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Jamie Thomson

This is the blog of Jamie Thomson, a data mangler in London working for Dunnhumby

Create a BLOB in Azure BLOB Storage using the REST API and Powershell

Have you ever wanted to use Powershell to call the Azure BLOB Storage API in order to create a new BLOB? You haven’t? What have you been doing all your life? (!!!)

Well, if your life ever does reach the same giddy heights as mine and you find that you need this ability added to your personal armoury then this blog post should be a massive help. Figuring this out is a battle with deciphering one particularly gnarly MSDN article: Authentication for the Azure Storage Services, or you can just adapt the script linked to below!

Behold, here is the “Hello World” of using Powershell to create a BLOB in Azure BLOB Storage using the REST API. Take the script, add your storage account name and storage key where required, and you’re good to go! I’ve made the script available as a Github Gist: For those that like to see pretty colour coding, here’s a screenshot:


One tip – I encountered an issue where the script file had gotten stored with a Byte Order Mark (BOM) and this was causing an error due to an incorrect Content-Length header. If you have this problem then Notepad++ can remove the BOM for you:


Thank you to Gaurav Mantri for his massive massive help with this.


Published Friday, September 12, 2014 5:14 PM by jamiet

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