Add an attachment to JIRA from Confluence using REST API

[Robert Almendarez]

I have a custom HTML form on Confluence that allows users to enter information and automatically creates an issue on JIRA using the REST API. This works perfectly by making a POST to Confluence's jira-integration API:

[confluence-domain]/rest/jira-integration/1.0/issues?applicationId=xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx

However, this doesn't work at all for attachments. According to the JIRA Cloud API documentation, this should be possible by making a multipart/form POST, with the 'X-Atlassian-Token: no-check' header to:

[jira-domain]/rest/api/2/{issueOrKey}/attachments

This does not work when at all when made through the jira-integration API, with the server returning a 415 Unsupported Media Type.

I've confirmed that i'm sending the correct HTTP request via Postman and curl, but both return the same 415, leading me to question whether or not this is actually possible with the REST API?

Here's the complete curl i'm using:

curl -D- -u admin:admin -X POST -H "X-Atlassian-Token: no-check" -F "file=@B2B.png" 'https://[confluence-domain]/rest/jira-integration/1.0/issues?applicationId=ffbb9c48-84c6-318d-96fc-36722f84a9cf&path=https://[jira-domain]/rest/api/2/issue/TEST-2384/attachments'

And here's the server response:

HTTP/1.1 100 Continue

HTTP/1.1 415 Unsupported Media Type
Server: Apache-Coyote/1.1
X-ASEN: SEN-9445026
X-Confluence-Cluster-Node: 4bd404ad
X-Confluence-Cluster-Node-Name: confluence01
Set-Cookie: JSESSIONID=7F98DA97EAF0E414F802A885A288237C; Path=/; Secure; HttpOnly
X-Seraph-LoginReason: OK
X-AUSERNAME: admin
X-Content-Type-Options: nosniff
Content-Length: 0
Date: Sun, 09 Sep 2018 03:20:22 GMT
Connection: close

[LostInMadness Forever]

Do you  have an exemple in vb or in c plsss ? 

2weekends and i have try everythig, nothing works here...