UploadDownloadAzureBlobSAS.ps1

# This is how you can upload and download a file to/from Azure Blob Storage using PowerShell and a SAS URL.
# For download the SAS URL must have read permissions and for upload it must have write permissions.


# Specify the filename to upload
$Filename = "picture.png"

# Replace with your actual SAS URL
$SasUrl = "https://aiswedenholmes7080246781.blob.core.windows.net/files/$Filename?sp=rw&st=2025-11-13T12:03:14Z&se=2025-11-13T20:18:14Z&spr=https&sv=2024-11-04&sr=c&sig=Rb0Aqy5Hg6G0PZiJV1M8cYY5MvELK8TXN8gxCu4xqjU%3D"

# Read the file content as a byte array
$FileContent = [System.IO.File]::ReadAllBytes("./$Filename")

# Upload the file to Azure Blob Storage
Invoke-RestMethod -Uri $SasUrl `
                  -Method Put `
                  -Body $FileContent `
                  -Headers @{ 
                    "x-ms-blob-type" = "BlockBlob"
                    "Content-Type"   = "application/octet-stream"
                }


# Download the file back from Azure Blob Storage                
Invoke-RestMethod -Uri $SasUrl `
                  -Method Get `
                  -OutFile "new_$Filename.png"