curl --location --request POST '/api/user/register' \
--header 'Content-Type: application/json' \
--data-raw '{
"name": "Nguyen Van A",
"email": "user@example.com",
"password": "password123",
"first_name": "Van A",
"last_name": "Nguyen"
}'{
"message": "Operation successful",
"data": {}
}