Returns a paginated list of issue-type scheme items. Only issue type scheme items used in classic projects are returned.
Get issue type schemes for projects
GET /rest/api/{2-3}/issuetypescheme/project
Returns a paginated list of issue type schemes and, for each issue type scheme, a list of the projects that use it. Only issue type schemes used in classic projects are returned.
Assign issue type scheme to project
PUT /rest/api/{2-3}/issuetypescheme/project
Assigns an issue type scheme to a project. If any issues in the project are assigned issue types not present in the new scheme, the operation will fail.
To complete the assignment those issues must be updated to use issue types in the new scheme.
Update issue type scheme
PUT /rest/api/{2-3}/issuetypescheme/{issueTypeSchemeId}
Deletes an issue type scheme. Only issue type schemes used in classic projects can be deleted. Any projects assigned to the scheme are reassigned to the default issue type scheme.
Add issue types to issue type scheme
PUT /rest/api/{2-3}/issuetypescheme/{issueTypeSchemeId}/issuetype
Adds issue types to an issue type scheme. The added issue types are appended to the issue types list. If any of the issue types exist in the issue type scheme, the operation fails and no issue types are added.