How to send exported file url to azure blob? And how to change it's expiry?

Hi,

Currently i'm exporting the entity by code to get the file Id

Then i'm getting the dowloaded url by using this

DMFDataPopulation::getAzureBlobReadUrl(fieldId)

Then i'm using this

Stream = File::UseFileFromURL(downloadUrl)

Then I'm using

CloudBlockBlob.uploadFromStream(stream,null,null,null,null)

Now instead of sending the file to blob

I want to send the url(downloadedUrl) inside a file to azure blob and not the file itself

So when i open a file, i'll see the downloaded url where i can click it to download

How to do that?

Also if u notice the url, u can find that it contains start date and and end date (st and se) and the difference is about an hour. Can i increase that?