We are often asked whether it is possible to scrit script the creation of requirements, etc.
...
It is possible to access the details of a Jira issue using:
{baseUrl}/rest/api/latest/issue/{issueKey}
For example, assuming the Jira issue is http://jira.local:2990/jira/browse/SCRUM-10, then the REST API is http://jira.local:2990/jira/rest/api/latest/issue/SCRUM-10.
It is also possible to write into the same URL. For example, go to a Jira issue, open the Javascript console and write the following code (after modifying the parameters) and it will set the requirements to FN-01:
...