Script Runner create an Issue in Jira by Submitting a Form in Confluence

[SKAdmin]

Due to limitations within the standard issue collectors, I've been exploring the use of Forms for Confluence in conjunction with ScriptRunner to create new Jira Issues. I haven't been able to capture data for custom fields, in particular select list (single or multiple) to pass to Jira at creation.

Has anyone successfully built a rest endpoint that works for this use case ?

Or recommendation for another option for a customizable intake form? 

Documentation I've been using . . . 

https://docs.adaptavist.com/f4cs/latest/use-cases/creating-an-issue-in-jira-by-submitting-a-form-in-confluence

https://library.adaptavist.com/entity/create-jira-issue-from-forms-for-confluence-submission

https://bitbucket.org/Adaptavist/workspace/snippets/jeGxa8/create-jira-issue-from-forms-for

Data Center Jira and Confluence