暂存

pkg/storage/storage.go

@@ -8,6 +8,8 @@ import (
 
 type Provider interface {
 	Upload(ctx context.Context, key string, reader io.Reader, contentType string) error
+	UploadWithMetadata(ctx context.Context, key string, reader io.Reader, contentType string, metadata map[string]string) error
+	Stat(ctx context.Context, key string) (*ObjectMetadata, error)
 	Download(ctx context.Context, key string) (io.ReadCloser, error)
 	DownloadToTemp(ctx context.Context, key string) (localPath string, cleanup func(), err error)
 	Delete(ctx context.Context, key string) error
@@ -15,3 +17,10 @@ type Provider interface {
 	GetUploadURL(ctx context.Context, key string, contentType string, expires time.Duration) (string, error)
 	GetDownloadURL(ctx context.Context, key string, expires time.Duration) (string, error)
 }
+
+// ObjectMetadata 是对象存储返回的受控对象属性。
+type ObjectMetadata struct {
+	Size        int64
+	ContentType string
+	Metadata    map[string]string
+}