Base64 variable format?

[pko-trackunit]

Would it be possible to add base64 formatting of variables?

I have a variable in my Grafana dashboard that can be anything. I want to use that variable to construct URL like:

https://example.org?param1={"key1": "some language here with \"${grafanaValue}\" and more text"}

To do it correctly I first need to escape all double quotes for $language to work, then there's JSON string that needs to escaped again. Finally I should also do query string encoding, but fortunately web browsers deal with that, so it's not that important.

My plan / hope is to be able to do:

https://example.org?param1={"key1": "some language here with base64_decode(\"${grafanaValue:base64encode}\") and more text"}