Access Blob storage using SAS Key via PowerShell

Hi Alex Palmer,
Welcome to Microsoft Q&A, thanks for posting your query

A shared access signature (SAS) provides delegated access to Azure resources. A SAS gives you granular control over how a client can access your data.

You can specify which resources are available to the client. You can also limit the types of operations that the client can perform and specify the amount of time for which the actions can be taken.

A SAS is commonly used to provide temporary and secure access to a client who wouldn't normally have permissions. An example of this scenario would be a service that allows users read and write their own data to your storage account.

Yes, you can access Blob storage using a SAS key in PowerShell without signing into Azure or use a Storage Account Key.

• You don't need to generate a new SAS token with New-AzStorageContainerSASToken if you already have one. Instead, directly create a storage context using the SAS token.
• The "New-AzStorageContext" cmdlet creates a storage context using the specified storage account name and SAS token.
• Code:
  Assign your existing SAS token.
  $SasToken = "your_existing_sas_token"
  Create a new storage context using the SAS token.
  $Context = New-AzStorageContext -StorageAccountName "storage1" -SasToken $SasToken
• Once you have created the storage context, you can use it to perform operations on the container, such as uploading or downloading blobs.
•  you can go through this below links.
• Reference: https://video2.skills-academy.com/en-us/powershell/module/az.storage/new-azstoragecontext?view=azps-12.3.0&viewFallbackFrom=azps-10.17.0

Please let us know if you have any further queries. I’m happy to assist you further. 

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