[Go retry] #go #golang #retry

main.go

package main

import (
	"context"
	"fmt"
	"time"

	"github.com/sethvargo/go-retry"
)

func main() {
	ctx := context.Background()

	b := retry.NewConstant(1 * time.Second)
	b = retry.WithMaxRetries(3, b)

	count := 0

	if err := retry.Do(ctx, b, func(_ context.Context) error {
		count++
		if count < 5 {
			fmt.Println("error to retry")
			return retry.RetryableError(fmt.Errorf("whoops"))
		}
		return nil
	}); err != nil {
		fmt.Println("error happened:", err)
		return
	}

	fmt.Println("success")
}