SharePoint 2013 - REST Service

0. SharePoint 2013使用_api来标识出 REST SERVICE，REST Service其实是 client.svc web service的一部分，但为了简化 REST URI的构造以及缩短REST URI的长度，使用 _api 来替代 _vti_bin/client.svc，例如, 你可以使用 http://server/site/_vti_bin/client.svc/web/lists 来替代 http://server/site/_api/web/lists；然而URL有256字符长度的限制，所以建议使用 _api 惯例；可参考此文章中的 Reference the SharePoint 2013 REST service in your endpoint URI 章节；

SharePoint 2013 REST Syntax Posters.pdf

工具：Chrome浏览器中的 Advanced Rest Client Application插件

1. Search REST API的query(GET)可以设置返回json格式的结果，存储在data.d.query.PrimaryQueryResult.RelevantResults.Table.Rows.results中，results是个数据集合，序号从0开始；

2. 使用REST API获取(GET)数据时，若返回多条记录，则返回值存储在data.d.results中，results是个数据集合，序号从0开始，每一个result包含一个对象单元信息，例如：一个List Item的所有属性，如代码所示；若返回单条记录，则返回值存储在data.d中；

{
"__metadata":{"id":"b719e719-e4cc-445c-9c7c-0250aba4338a",
"uri":"https://gjq-11683d04060f3b.sharepoint.com/BasicOperationApp/_api/Web/Lists(guid'b44e6daf-ee1e-4249-987f-2f9305cdc884')/Items(1)",
"etag":"\"4\"","type":"SP.Data.TasksListItem"},
"FirstUniqueAncestorSecurableObject":{"__deferred":{"uri":"https://gjq-11683d04060f3b.sharepoint.com/BasicOperationApp/_api/Web/Lists(guid'b44e6daf-ee1e-4249-987f-2f9305cdc884')/Items(1)/FirstUniqueAncestorSecurableObject"}},
"RoleAssignments":{"__deferred":{"uri":"https://gjq-11683d04060f3b.sharepoint.com/BasicOperationApp/_api/Web/Lists(guid'b44e6daf-ee1e-4249-987f-2f9305cdc884')/Items(1)/RoleAssignments"}},
"AttachmentFiles":{"__deferred":{"uri":"https://gjq-11683d04060f3b.sharepoint.com/BasicOperationApp/_api/Web/Lists(guid'b44e6daf-ee1e-4249-987f-2f9305cdc884')/Items(1)/AttachmentFiles"}},
"ContentType":{"__deferred":{"uri":"https://gjq-11683d04060f3b.sharepoint.com/BasicOperationApp/_api/Web/Lists(guid'b44e6daf-ee1e-4249-987f-2f9305cdc884')/Items(1)/ContentType"}},
"FieldValuesAsHtml":{"__deferred":{"uri":"https://gjq-11683d04060f3b.sharepoint.com/BasicOperationApp/_api/Web/Lists(guid'b44e6daf-ee1e-4249-987f-2f9305cdc884')/Items(1)/FieldValuesAsHtml"}},
"FieldValuesAsText":{"__deferred":{"uri":"https://gjq-11683d04060f3b.sharepoint.com/BasicOperationApp/_api/Web/Lists(guid'b44e6daf-ee1e-4249-987f-2f9305cdc884')/Items(1)/FieldValuesAsText"}},
"FieldValuesForEdit":{"__deferred":{"uri":"https://gjq-11683d04060f3b.sharepoint.com/BasicOperationApp/_api/Web/Lists(guid'b44e6daf-ee1e-4249-987f-2f9305cdc884')/Items(1)/FieldValuesForEdit"}},
"File":{"__deferred":{"uri":"https://gjq-11683d04060f3b.sharepoint.com/BasicOperationApp/_api/Web/Lists(guid'b44e6daf-ee1e-4249-987f-2f9305cdc884')/Items(1)/File"}},
"Folder":{"__deferred":{"uri":"https://gjq-11683d04060f3b.sharepoint.com/BasicOperationApp/_api/Web/Lists(guid'b44e6daf-ee1e-4249-987f-2f9305cdc884')/Items(1)/Folder"}},
"ParentList":{"__deferred":{"uri":"https://gjq-11683d04060f3b.sharepoint.com/BasicOperationApp/_api/Web/Lists(guid'b44e6daf-ee1e-4249-987f-2f9305cdc884')/Items(1)/ParentList"}},
"FileSystemObjectType":0,
"Id":1,
"ContentTypeId":"0x0108005943A401D04CAD47AE81ABAA54AA39A3",
"Title":"Test",
"PredecessorsId":{"__metadata":{"type":"Collection(Edm.Int32)"},"results":[]},
"Priority":"(2) Normal",
"Status":"Not Started",
"PercentComplete":0.79,
"AssignedToId":11,
"TaskGroupId":null,
"Body":"<div></div>",
"StartDate":"2014-08-10T16:00:00Z",
"DueDate":"2014-08-27T16:00:00Z",
"RelatedItems":null,
"WorkflowLink":null,
"OffsiteParticipant":null,
"OffsiteParticipantReason":null,
"WorkflowOutcome":null,
"WorkflowName":null,
"GUID":"2c618f60-7fae-4689-a652-52458ae60dd6",
"ID":1,
"Modified":"2014-08-12T03:41:59Z",
"Created":"2014-08-11T01:57:18Z",
"AuthorId":11,
"EditorId":11,
"OData__UIVersionString":"4.0",
"Attachments":false
}

