Hey @QIRO , this is possible, but note that even calling from the backend will have a similar UX as the user is waiting to download the file anyway - so on the Front-end would be ok if Privacy isn’t an issue.

A workaround for allowing the user to other things while the file is prepped would be an email notification or saving this file to a data type for the user to download later.

You can create fairly complex csv’s from multiple data sources using JSON and the :format as text operator on the front end. This is reasonably performant into the low 1000s of items.

Have a quick look through the forums but let me know if you’d like a further breakdown.

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