How can i pull the resolution status of jira issue

[SMM]

I did a rest call to pull all the jira items but resolution status is null. Not sure why its null when all other fields are pulled.

[Nic Brough -Adaptavist-]

Please, avoid saying "resolution status".  They are separate, independent things in JIRA that mean two completely different things.

A null resolution is what it suggests - the resolution has not been set.  The JIRA GUI has code that says "when empty, display 'unresolved'", but the REST call gives you the actual data of "no value here"