curl --location -g --request POST '{{url}}/api/v1/meetings/b8324683-fb70-41ce-9d19-bf140b02371b/materials' \
--header 'Authorization: Bearer {{token}}' \
--header 'Content-Type: application/json' \
--data-raw '{
"title": "Materi Nopal",
"description": "Kerjakan soal linked list dan concurrency",
"url": "https://example.com/thumbnails/batch-pagi.jpg"
}'{
"error": {
"GroupID": "GroupID harus berupa UUID v4"
},
"message": "Validasi gagal",
"success": false
}