diff --git a/core/api.go b/core/api.go
index 57ee09f..c5356d9 100644
--- a/core/api.go
+++ b/core/api.go
@@ -26,7 +26,7 @@ import (
 	"go.mongodb.org/mongo-driver/mongo/options"
 )
 
-type fileDocumentDesc struct {
+type FileDocumentDesc struct {
 	Service   string `bson:"service" json:"service"`
 	Key       string `bson:"key" json:"key"`
 	Src       string `bson:"src" json:"src"`
@@ -37,7 +37,7 @@ type fileDocumentDesc struct {
 	Contents  []byte `bson:"contents,omitempty" json:"contents,omitempty"`
 }
 
-func (fd *fileDocumentDesc) save() error {
+func (fd *FileDocumentDesc) save() error {
 	// 새 파일 올라옴
 	if len(fd.Contents) == 0 {
 		return nil
@@ -180,7 +180,7 @@ func (caller apiCaller) uploadAPI(w http.ResponseWriter, r *http.Request) error
 			link = path.Join("static", subfolder, rf, header.Filename)
 		}
 
-		newdoc := fileDocumentDesc{
+		newdoc := FileDocumentDesc{
 			Contents:  contents,
 			Src:       header.Filename,
 			Timestamp: time.Now().UTC().Unix(),