diff --git a/internal/middleware/device_auth.go b/internal/middleware/device_auth.go
index c46e4b3..5c6daed 100644
--- a/internal/middleware/device_auth.go
+++ b/internal/middleware/device_auth.go
@@ -2,6 +2,7 @@ package middleware
 
 import (
 	"bookmann/internal/database"
+	"context"
 	"net/http"
 	"strings"
 
@@ -173,3 +174,7 @@ func (m *DeviceAuthMiddleware) UpdateLastSeen(next echo.HandlerFunc) echo.Handle
 		return err
 	}
 }
+
+func (m *DeviceAuthMiddleware) ValidateDeviceToken(token string) (database.Devices, error) {
+	return m.db.GetDeviceByAuthToken(context.Background(), token)
+}