Not able Post attachment using rest api from one issue to another issue using script runner cloud

[Yogi Patel]

Able get the attachment in source issue using

copyattachments =   issue.fields.attachment

this give 

[thumbnail:https://company.atlassian.net/rest/api/2/attachment/thumbnail/155060, filename:email2.PNG, size:7835, author:[accountId:627ee641694943006f36cc78, emailAddress:test@company.net, avatarUrls:[48x48:https://secure.gravatar.com/avatar/7533eb0d6b1a82b4c19ad20348ee8277?d=https%3A%2F%2Favatar-management--avatars.us-west-2.prod.public.atl-paas.net%2Finitials%2FYP-2.png, 24x24:https://secure.gravatar.com/avatar/7533eb0d6b1a82b4c19ad20348ee8277?d=https%3A%2F%2Favatar-management--avatars.us-west-2.prod.public.atl-paas.net%2Finitials%2FYP-2.png, 16x16:https://secure.gravatar.com/avatar/7533eb0d6b1a82b4c19ad20348ee8277?d=https%3A%2F%2Favatar-management--avatars.us-west-2.prod.public.atl-paas.net%2Finitials%2FYP-2.png, 32x32:https://secure.gravatar.com/avatar/7533eb0d6b1a82b4c19ad20348ee8277?d=https%3A%2F%2Favatar-management--avatars.us-west-2.prod.public.atl-paas.net%2Finitials%2FYP-2.png], displayName:John Doe, accountType:atlassian, self:https://company.atlassian.net/rest/api/2/user?accountId=627ee641694943006f36cc78, active:true, timeZone:America/Los_Angeles], created:2024-11-22T06:45:04.438-0800, self:https://company.atlassian.net/rest/api/2/attachment/155060, id:155060, mimeType:image/png, content:https://company.atlassian.net/rest/api/2/attachment/content/155060]

then try in to post this attachment in new created issue

def resp2 = post("/rest/api/2/issue/TTEST-123}/attachments")

       .header("Content-Type","application/json")

   .body(copyattachments)//

   //fields: [

         // attachment:copyattachments

    //  ])

    .asJson()

it is given error 

POST request to /rest/api/2/issue/TTEST-123/attachments returned an error code: status: 415 - Unsupported Media Type


Please advise

[Yogi Patel · Accepted solution]

Below solution worked. Thanks @Lukasz Grobelny 

if(selectedFields.contains("Att")){

for(int i = 0; i < attachment.size(); i++ ){

def attId = attachment.id[i]

def att = Unirest.get('/rest/api/2/attachment/' + attId).asObject(Map).body

def downloadUrl = attachment.content[i]

def readFileResp = Unirest.get(downloadUrl).asBinary()

log.warn(downloadUrl)

def response = Unirest.post('/rest/api/2/issue/' + createdIssueKey + '/attachments')

.header("Accept", "application/json")

.header("X-Atlassian-Token", "nocheck")

.field("file", readFileResp.body, att.title.toString())

.asObject(Map)

}

}