3. 使用REST API的一些建议：

• If you’re not using the cross-domain library, include an X-RequestDigest header to send the form digest value in all POST requests and a content-lengthheader for POST requests that send data in the request body.

• If you're not making cross-domain requests, remove SP.AppContextSite(@target) and ?@target='<host web url>' from the endpoint URI.

• If you’re using OAuth, include an Authorization header ("Authorization": "Bearer " + <access token>) to send the OAuth access token.

• If you want the server to return responses in Atom format, remove the "accept": "application/json; odata=verbose" header.

4. 使用REST API获取对象信息时，只能获取到当前级别信息，类似于Client Object Model，比如 /_api/web/lists可以获得所有list信息，但没有list item的信息；例如：一个List的所有属性，

{
"__metadata":
  {
  "id":"https://gjq-11683d04060f3f.sharepoint.com/BasicOperationApp/_api/Web/Lists(guid'9b64f833-6b28-4bf4-b02d-31e6f1d649e6')",
  "uri":"https://gjq-11683d04060f3f.sharepoint.com/BasicOperationApp/_api/Web/Lists(guid'9b64f833-6b28-4bf4-b02d-31e6f1d649e6')",
  "etag":"\"3\"",
  "type":"SP.List"
  },
"FirstUniqueAncestorSecurableObject":{"__deferred":{"uri":"https://gjq-11683d04060f3f.sharepoint.com/BasicOperationApp/_api/Web/Lists(guid'9b64f833-6b28-4bf4-b02d-31e6f1d649e6')/FirstUniqueAncestorSecurableObject"}},
"RoleAssignments":{"__deferred":{"uri":"https://gjq-11683d04060f3f.sharepoint.com/BasicOperationApp/_api/Web/Lists(guid'9b64f833-6b28-4bf4-b02d-31e6f1d649e6')/RoleAssignments"}},
"ContentTypes":{"__deferred":{"uri":"https://gjq-11683d04060f3f.sharepoint.com/BasicOperationApp/_api/Web/Lists(guid'9b64f833-6b28-4bf4-b02d-31e6f1d649e6')/ContentTypes"}},
"CreatablesInfo":{"__deferred":{"uri":"https://gjq-11683d04060f3f.sharepoint.com/BasicOperationApp/_api/Web/Lists(guid'9b64f833-6b28-4bf4-b02d-31e6f1d649e6')/CreatablesInfo"}},
"DefaultView":{"__deferred":{"uri":"https://gjq-11683d04060f3f.sharepoint.com/BasicOperationApp/_api/Web/Lists(guid'9b64f833-6b28-4bf4-b02d-31e6f1d649e6')/DefaultView"}},
"DescriptionResource":{"__deferred":{"uri":"https://gjq-11683d04060f3f.sharepoint.com/BasicOperationApp/_api/Web/Lists(guid'9b64f833-6b28-4bf4-b02d-31e6f1d649e6')/DescriptionResource"}},
"EventReceivers":{"__deferred":{"uri":"https://gjq-11683d04060f3f.sharepoint.com/BasicOperationApp/_api/Web/Lists(guid'9b64f833-6b28-4bf4-b02d-31e6f1d649e6')/EventReceivers"}},
"Fields":{"__deferred":{"uri":"https://gjq-11683d04060f3f.sharepoint.com/BasicOperationApp/_api/Web/Lists(guid'9b64f833-6b28-4bf4-b02d-31e6f1d649e6')/Fields"}},
"Forms":{"__deferred":{"uri":"https://gjq-11683d04060f3f.sharepoint.com/BasicOperationApp/_api/Web/Lists(guid'9b64f833-6b28-4bf4-b02d-31e6f1d649e6')/Forms"}},
"InformationRightsManagementSettings":{"__deferred":{"uri":"https://gjq-11683d04060f3f.sharepoint.com/BasicOperationApp/_api/Web/Lists(guid'9b64f833-6b28-4bf4-b02d-31e6f1d649e6')/InformationRightsManagementSettings"}},
