curl --request POST \
  --url https://your-instance.example.com/api/conversation/csat \
  --header 'Content-Type: application/json' \
  --data '
{
  "webchatId": "<string>",
  "rating": 123,
  "feedback": "<string>"
}
'

{
  "success": true,
  "conversationId": "<string>",
  "csatRating": 123,
  "csatSubmittedAt": "2023-11-07T05:31:56Z"
}