Groovy BR REST API Send Email v2 Attachments

Summary:

Groovy business rule to send email using v2 is working except attachments.

Content (required):

Cannot seem to get the parameters syntax correct.

Version (include the version you are using, if applicable):

PBCS

Code Snippet (add any code snippets that support your topic, if applicable):

if (emailAttachments.size() > 0) { queryParam.put('attachments',emailAttachments.join(',')) } ; println queryParam

HttpResponse<String> jsonResponse = connection.post(urlSendmail)

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

.body(json(body))

.queryParam('parameters',json(queryParam))

.asString()