Office Graph API - get items from list - sharepoint

Question

Is there a way within the Office Graph API to access items in a specific list - and not just items that I can see, but items I may not have access to?

Answer 1

Microsoft Graph access to SharePoint objects is currently in the beta version of Graph. See https://developer.microsoft.com/en-us/graph/docs/api-reference/beta/resources/sharepoint.
To access specific items, the endpoint pattern would be:
GET https: //graph.microsoft.com/beta/sites/{site-id}/lists/{list-id}/items/{item-id}
For example: https:// graph.microsoft.com/beta/sites/mytenant.sharepoint.com:/sites/mysite:/Lists/Announcements/Items/1
As for being able to access items you do not have access to: No. That would be a horrible security problem if you could use any API to access such items.

Answer 2

There are two kinds of permission for app registered on the Microsoft Azure platform.
One is delegated permission. In this scenario, the user delegates access to a client application. We can call the REST API to get the data owned by who sign in.
The another is Application-level. In this scenario which permits a web service (a confidential client) to use its own credentials to authenticate when calling another web service, instead of impersonating a user. For example, a service or daemon app can retrieve all the users in a tenant if it has the Read all users' full profiles permission selected in the Azure Management Portal. And we can get the specific user's drive via the API like below:
GET /users/<id | userPrincipalName>/drive
More detail about REST API for handling the files on OneDrive for business, please refer to link below:
https://graph.microsoft.io/en-us/docs/api-reference/v1.0/resources/drive
And here is the link for the authentication protocols for the Azure AD support:
https://msdn.microsoft.com/en-us/library/azure/dn151124.aspx

Answer 3

No, you can't retrieve SharePoint list items using Graph API, but you can use SharePoint REST API for that. It's similar to Graph API and supports OAuth.
Check the documentation for SharePoint API here: https://msdn.microsoft.com/en-us/library/office/dn531433.aspx

Answer 4

To get items from a list within SharePoint, you can use SharePoint Rest API. A sample code to get items using rest api is as below:
// For SharePoint 2010
var strRestUrl = _spPageContextInfo.webServerRelativeUrl + "/_vti_bin/listdata.svc/{{listname}}
// For Office 365 or SharePoint 203
var strRestUrl = _spPageContextInfo.webAbsoluteUrl + "/_api/Web/Lists/GetByTitle({{listname}})/Items
$.ajax({
url: strRestUrl,
method: 'GET',
headers: { "Accept": "application/json; odata=verbose" },
success: function(response){
// success callback function
},
complete: function(){
// complete callback function
},
error: function (data) {
// error callback function
console.log(data.responseJSON.error);
}
});
If you are using SharePoint 2010 then Rest URL is different and if you are using SharePoint 2013/Office 365 rest URL is different. Hope this code will help you.
More details about REST API are as available at below link:
https://msdn.microsoft.com/en-us/library/office/dn531433.aspx