Backoff Reference/Example

backoff.go

package main

import (
    "context"
    "errors"
    "fmt"
    "os"
    "time"

    "github.com/cenkalti/backoff"
)

// NOTE: These are just samples, always test and determine the correct time scale.
const (
    allocInitialInterval = 10 * time.Millisecond
    allocMaxInterval     = 300 * time.Millisecond
    allocMaxElapsedTime  = 1 * time.Minute
)

func main() {
    exp := backoff.NewExponentialBackOff()
    exp.InitialInterval = allocInitialInterval
    exp.MaxInterval = allocMaxInterval
    exp.MaxElapsedTime = allocMaxElapsedTime

    endTime := time.Now().Add(60 * time.Second)

    retryFunc := func() error {
        if time.Now().Before(endTime) {
            fmt.Println(time.Now())
            return errors.New("screwed up")
        }

        fmt.Println(time.Now())
        return nil
    }

    err := backoff.Retry(retryFunc, backoff.WithContext(exp, context.Background()))
    if err != nil {
        fmt.Println(err)
        os.Exit(1)
    }
}