We have implemented the following API
https://docs.atlassian.com/jira-servicedesk/REST/4.8.1/
To attach files from
POST / rest / servicedeskapi / request / {issueIdOrKey} / attachment
We use.
But the attached file link is not seen in the comments
GET / rest / servicedeskapi / request / {issueIdOrKey. / Comment
GET / rest / servicedeskapi / request / {issueIdOrKey} / comment / {commentId}
We cannot use the following service.
GET / rest / servicedeskapi / request / {issueIdOrKey} / attachment
Thank you for your help