doTransition returns 400 error except when transitioning to 'Done'

[Deleted user]

I am trying to use the JIRA API to allow users to change the status of bugs from my site. I am using a node.js interface to interact with the API. Depending on the current status of the bug, and the desired status, I update the body of the POST with the appropriate status ID and resolution name. Only transitions to 'Done' is are working right now. All other transitions return a 400 HTTP error. I've noticed that I give 'Done' bugs a resolution name of 'Fixed' while my other transitions ('Open' and 'In Progress') have a resolution name of 'Unresolved'. When I remove the resolution name of 'Done' transitions, I also get a 400 error. Could my issues arise from an incorrect resolution name? Here is the code I'm using:

var issueTransition = {
    fields: {
        resolution: {
            name: null
        }
    },
    transition: {
        id: null
    }
};

if(newStatus === currentStatus){
    logger.error("Same Status")
    res.send(400);
}
else{
    switch (currentStatus) {
        case "Open":
            switch (newStatus) {
                case "Done":
                    issueTransition.fields.resolution.name = "Fixed";
                    issueTransition.transition.id = 21;
                    break;
                case "In Progress":
                    //issueTransition.fields.resolution.name = "Unresolved";
                    issueTransition.transition.id = 11;
                    break;
            }
            break;
        case "Done":
            switch (newStatus) {
                case "Open":
                    //issueTransition.fields.resolution.name = "Unresolved";
                    issueTransition.transition.id = 51;
                    break;
                case "In Progress":
                    //issueTransition.fields.resolution.name = "Unresolved";
                    issueTransition.transition.id = 61;
                    break;
            }
            break;
        case "In Progress":
            switch (newStatus) {
                case "Done":
                    issueTransition.fields.resolution.name = "Fixed";
                    issueTransition.transition.id = 41;
                    break;
                case "Open":
                    //issueTransition.fields.resolution.name = "Unresolved";
                    issueTransition.transition.id = 31;
                    break;
            }
            break;
    }


    //Use this to figure out the unique transition Id
    jiraUser.listTransitions(key, function(error, response) {
        if(error) {
            logger.error("Error getting transitions:", error);
            //res.send(500, "Error getting transitions");
        } else {
            logger.info("Successfully got transitions" + JSON.stringify(response));
            //res.send(200, response);
        }
    });


    jiraUser.transitionIssue(key, issueTransition, function(error, response) {
        if(error) {
            logger.error("Error updating status:", error);
            res.send(500, "Error updating issue status");
        } else {
            logger.info("Successfully updated the status to " + newStatus);
            res.send(200);
        }
    });
}

[Deleted user · Accepted solution]

It turns out only transitions to 'Done' can specify a resolution. Since I was setting the name to `null` before my switch, my object was invalid.