Contacts.Request Not getting all contacts

Question

Hi

When i do a request for contacts I only get about 10 contacts returned? Suggestions ?

Regards

Meir

Answer 1

Hello @Meir Rotfleisch , The PageIterator class simplifies consuming of paged collections. PageIterator handles enumerating the current page and requesting subsequent pages automatically. Here is the documentation for your reference :https://learn.microsoft.com/en-us/graph/sdks/paging?tabs=csharp

var messages = await graphClient.Me.Messages  
    .Request()  
    .Header("Prefer", "outlook.body-content-type=\"text\"")  
    .Select(e => new {  
        e.Sender,  
        e.Subject,  
        e.Body  
    })  
    .Top(10)  
    .GetAsync();  
  
var pageIterator = PageIterator<Message>  
    .CreatePageIterator(  
        graphClient,  
        messages,  
        // Callback executed for each item in  
        // the collection  
        (m) =>  
        {  
            Console.WriteLine(m.Subject);  
            return true;  
        },  
        // Used to configure subsequent page  
        // requests  
        (req) =>  
        {  
            // Re-add the header to subsequent requests  
            req.Header("Prefer", "outlook.body-content-type=\"text\"");  
            return req;  
        }  
    );  
  
await pageIterator.IterateAsync();  

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Answer 2

Hi @Meir Rotfleisch

Using Microsoft graph API, you don't get all the results on a single page (in API response). You get an "@odata.nextLink" in response, using which you can retrieve next set of results.

In order to check/count the number of contacts, I have used me/contacts?$count=true (refer to the attached screenshot) and as the total count is 13 (in API response), so I am getting a "@odata.nextLink" in response. Now using this link, I can get the next set of results.

Please refer below screenshot for better understanding.

Hope this helps.
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Answer 3

HI

Seems the default for the .GetAsync()_ is 10 Records

What needs to be added is to send to the GraphHelper function an integer as such

public static async Task<IEnumerable<Microsoft.Graph.Contact>> GetContactsAsync(int P)
{
var graphClient = GetAuthenticatedClient();

        var events = await graphClient.Me.Contacts.Request()
        .Skip(P)
            .GetAsync();

        return events.CurrentPage;
    }

And in the Controller you need to keep track and send each time a value for the P :) to get the paging

Regards

Meir