or our Twitter accounts Ambassify, Sitebase, JorgenEvens