I want to transfert encrypted files from an ftp server
to `azure blob storage container
Here is the workfow in question:
CSV
Don't overengineer it.
Use a Logic App to poll the FTP server and detect new files, place them in blob storage.
Create a blob-triggered Azure Function (Consumption Plan, v2 runtime) and do your data transformation in code (in v2 you have a choice between TypeScript, JavaScript, C# and Python). Write the results to blob storage with a blob output binding.
OPTIONAL Have a second Logic App trigger on the resulting blobs and e-mail/text you notifications.