Can someone help please. Am trying to send attachment from service manager to JIRA via REST API using POST from Javascript. Using doHTTPRequest but keep getting Error 500. Not sure what is going wrong. script below, attc[0] is attachment object fetched from system.

doAttachOut("POST",url ,attc[0].value,20,attc,null,attchmentName);

function doAttachOut(httpAction,url,binaryData,timeout,attachmentObj,param,attchmentName) {
     var JSON = system.library.JSON.json(); 
     var headers= new Array();
     headers.push(new Header("Authorization",  "Basic token")); 
     headers.push(new Header("X-Atlassian-Token", "no-check"));
     headers.push(new Header("Content-Type", "multipart/form-data"));
     headers.push(new Header("Accept", "application/json"));  
     headers.push(new Header("Content-Disposition", "attachment;file=@"+attchmentName));
  
    try {
        var respHeaders = new Object();
        var resp = doHTTPRequest(httpAction, url, headers, binaryData, 20, 20, null, respHeaders);
        //var resp = doHTTPRequest(httpAction, url, headers, null, 20, 20);
        print(resp); 
        var objResponse = JSON.parse(resp);
        print("Messages: \n"+objResponse.Messages.join("\n"));
        print("Return Code: "+objResponse.ReturnCode); 
        print("Attachment Name: "+objResponse.attachment.name)
    }
    catch( cError ) 
    {
        print("ERROR: \n"+cError);
    }
  return resp;
}

Thanks