Control Chunking

[cancan101]

How is chunking controlled, i.e. the threshold for whether the file is send in one chunk or broken up and sent in multiple chunks?
The old adapter had singleBlobUploadThresholdInBytes and that controlled the logic (see here). This is relevant as any files sent in more than one chunk will not have their md5 hash set (see SO).

[brecht-vermeersch]

UploadBlobOptions can be used and passed to the BlobClient::upload method.

https://github.com/Azure-OSS/azure-storage-php/blob/main/src/Blob/Models/UploadBlobOptions.php

[cancan101]

Not sure if this is just an issue with the comments on that file, but for initialTransferSize, I see multiple references to 'downloaded' rather than 'uploaded.

And then I am confused as to why maximumTransferSize is smaller than initialTransferSize? I would think that initialTransferSize would be the block size ('Blobs smaller than this limit will be downloaded in a single request'), comparable to the old singleBlobUploadThresholdInBytes, but perhaps that isn't right?

[brecht-vermeersch]

This is the same as the dotnet sdk. More info on that here https://learn.microsoft.com/en-us/azure/storage/blobs/storage-blobs-tune-upload-download

Download should indeed be upload

[brecht-vermeersch]

As a bonus, I am looking into calculating the md5 before uploading and then setting it.

[brecht-vermeersch]

@cancan101 #36