diff --git a/internal/handlers/collections.go b/internal/handlers/collections.go
index f2b4c6b..9572024 100644
--- a/internal/handlers/collections.go
+++ b/internal/handlers/collections.go
@@ -487,3 +487,13 @@ func (h *CollectionHandler) GetCollectionData(c echo.Context, collectionID uuid.
 func (h *CollectionHandler) GetCollectionBooksData(c echo.Context, collectionID uuid.UUID) ([]database.GetCollectionItemsRow, error) {
 	return h.collectionService.GetCollectionBooks(c.Request().Context(), collectionID)
 }
+
+func (h *CollectionHandler) GetDeviceMappingsData(c echo.Context, deviceID uuid.UUID) ([]database.GetDeviceShelfMappingsRow, error) {
+	return h.collectionService.GetDeviceShelfMappings(c.Request().Context(), deviceID)
+}
+
+func (h *CollectionHandler) GetUserCollectionsList(c echo.Context) ([]database.Collections, error) {
+	user := c.Get("user").(database.Users)
+	userUUID := uuid.UUID(user.ID.Bytes)
+	return h.collectionService.GetUserCollections(c.Request().Context(), userUUID)
+}