Example of Reading User's Email Using Microsoft Graph

Question

I'm creating a C# .Net Core 2.0 console application to read a specific user's email. I successfully got this sample console application working. So authentication is working. I added permissions to Read all User's email. I looked at the API docs and I can't see examples of reading a user's email. Plenty of send examples. Any help appreciated.

Do you want to get every one's mail or just the specific user's mail? — Seiya Su
– Seiya Su, Commented Oct 7, 2018 at 9:05

user2970483 · Accepted Answer · 2018-10-07 22:25:38Z

4

Thanks for posting. I got this to work if I comment out the Filter:

            GraphServiceClient client = GetAuthenticatedClient();

            string subject = "RE: ACTION NEEDED:";
            string dt = "2018-10-5T00:00:00";
            IUserMessagesCollectionPage msgs = client.Users["[email protected]"].Messages.Request()
                //.Filter($"receivedDateTime ge '{dt}'")  // Invalid filter
                .Filter($"startswith(subject, '{subject}') and receivedDateTime gt {dt}")
                .Select(m => new { m.Subject, m.ReceivedDateTime, m.From, m.Body })
                .Top(100)
                .GetAsync().Result;
            int msgCnt = msgs.Count;

I posted something about getting filter to work. startswith works but the date filter fails.

answered Oct 7, 2018 at 22:25

user2970483

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Seiya Su · Accepted Answer · 2018-10-08 13:58:42Z

0

To get each one's mail.

var users = graphClient.Users.Request().GetAsync().Result;

To get the specific user's mail:

List<QueryOption> options = new List<QueryOption>
{
     new QueryOption("$filter", "startswith(displayName,'the specific user's mail')")
};
var users= await graphClient.Users.Request(options).GetAsync();
//Or
  var users = await graphClient.Users.Request().Filter("startswith(displayName,'help')").GetAsync();

Get Mail:

  foreach (var item in users)
    {
      string currentMail=item.Mail;
    }

Update 2018-10-7 For your updated post:

You can use the following API to filter the mails:

https://graph.microsoft.com/v1.0/me/mailFolders/inbox/messages?$filter=ReceivedDateTime ge 2018-10-04 and startswith(subject,'{subject}')

edited Oct 8, 2018 at 13:58

answered Oct 7, 2018 at 9:20

Seiya Su

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2 Comments

Seiya Su Over a year ago

It is normal behavior. Many thing is still not supported in Graph API.

Muflix Over a year ago

How do you call Web API from graphClient?

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