feat: add optional prefix and region fields to S3 configuration

config/s3.go

@@ -9,6 +9,8 @@ type S3Config struct {
 	AccessKey string `cli:"accesskey" env:"ACCESS_KEY"`
 	SecretKey string `cli:"secretkey" env:"SECRET_KEY"`
 	Bucket    string `cli:"bucket" env:"BUCKET"`
+	Prefix    string `cli:"prefix" env:"PREFIX"`
+	Region    string `cli:"region" env:"REGION"`
 	UseSSL    bool   `cli:"usessl" env:"USE_SSL"`
 }
 

main.go

@@ -48,6 +48,10 @@ func main() {
 	secretKeyEntry.Password = true
 	bucketEntry := widget.NewEntry()
 	bucketEntry.SetText(cfg.Bucket)
+	prefixEntry := widget.NewEntry()
+	prefixEntry.SetPlaceHolder("Optional Prefix")
+	regionEntry := widget.NewEntry()
+	regionEntry.SetPlaceHolder("Optional Region")
 	sslCheck := widget.NewCheck("Use SSL (HTTPS)", nil)
 	sslCheck.SetChecked(cfg.UseSSL)
 
@@ -57,13 +61,17 @@ func main() {
 			{Text: "Access Key", Widget: accessKeyEntry},
 			{Text: "Secret Key", Widget: secretKeyEntry},
 			{Text: "Bucket Name", Widget: bucketEntry},
+			{Text: "Region", Widget: regionEntry},
+			{Text: "Prefix", Widget: prefixEntry},
 		},
 		OnSubmit: func() {
 			cfg.Endpoint = endpointEntry.Text
 			cfg.AccessKey = accessKeyEntry.Text
 			cfg.SecretKey = secretKeyEntry.Text
 			cfg.Bucket = bucketEntry.Text
 			cfg.UseSSL = sslCheck.Checked
+			cfg.Prefix = prefixEntry.Text
+			cfg.Region = regionEntry.Text
 
 			s3svc, err := s3.New(cfg)
 			if err != nil {

s3/service.go

@@ -16,17 +16,19 @@ import (
 type Service struct {
 	client     *minio.Client
 	bucketName string
+	prefix     string
 }
 
 func New(cfg config.S3Config) (*Service, error) {
 	client, err := minio.New(cfg.Endpoint, &minio.Options{
+		Region: cfg.Region,
 		Creds:  credentials.NewStaticV4(cfg.AccessKey, cfg.SecretKey, ""),
 		Secure: cfg.UseSSL,
 	})
 	if err != nil {
 		return nil, fmt.Errorf("failed to connect to server: %w", err)
 	}
-	return &Service{client, cfg.Bucket}, nil
+	return &Service{client: client, bucketName: cfg.Bucket, prefix: cfg.Prefix}, nil
 }
 
 func (s *Service) ListObjects(ctx context.Context) ([]minio.ObjectInfo, error) {
@@ -50,6 +52,7 @@ func (s *Service) DeleteObject(ctx context.Context, objectName string) error {
 func (s *Service) UploadObject(filePath string, data []byte) error {
 	ctx := context.Background()
 	objectName := filepath.Base(filePath)
+
 	_, err := s.client.PutObject(ctx, s.bucketName, objectName,
 		bytes.NewReader(data),
 		int64(len(data)),
@@ -65,7 +68,7 @@ func (s *Service) DownloadObject(ctx context.Context, objectName string) (io.Rea
 
 func (s *Service) ListObjectsBatch(ctx context.Context, startAfter string, batchSize int) ([]minio.ObjectInfo, error) {
 	opts := minio.ListObjectsOptions{
-		Prefix:     "",
+		Prefix:     s.prefix,
 		Recursive:  true,
 		StartAfter: startAfter,
 	}