I have a Az function using implementation similar to this https://github.com/FBoucher/AzUnzipEverything/blob/master/Unzipthis.cs I have BLOB trigger when a zip file is dropped. Az function Unzips it and copies the files to a new AZ blob location. I get zip files with thousands of files inside it, so the copy process takes a very long time using foreach loop. i tried using Parallel for each Async https://github.com/Dasync/AsyncEnumerable that only works when running locally, when deployed it does not seems to work at all, no errors nothing, but nothing happens.
I want to try this Durable functions instead like in example below where each file copy is done by a another activity function. This will help speed up the process by having separate task for copy job, but problem is how do i pass the file to be copied to another blob location in Activity function?