Request ACM certificate with DNS validation in Go

func requestCertificate(domainName, hostedZoneId string) (string, error) {    cfg := &aws.Config{        Region: aws.String(config.Region),    }    svc := acm.New(session.New(), cfg)    input := &acm.RequestCertificateInput{        DomainName:       aws.String(domainName),        IdempotencyToken: aws.String(strings.Replace(domainName, ".", "", -1)),        ValidationMethod: aws.String("DNS"),        SubjectAlternativeNames: []*string{            aws.String("*." + domainName),        },        DomainValidationOptions: []*acm.DomainValidationOption{            {                DomainName:       aws.String(domainName),                ValidationDomain: aws.String(domainName),            },        },    }    result, err := svc.RequestCertificate(input)    if err != nil {        return "", err    }    time.Sleep(time.Second * 10) // This MUST be long enough, o.w. the validation options won't be available    dcIn := &acm.DescribeCertificateInput{        CertificateArn: result.CertificateArn,    }    c, err := svc.DescribeCertificate(dcIn)    if err != nil {        return "", err    }    if c.Certificate.DomainValidationOptions == nil {        errMsg := "DomainValidationOptions does not exists"        logrus.Error(errMsg)        return "", errors.New(errMsg)    }    fmt.Println("DomainValidationOptions: ", c.Certificate.DomainValidationOptions) // ---> Log at the bottom    for _, dvo := range c.Certificate.DomainValidationOptions {        vRecordName := dvo.ResourceRecord.Name // -----> this is nil and causes panic        vRecordValue := dvo.ResourceRecord.Value        createRoute53Record(*vRecordName, *vRecordValue, hostedZoneId)    }    return *result.CertificateArn, nil}func createRoute53Record(domain, value, hostedZoneId string) error {    cfg := &aws.Config{        Region: aws.String(config.Region),    }    if config.Configs.App.RunLocally {        creds := credentials.NewStaticCredentials(config.Configs.Secrets.AwsAccessKeyId, config.Configs.Secrets.AwsSecretAccessKey, "")        cfg = aws.NewConfig().WithRegion(config.Configs.Upload.S3Region).WithCredentials(creds)    }    svc := route53.New(session.New(), cfg)    resourceRecordSet := &route53.ResourceRecordSet{        Name: aws.String(domain + "."),        Type: aws.String("CNAME"),        ResourceRecords: []*route53.ResourceRecord{            {                Value: aws.String(value),            },        },        TTL: aws.Int64(300),    }    upsert := []*route53.Change{{        Action:            aws.String("UPSERT"),        ResourceRecordSet: resourceRecordSet,    }}    // Put it into a pretty envelope with a stamp for route53#zoneId and change ticket    params := route53.ChangeResourceRecordSetsInput{        ChangeBatch: &route53.ChangeBatch{            Changes: upsert,        },        HostedZoneId: aws.String(hostedZoneId),    }    // Post it    _, err := svc.ChangeResourceRecordSets(&params)    if err != nil {        logrus.Error(err.Error())    }    return err}