curl --location --request POST '/api/admin/books' \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data-raw '{
"titleEn": "The Desire of Ages",
"description": "The life story of Jesus Christ."
}'{
"id": "c3d4e5f6-a7b8-9012-cdef-123456789012",
"slug": "the-desire-of-ages"
}