I haven't tried updating 'resolution' itself but here has been my general approach:
Assuming it's a field: https://docs.atlassian.com/jira/REST/latest/#idp1378416 That's what I used for my downloaded version of JIRA and my assumption would be that the on demand api would be very likely the same. What I did to be able to see all available options is to first make a call to https://docs.atlassian.com/jira/REST/latest/#idp1448896 and then grabbed all possible field options.
If the resolutions don't appear from the editmeta call it could be counted as a 'transition'. If so, then you'll want to use this instead: https://docs.atlassian.com/jira/REST/latest/#idp1351200 This has both a GET and a POST so you can verify you are doing it correct, but I'm pretty sure only a status counts as a transition (although when you are doing a transition you can also set the field options so yu can theoretically update resolution through there)
Hey Community mates! Claire here from the Software Product Marketing team. We all know software development changes rapidly, and it's often tough to keep up. But from our research, we've found the h...
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG
You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs