Q:

Which Azure Storage method is best for a temporary file transfer? 

I want to automate the transfer of files from a website not hosted in Azure to my client’s premises. 
I am considering having an API on the website send the files to Azure Blob Storage , and then having another API running at the client site, download them. 
Both would make use of the Azure storage API, which I like because it is easy to implement. 
The files do not need to stay in Azure and can be deleted from storage once they are downloaded. 
However I am wondering if there is a faster way. 
Should I be using Hot Blob Storage or File Storage perhaps? 
I looked at https://docs.microsoft.com/en-us/azure/storage/blobs/storage-blob-storage-tiers but am still unclear as to the fastest method for my use case. 

A:

I suggest you can use File share, which can be mapped to local as a mapped drive and can be easily and faster operation like read / delete. 
If you choose code only, from the comparison of blob and file, they can be up to Up to 60 MiB/s, I cannot see which is faster.  There is a Azure Storage Data Movement Library , which is designed for high-performance uploading, downloading and copying Azure Storage Blob and File, you can use it for your purpose.