Golang WithRetries wrapper

retries.go

package retries

import "time"

// WithRetries will continue to attempt an operation
// up to the specified number of retries with an exponential
// backoff. If the operation is still unsuccessful
// after all retries are exhausted (operation returns an error),
// that error is returned.
func WithRetries(retries int, operation func() error) error {
	err := operation()
	backoff := time.Second * 2
	for err != nil && retries > 0 {
		time.Sleep(backoff)
		retries--
		backoff *= 2
		err = operation()
	}
	return err
}