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How to get oldValue and Current value in function
My function is executed after the document update , how i can get the oldValue and Current Document in the cloud function ?
TL;DR
The user wants to know how to get the old and current values in a function. They mention that the value they need is in `req.variables.APPWRITE_FUNCTION_EVENT_DATA`. Currently, only the updated values are available. They mention a requested feature and provide a link to upvote it. They also mention a workaround suggestion by Steven, which can be found in this link: https://github.com/appwrite/appwrite/discussions/5615#discussioncomment-6071506. The user asks how they can get the old and current document in the cloud function. 
For now you'll get only the current-updated values of the document.
This is a requested feature, you can check about it here (and upvote): https://github.com/appwrite/appwrite/issues/3294
The quick workaround would be what Steven's suggesting here https://github.com/appwrite/appwrite/discussions/5615#discussioncomment-6071506
and that value is in the req.variables.APPWRITE_FUNCTION_EVENT_DATA ?
as a whole document ?
I have to do some extra work for this to work . Okay thanks
Yes.