"Items":{"__deferred":{"uri":"https://gjq-11683d04060f3f.sharepoint.com/BasicOperationApp/_api/Web/Lists(guid'9b64f833-6b28-4bf4-b02d-31e6f1d649e6')/Items"}},
"ParentWeb":{"__deferred":{"uri":"https://gjq-11683d04060f3f.sharepoint.com/BasicOperationApp/_api/Web/Lists(guid'9b64f833-6b28-4bf4-b02d-31e6f1d649e6')/ParentWeb"}},
"RootFolder":{"__deferred":{"uri":"https://gjq-11683d04060f3f.sharepoint.com/BasicOperationApp/_api/Web/Lists(guid'9b64f833-6b28-4bf4-b02d-31e6f1d649e6')/RootFolder"}},
"TitleResource":{"__deferred":{"uri":"https://gjq-11683d04060f3f.sharepoint.com/BasicOperationApp/_api/Web/Lists(guid'9b64f833-6b28-4bf4-b02d-31e6f1d649e6')/TitleResource"}},
"UserCustomActions":{"__deferred":{"uri":"https://gjq-11683d04060f3f.sharepoint.com/BasicOperationApp/_api/Web/Lists(guid'9b64f833-6b28-4bf4-b02d-31e6f1d649e6')/UserCustomActions"}},
"Views":{"__deferred":{"uri":"https://gjq-11683d04060f3f.sharepoint.com/BasicOperationApp/_api/Web/Lists(guid'9b64f833-6b28-4bf4-b02d-31e6f1d649e6')/Views"}},
"WorkflowAssociations":{"__deferred":{"uri":"https://gjq-11683d04060f3f.sharepoint.com/BasicOperationApp/_api/Web/Lists(guid'9b64f833-6b28-4bf4-b02d-31e6f1d649e6')/WorkflowAssociations"}},
"AllowContentTypes":true,"BaseTemplate":100,"BaseType":0,"ContentTypesEnabled":false,"CrawlNonDefaultViews":false,"Created":"2014-08-12T05:22:25Z",
"DefaultContentApprovalWorkflowId":"00000000-0000-0000-0000-000000000000",
"Description":"",
"Direction":"none",
"DocumentTemplateUrl":null,
"DraftVersionVisibility":0,
"EnableAttachments":true,
"EnableFolderCreation":false,
"EnableMinorVersions":false,
"EnableModeration":false,
"EnableVersioning":false,
"EntityTypeName":"AccordionList",
"ForceCheckout":false,
"HasExternalDataSource":false,
"Hidden":false,
"Id":"9b64f833-6b28-4bf4-b02d-31e6f1d649e6",
"ImageUrl":"/_layouts/15/images/itgen.png?rev=37",
"IrmEnabled":false,
"IrmExpire":false,
"IrmReject":false,
"IsApplicationList":false,
"IsCatalog":false,
"IsPrivate":false,
"ItemCount":3,
"LastItemDeletedDate":"2014-08-12T05:22:25Z",
"LastItemModifiedDate":"2014-08-13T06:16:41Z",
"ListItemEntityTypeFullName":"SP.Data.AccordionListItem",
"MultipleDataList":false,
"NoCrawl":false,
"ParentWebUrl":"/",
"ParserDisabled":false,
"ServerTemplateCanCreateFolders":true,
"TemplateFeatureId":"00bfea71-de22-43b2-a848-c05709900100",
"Title":"Accordion"
}

5. REST Search API时，默认的rowlimit是10，即默认返回10条记录；

6. 使用REST API的POST方法创建新内容时，返回的信息存储在data.d中，比如data.d.Id；

7. REST API 不能修改文件夹的Name，详情请参考此处或者此处；

8. REST API在更新file内容时，只能使用PUT，更新文件的metadata时，需要将文件看作一个item;

If you want to update a file's metadata, you'll have to construct an endpoint that reaches the file as a list item. You can do this because each folder is also a list, and each file is also a list item. Construct an endpoint that looks like this: https://<site url>/_api/web/lists/getbytitle('Documents')/items(<item id>). Working with lists and list items with REST explains how to update a list item's metadata.

