Deleting file from AWS S3 using Go

DeleteFromS3.go

func DeleteFromS3(dir string, filename string) error {
    log.Debug("Deleting media from amazon s3 server...")

    fileDestination := filename
    if len(dir) > 0 {
        fileDestination = dir + "/" + filename
    }

    svc := s3.New(session.Must(session.NewSession(&aws.Config{
        Region: aws.String(config.S3.Region),
    })))

    input := &s3.DeleteObjectInput{
        Bucket: aws.String(config.S3.Bucket),
        Key:    aws.String(fileDestination),
    }

    _, err := svc.DeleteObject(input)
    if err != nil {
        if aerr, ok := err.(awserr.Error); ok {
            switch aerr.Code() {
            case s3.ErrCodeNoSuchKey:
                log.Error(fmt.Sprintf("No such key: %s", fileDestination))
            default:
                log.Error(fmt.Sprintf("Failed to delete object: %s", aerr.Error()))
            }
        } else {
            log.Error(fmt.Sprintf("Failed to delete object: %s", err.Error()))
        }
        return err
    }

    // Optionally, you may want to confirm the deletion by waiting until the object is deleted
    err = svc.WaitUntilObjectNotExists(&s3.HeadObjectInput{
        Bucket: aws.String(config.S3.Bucket),
        Key:    aws.String(fileDestination),
    })
    if err != nil {
        log.Error(fmt.Sprintf("Error occurred while waiting for object to be deleted: %s", err.Error()))
        return err
    }

    log.Debug("Successfully deleted media from amazon s3 server")
    return nil
}