How to set expiry/TTL for file uploaded to Azure Blob Storage using Azure Client?

Question

Hi Azure team,

I have looking to figure out ways one can use to set some expiry/Time to live for a file uploaded in the Azure Blob. So far, I have come across:

https://learn.microsoft.com/en-us/answers/questions/450426/how-to-set-expiry-ttl-for-file-uploaded-to-azure-b

But i am unable to find the answer in the link provided as marked

Answer 1

Hello Aparna, Welcome to MS Q&A

To set the expiration or Time to Live (TTL) for a file uploaded to Azure Blob Storage, you can use the Cache-Control header. The TTL is determined by this header in the HTTP response from the origin server. Here are several methods to set the Cache-Control header

1. Azure Storage Explorer:
   • Select the blob, right-click and choose Properties.
   • Find the CacheControl property, enter your desired value, and save.
2. Azure CLI:
   • When uploading a blob, you can set the cache-control header using the -p switch. For example, to set the TTL to one hour (3600 seconds):

             azure storage blob upload -c <connectionstring> -p cacheControl="max-age=3600" .\<blob name> <container name> <blob name>
             
          
          
     

3. Azure Storage Services REST API:
   • You can explicitly set the x-ms-blob-cache-control property using operations like Put Blob, Put Block List, or Set Blob Properties.

If you do not set a TTL, Azure CDN applies a default TTL of seven days, unless caching rules are configured in the Azure portal.

References:

• Manage expiration of Azure Blob storage in Azure Content Delivery Network
• Manage expiration of web content in Azure Content Delivery Network
• Setting Cache-Control headers by using other methods
• Please check and let us know if anything needed, kindly accept if helps