Create session to attach large file

Create an upload session that allows you to attach a file with the file size between 3 MB and 150 MB.

C# example

using System;
using System.Threading.Tasks;
using Independentsoft.Graph;
using Independentsoft.Graph.Users;
using Independentsoft.Graph.Mails;

namespace ConsoleApp1
{
    class Program
    {
        static async Task Main()
        {
            try
            {
                GraphClient client = new GraphClient();

                client.ClientId = "63333333-209e-454e-b7bd-55a4d201270f";
                client.Tenant = "independentsoft.onmicrosoft.com";
                client.ClientSecret = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";

                Message message = new Message();
                message.Subject = "Large attachment";

                Message createdMessage = await client.CreateMessage(message, new UserId("info@independentsoft.onmicrosoft.com"));

                AttachmentItem attachmentItem = new AttachmentItem("e:\\Test.pdf");

                UploadSession uploadSession = await client.CreateUploadSession(attachmentItem, new MessageId(createdMessage.Id), new UserId("info@independentsoft.onmicrosoft.com"));

                string url = await client.CreateAttachment(uploadSession, "e:\\Test.pdf");

                Console.WriteLine("Url: " + url);
            }
            catch (GraphException ex)
            {
                Console.WriteLine("Error: " + ex.Code);
                Console.WriteLine("Message: " + ex.Message);
                Console.Read();
            }
        }
    }
}

VB example

Imports Independentsoft.Graph
Imports Independentsoft.Graph.Mails
Imports Independentsoft.Graph.Users

Namespace Sample
    Class Module1

        Shared Sub Main(ByVal args As String())

            Dim task = New Task(AddressOf Run)

            ' Start and wait for task to end.
            task.Start()
            Console.Read()

        End Sub

        Shared Async Sub Run()
            Try

                Dim client As GraphClient = New GraphClient()

                client.ClientId = "63333333-209e-454e-b7bd-55a4d201270f"
                client.Tenant = "independentsoft.onmicrosoft.com"
                client.ClientSecret = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"

                Dim message As Message = New Message()
                message.Subject = "Large attachment"

                Dim createdMessage As Message = Await client.CreateMessage(message, New UserId("info@independentsoft.onmicrosoft.com"))

                Dim attachmentItem As AttachmentItem = New AttachmentItem("e:\Test.pdf")

                Dim uploadSession As UploadSession = Await client.CreateUploadSession(attachmentItem, New MessageId(createdMessage.Id), New UserId("info@independentsoft.onmicrosoft.com"))

                Dim url As String = Await client.CreateAttachment(uploadSession, "e:\Test.pdf")

                Console.WriteLine("Url: " & url)

            Catch ex As GraphException
                Console.WriteLine("Error: " + ex.Code)
                Console.WriteLine("Error: " + ex.Message)
                Console.Read()
            End Try
        End Sub

    End Class
End Namespace

Independentsoft - any library, any programming language

Graph .NET > Tutorial > Create session to attach large file

Need help? Ask our developers: