This article describes getting your JIRA information into your data destination via a REST API input.
From the Plumbing page, select Add new input.
Select REST API from the list of inputs.
Enter a name for the input. We’ll use the input name in the UI and to name the events that come from this input. Note that after creation, the input name cannot be changed.
Enter your JIRA API url and leave the HTTP method as GET.
Enter your JIRA API username and password.
Specify the endpoint parameters and data fields you'd like to retrieve.
Click Create Input. That's all there is to it. You may need to enter various endpoints and data fields, depending on your JIRA configuration and what data you are importing into your data destination.