Jenkins integration with Jira


I hope you are doing well!

I would like to make a connection between jira and jenkins.
I succeed with some plugins to make the integration, - with some webhooks, I can trigger the jobs from jira, and with a post to send back the info about the jobs.

But in the end the task was a bit different.

To get all the jobs name in Jira in a custom field, and to be able to trigger the builds when you select a value in this field.

The question that i have:
How can I get with rest the list of the builds from a folder(I have a plugin in Jira that can store the values in fields)

But I need also there to make the connection with Jenkins(please advise also here)