/// <summary>
/// Upload a large file using callbacks
/// </summary>
/// <param name="graphClient">Client for upload</param>
/// <param name="itemId">itemId for upload</param>
/// <returns></returns>
public static async Task UploadLargeFileWithCallBacks(GraphServiceClient graphClient, string itemId)
{
try
{
using Stream stream = GetFileStream();
// POST /v1.0/drive/items/01KGPRHTV6Y2GOVW7725BZO354PWSELRRZ:/SWEBOKv3.pdf:/microsoft.graph.createUploadSession
var uploadSession = await graphClient.Drive.Items[itemId].ItemWithPath("SWEBOK.pdf").CreateUploadSession().Request().PostAsync();
Console.WriteLine("Upload Session Created");
var maxChunkSize = 320 * 1024; // 320 KB - Change this to your chunk size. 5MB is the default.
var largeFileUpload = new LargeFileUpload(uploadSession, graphClient, stream, maxChunkSize);
// Setup the chunk request necessities
DriveItem uploadedFile = null;
try
{
// Simulate an exception
uploadedFile = await largeFileUpload.UploadAsync(new MyProgressKiller());
}
catch (TaskCanceledException)
{
//try to refresh the upload info and resume the upload from where we left off.
Console.WriteLine("Resuming Download");
uploadedFile = await largeFileUpload.ResumeAsync(new MyProgress());
}
//Sucessful Upload
}
catch (ServiceException e)
{
Console.WriteLine(e.Message);
}
//Sucessful Upload
}
public static async Task UploadLargeFileInSlices(GraphServiceClient graphClient, string itemId)
{
try
{
using Stream stream = GetFileStream();
// Create upload session
// POST /v1.0/drive/items/01KGPRHTV6Y2GOVW7725BZO354PWSELRRZ:/SWEBOKv3.pdf:/microsoft.graph.createUploadSession
var uploadSession = await graphClient.Drive.Items[itemId].ItemWithPath("SWEBOK.pdf").CreateUploadSession().Request().PostAsync();
// Create task
var maxChunkSize = 320 * 1024; // 320 KB - Change this to your chunk size. 5MB is the default.
var largeFileUpload = new LargeFileUpload(uploadSession, graphClient, stream, maxChunkSize);
// Setup the chunk request necessities
var slicesRequests = largeFileUpload.GetUploadSlicesRequests();
var trackedExceptions = new List <Exception>();
DriveItem itemResult = null;
//upload the chunks
foreach (var request in slicesRequests)
{
// Send chunk request
var result = await largeFileUpload.UploadSliceAsync(request, trackedExceptions);
// Do your updates here: update progress bar, etc.
Console.WriteLine($"File uploading in progress. {request.RangeEnd} of {stream.Length} bytes uploaded");
if (result.UploadSucceeded)
{
itemResult = result.ItemResponse;
Console.WriteLine($"File uploading complete");
}
}
// Check that upload succeeded
if (itemResult == null)
{
//Upload failed
Console.WriteLine("Upload failed");
}
}
catch (ServiceException e)
{
Console.WriteLine(e.Message);
}
}