9. 使用REST API获取item信息时，Look Up字段会发生一些变化，比如：有一个内部名称为Zone的列，查询出来的数据中找不到Zone列，而会有个ZoneId字段，值为被查询item的ID值；如果想得到Zone的显示名称，可使用$expand来获取：

1. 在$select=中可以写上Zone/Id,Zone/ColumnX;
2. 在$expand=中必须写上Zone; 

注：Zone为当前列表的Look up字段；ColumnX为被查询列表的任何字段的内部名称；

10. 如果不使用cross-domain类库，在进行POST操作时，都要在headers中添加X-RequestDigest参数，默认赋值是$("#__REQUESTDIGEST").val()；

11. 过滤操作需要使用$filter，例如，只需要Title字段以“B”开头的数据：$filter=startswith(Title, 'B')；只需要Title字段包含“B”的数据：$filter=substringof('B',Title)；

12. REST API - GET

　　　　　　　$.ajax({
                  url: "https://XXX.sharepoint.com/_api/web/lists/GetByTitle('XXX')/items",
                  type: "GET",
                  headers: {"Accept": "application/json;odata=verbose"},
                  success: function(data){
                      if(data.d.results){
                          var $selectObj = $("<select id='deptSelect'></select>");
                          $.each(data.d.results, function(index, item){
                              $selectObj.append($("<option></option>").attr("value", item.ID + item.Title).text(item.Title));
                          });
                          $("#getDiv").append($selectObj);
                          $("#getDiv").append("<br/>"+JSON.stringify(data.d.results));
                      }
                  },
                  error: function(xhr){
                      alert(xhr.status+': '+xhr.statusText);
                  }
              });

注意：由于服务器端分页的限制，默认情况下，每次只能获取100条数据，但可以使用$top参数来指定一次要获取多少条数据，但最大不能超过5000；还可以使用__next来获取下一页的100条数据，请参考此处；

13. REST API - POST (create)

　　　　　　　　var newItem={
                  "__metadata":{"type": "SP.Data.Region_x0020_ApproversListItem"},
                  "Title": "Test Dept",
                  "Region": "GCN"
              };

              $.ajax({
                  url: "https://XXX.sharepoint.com/_api/web/lists/GetByTitle('XXX')/items",
                  type: "POST",
                  contentType: "application/json;odata=verbose",
                  data: JSON.stringify(newItem),
                  headers: {
                      "Accept": "application/json;odata=verbose",
                      "X-RequestDigest": $("#__REQUESTDIGEST").val()
                  },
                  success: function(data){
                      alert(JSON.stringify(data.d.Id));
                  },
                  error: function(xhr){
                      alert(xhr.status+': '+xhr.statusText);
                  }
              });

14. REST API - POST (update)

　　　　　　　　var updatedItem={
                  "__metadata":{"type":"SP.Data.Region_x0020_ApproversListItem"},
                  "Title": "Test Dept Again"
              };

            $.ajax({
                  url: "https://XXX.sharepoint.com/_api/web/lists/GetByTitle('XXX')/items(40)",
                  type: "POST",
                  contentType: "application/json;odata=verbose",
                  data: JSON.stringify(updatedItem),
                  headers:{
                      "ACCEPT": "application/json;odata=verbose",
                      "X-RequestDigest": $("#__REQUESTDIGEST").val(),
                      "X-HTTP-METHOD": "MERGE",
                      "IF-MATCH": "*"
                  },
                  success: function(){ //此处没有data参数
                      getListItem();
                  },
                  error: function(xhr){
                      alert(xhr.status+': '+xhr.statusText);
                  }
              });

15. REST API - DELETE

　　　　　　　　$.ajax({
                  url: "https://XXX.sharepoint.com/_api/web/lists/GetByTitle('XXX')/items(43)",
                  type: "POST",
                  headers:{
                      "Accept": "application/json;odata=verbose",
                      "X-Http-Method": "DELETE",
                      "X-RequestDigest": $("#__REQUESTDIGEST").val(),
                      "If-Match": "*"
                  },
                  success: function(data){
                      alert(JSON.stringify(data));
                  },
                  error: function(xhr){
                      alert(xhr.status+': '+xhr.statusText);
                  }
              });

16. 在进行POST操作时，需要先得到metadata中的type属性值，方法是：http://XXXX/sites/XXX/_api/web/lists/getbytitle('listName')?$select=ListItemEntityTypeFullName

