display folders and files into

backend/internal/handler/files.go

@@ -242,3 +242,13 @@ func (h *FileHandler) CreateFolder(c *gin.Context) {
 
 	api.Success(c, folder)
 }
+
+func (h *FileHandler) ListFilesByParent(c *gin.Context) {
+	parentID := c.Param("id")
+	files, err := h.files.ListFilesByParentID(parentID)
+	if err != nil {
+		api.Error(c, http.StatusInternalServerError, "DB_ERROR", "Failed to list files in folder")
+		return
+	}
+	api.Success(c, files)
+}

backend/internal/handler/router.go

@@ -12,6 +12,7 @@ func SetupRoutes(r *gin.Engine, h *Handler) {
 	api.POST("/files/move", h.File.MoveFiles)
 	api.POST("/files/folders", h.File.CreateFolder)
 	api.GET("/files/folders", h.File.ListFolders)
+	api.GET("/files/folders/:id/files", h.File.ListFilesByParent)
 	api.GET("/files/download/:id", h.File.Download)
 	api.DELETE("/files/:id", h.File.Delete)
 	api.GET("/files/:id", h.File.Get)