Comment

Make sure your content-type is multipart/form-data.

curl -F "at=@/your/file/path" \
-F "c=yourComment"
-F "api=" \
-H "Authorization:Basic YOUR_API_KEY_GOES_HERE" \
https://www.ragic.com/demo/ragicsales-order-management/10001/2

In the request body, the value of the parameter c is the comment(required), and the value of the parameter at is the attachment(optional).

You can find your API key in your Personal Settings page.