How to split file when uploading to sharepoint using resumable sessions?

Question

In the documentation https://learn.microsoft.com/en-us/graph/api/driveitem-createuploadsession?view=graph-rest-1.0#upload-bytes-to-the-upload-session I read:

Note: If your app splits a file into multiple byte ranges, the size of each byte range MUST be a multiple of 320 KiB (327,680 bytes). Using a fragment size that does not divide evenly by 320 KiB will result in errors committing some files.

Now what about the files which length is not a multiple of 320 KiB? Should the last part be just extended up to size of 320 KiB?

Answer 1

Hi @anna,

Do you want to split file when uploading to sharepoint using resumable sessions?

Here is a test for your reference:

Use uploadUrl to creaete new put request

Check this file size:

In the body, choose the file. ThenAdd two headers Content-Length and Content-Range for the request.

Content-Length : {fileSize in bytes}
Content-Range: bytes 0-{fileSize-1}/{fileSize}

Here is test result:

The problem in this thread is similar to yours, you could refer to this thread(The path in this should also solve your doubts yesterday):

https://learn.microsoft.com/en-us/answers/questions/435652/upload-a-large-excel-file-using-createuploadsessio

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Best Regards

Cheng Feng