Exponential Backoff

Info

Exponential backoff is when the time waited between each retry gets exponentially bigger and bigger.

This is probably one of the better ways to do retries and is really great for things like reminders for a payment or dealing with limited resources.

Payment processors utilise exponential backoff for purchase retries.

Example

Here is an example how you can calculate a longer retry delay with each retry attempt.

function exponentialBackoff(retryCount: number, maxRetries: number): number {
	const retryDelay = Math.pow(2, retryCount) * 1000;
	return Math.min(retryDelay, maxRetries);
}