17. SharePoint 2016及 Office 365支持 REST API批量操作（Batch），可参考此处；

18. REST API 使用的uri中，SharePoint名称（比如，列表名，列名）是大小写敏感的，oData的名称是大小写不敏感；在使用$filter等条件语句进行筛选对比时，非数字类型值需要添加单引号，比如 userName eq 'ABC'；

19. 使用REST API获取当前用户的登录名：

<script type="text/javascript">
  var userid= _spPageContextInfo.userId;
  var requestUri = _spPageContextInfo.webAbsoluteUrl + "/_api/web/getuserbyid(" + userid + ")";
  var requestHeaders = { "accept" : "application/json;odata=verbose" };
  $.ajax({
    url : requestUri,
    contentType : "application/json;odata=verbose",
    headers : requestHeaders,
    success : onSuccess,
    error : onError
  });

  function onSuccess(data, request){
    var loginName = data.d.LoginName;
    alert(loginName);
  }

  function onError(error) {
    alert("error");
  }
</script>

20. 创建一个 Custom REST Service，可参考此文章；重要一点是：无需修改Web Config文件，只需要在.svc文件声明中加入以下代码即可：

<%@ ServiceHost Language="C#" Debug="true" Service="SPRESTService.CustomRESTService, $SharePoint.Project.AssemblyFullName$"
    CodeBehind="CustomRESTService.svc.cs"
    Factory="Microsoft.SharePoint.Client.Services.MultipleBaseAddressWebServiceHostFactory,
    Microsoft.SharePoint.Client.ServerRuntime, Version=15.0.0.0, Culture=neutral,
    PublicKeyToken=71e9bce111e9429c"%>

如需在声明中使用 token 符 "$SharePoint.Project.AssemblyFullName$"，需要在project文件(.csproj文件) 中加入以下代码：

<PropertyGroup>
    ...
    <SandboxedSolution>False</SandboxedSolution>
    <TokenReplacementFileExtensions>svc</TokenReplacementFileExtensions>
</PropertyGroup>

21. 在Custom REST Service时， 每个 OperationContract的 Name属性用于标识这个操作，是唯一的，在返回值中可以体现出来，返回值为 Name + 'Result'，例如，在ajax回调函数中使用时即为 response.GetAllPresidentsResult ；UriTemplate属性是访问此操作的路径，也是唯一的；

22. 若要获取一个web根目录下的所有folder，可以使用一下REST API:

http://site url/_api/web/folders

得到的结果即是在SPD中看到的样子：

REST返回的结果可能还会包含一下以"_vti_"开头的文档库或列表地址，这些是FrontPage的遗产物，无需在意，详情可参考此文章；

23. SharePoint REST API中的 /folders 和 /files 接口都只能得到当前文件夹下的 子文件夹 或者 文件，而不能递归读取所有 子文件夹 或 文件；

http://host url/sites/jacky/_api/Web/GetFolderByServerRelativeUrl('/sites/jacky/Documents')/Files
http://host url/sites/jacky/_api/Web/GetFolderByServerRelativeUrl('/sites/jacky/Documents')/Folders

而 /items 接口却可以得到一个 list 或者 library 所有item，包括文件和文件夹；

http://host url/sites/jacky/_api/Web/Lists(guid'9957f1e6-a35a-4888-a770-d5325c5cfe74')/Items

24. $expand 相当于扩展查询，将子查询对象的结果集成到当前这次调用中来，比如：

使用 http://host url/sites/jacky/_api/Web/GetFolderByServerRelativeUrl('/sites/jacky/Documents') 接口我们可以得到Documents 这个文件夹的一些信息，返回结果如下：

如果加上$expand 对象，将 REST URI 改为：http://host url/sites/jacky/_api/Web/GetFolderByServerRelativeUrl('/sites/jacky/Documents')?$expand=Folders,Files 即 加上了 查询Folders 和 Files的子语句，返回的结果为：

相当于，在查询当前文件夹信息的同时，也进行了下面两个查询，并将结果一次性返回：

http://host url/sites/jacky/_api/Web/GetFolderByServerRelativeUrl('/sites/jacky/Documents')/Files
http://host url/sites/jacky/_api/Web/GetFolderByServerRelativeUrl('/sites/jacky/Documents')/Folders

25. 在使用$select时，如果需要选择的属性位于一个集合(例如 results)中，那么在路径中可以忽略掉 results (此为虚拟节点)，直接写需要的属性，比如下图，如果需要选择 Title属性，不需要写成：$select=ListItemAllFields/RoleAssignments/results/Member/Users/results/Title，直接写成 $select=ListItemAllFields/RoleAssignments/Member/Users/Title 即可；

26.