edit: response.message

frontend_management/services/instructor.service.ts

@@ -214,14 +214,18 @@ export const instructorService = {
         }
 
         // Clean data - remove empty thumbnail_url
+
         const cleanedData = { ...data };
         if (!cleanedData.thumbnail_url) {
             delete cleanedData.thumbnail_url;
         }
 
+        const formData = new FormData();
+        formData.append('data', JSON.stringify(cleanedData));
+
         return await authRequest<ApiResponse<CourseResponse>>('/api/instructors/courses', {
             method: 'POST',
-            body: cleanedData
+            body: formData
         });
     },