Go serverless: Event-driven applications with Azure Functions

The Discussion

• 

  Love the single line post to cosmos db!
  Is that Azure function ability or language ability?
  i.e when dev is using python? or dev can use the powershell as well.

• 

  Also for environment variable is cool as i dont have to hard code value.
  But now we are reliant on the exact secret uri from Azure keyvault.
  
  Question:
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  What if the keys gets rotated and inserted into the keyvault, that surely will change the uri.
  any suggestion on how to manage when keys are being rotated and inserted as new version in keyvault.