Since importJSON is an add-on for Google Sheets, it seems to refresh each time the Sheet is reopened in a new browser tab. It doesn't update in the 'background', or at least, I haven't found a way to make it do that.
O/k, that makes sense & implies that few endpoint requests would actually be made.
Since importJSON is an add-on for Google Sheets, it seems to refresh each time the Sheet is reopened in a new browser tab. It doesn't update in the 'background', or at least, I haven't found a way to make it do that.