Can Appian convert Base64 to Document?

Hi Folks,

There are various discussions going back years on this topic... but no definitive answers or guidance. I have a requirement to take a base64 encoded string (received via API) and create a document. I have no need of a  database. Just need to take the string, create a document, write it to the document store. Can anyone point me in the right direction for this?

Much appreciated.

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