ステータスの変更を示す各遷移オブジェクトには、遷移が発生した日時を含む「作成済み」フィールドがあることがわかりました。展開された changelog オブジェクトの「history」配列内のオブジェクトの例:
{ "author" : { "active" : true,
"avatarUrls" : { "16x16" : "https://company.jira.com/secure/useravatar?size=xsmall&avatarId=10072",
"24x24" : "https://company.jira.com/secure/useravatar?size=small&avatarId=10072",
"32x32" : "https://company.jira.com/secure/useravatar?size=medium&avatarId=10072",
"48x48" : "https://company.jira.com/secure/useravatar?avatarId=10072"
},
"displayName" : "First Last",
"emailAddress" : "first.last@company.com",
"name" : "first.last",
"self" : "https://company.jira.com/rest/api/2/user?username=first.last"
},
"created" : "2013-04-17T16:21:13.540-0400",
"id" : "24451",
"items" : [ { "field" : "status",
"fieldtype" : "jira",
"from" : "5",
"fromString" : "Resolved",
"to" : "6",
"toString" : "Closed"
},
{ "field" : "assignee",
"fieldtype" : "jira",
"from" : "old.assignee",
"fromString" : "Old Assignee",
"to" : "first.last",
"toString" : "First Last"
}
]
}