通过 REST 获取工作项的父级 API

Getting parent of work item through REST API

我们正在开发 Azure DevOps 扩展以将对工作项的更改推送到外部系统。

我们想要 maintain/preserve 目标系统中 Azure DevOps 中的层次结构(Epic-> Feature -> PBI/Bug),因此我们需要弄清楚工作项有哪个父项。

当从API中拉取工作项实体时,它看起来像这样(缩写了一点)

{
    "id": 5202,
    "rev": 2,
    "fields": {
        "System.WorkItemType": "Task",
        "System.State": "To Do",
        "System.Reason": "New task",
        "System.CreatedDate": "2017-10-30T10:18:06.233Z",
        "System.CreatedBy": "Jesper Lund Stocholm",
        "Microsoft.VSTS.Common.Priority": 2,
        "Microsoft.VSTS.Scheduling.RemainingWork": 23.0,
        "Microsoft.VSTS.Common.StateChangeDate": "2017-10-30T10:18:06.233Z",
    },
    "_links": {
            "self": {
            "href": "https://{myorg}.visualstudio.com/_apis/wit/workItems/5202"
        },
        "workItemUpdates": {
            "href": "https://{myorg}.visualstudio.com/_apis/wit/workItems/5202/updates"
        },
        "workItemRevisions": {
            "href": "https://{myorg}.visualstudio.com/_apis/wit/workItems/5202/revisions"
        },
        "workItemHistory": {
            "href": "https://{myorg}.visualstudio.com/_apis/wit/workItems/5202/history"
        },
        "html": {
            "href": "https://{myorg}.visualstudio.com/web/wi.aspx?pcguid=e5d991b2-9879-497c-85fb-c618f144a9c5&id=5202"
        },
        "workItemType": {
            "href": "https://{myorg}.visualstudio.com/6847ebed-cbca-4510-8baa-228c7c55ba8d/_apis/wit/workItemTypes/Task"
        },
        "fields": {
            "href": "https://{myorg}.visualstudio.com/_apis/wit/fields"
        }
    },
    "url": "https://{myorg}.visualstudio.com/_apis/wit/workItems/5202"
}

显而易见的地方是这里 https://{myorg}.visualstudio.com/_apis/wit/fields

但是我们找不到任何对 "parent entity" 的引用痕迹。

难道这个值没有暴露是真的吗?

您可以通过将 $expand=relations 添加到 api 字符串来获取所有工作项链接(父项、子项等)。

例如:

https://shaykia.visualstudio.com/_apis/wit/workItems/4?$expand=relations

在结果中您将看到 "relations" 部分:

"relations": [
    {
      "rel": "System.LinkTypes.Hierarchy-Forward",
      "url": "http:/shaykia.visualstudio.com/_apis/wit/workItems/11",
      "attributes": {
        "isLocked": false
      }
    },
    {
      "rel": "System.LinkTypes.Hierarchy-Reverse",
      "url": "http://shaykia.visualstudio.com/_apis/wit/workItems/3",
      "attributes": {
        "isLocked": false
      }
    }
  ], 

System.LinkTypes.Hierarchy-Reverse 用于父级(在本例中,id 为 3 的工作项是父级),System.LinkTypes.Hierarchy-Forward 用于子级。