How to change Issue Status via C# API

[Chris]

Hi,

I'm using Atlassian.Jira.dll and have already connected successfully.

I can fetch an issue without problems and have also managed to leave a comment on it via API. Now I need to update and set the issue status to "xyz". How can I do that?

I've already tried issue.SetPropertyAsync(), jira.Issues.UpdateIssueAsync(), among other things. ChatGPT also wasn't of any help either.

I think UpdateIssueAsync() is the right way to go, but I can't figure out how to set the issue status. issue.Status is read only.

Can anybody help? Here's the code snippet:

// Jira Client
Atlassian.Jira.Jira jira = GetJiraClient();

if (jira == null)
     return;

// Get relevant issues
string jql_query = $"project = \"12345\"";
IPagedQueryResult<Issue> jira_issues = jira.Issues.GetIssuesFromJqlAsync(jql_query).Result;

if (jira_issues == null || !jira_issues.Any())
     return;

string new_status = "New Status";
foreach (Issue issue in jira_issues)
{
     // Change issue values here

     // Update issue status here
     jira.Issues.UpdateIssueAsync(issue);
}

[Chris · Accepted solution]

Figured it out myself.

The way to do this is to set the transition rather than the status:

jira_issue.WorkflowTransitionAsync(new_status).GetAwaiter().GetResult();

I'm honestly quite disappointed that nobody here was able to provide this simple fix. I surely can't be the first person ever to change a jira status via the API.