Hey there, another person asking about specifics on the workaround approach to showing live Roll20 game data on a stream layout. Looking through old posts here, there were some pretty good solutions proposed, including here where they recommended writing the data to a public handout on each attribute change. I've taken the mod script written there and modified it to output a JSON string that my layout can then read, but I can't find anywhere in any old topic about how to scrape the handout from the external journal very well.
I've explored the raw firebase approach. That was going alright until it needed proper authentication. Since signInWithEmailAndPassword is disabled on their instance, and I didn't know where to get a good custom token to use for that sdk method, that where where I hit a wall. I also tried briefly to go through a series of POST and GET requests, first to login to Roll20, which worked, but it returned no useable data to access the external journal page, which seems to require someone to be logged in period, even if it's "public", to access, so I hit a well there too.
If anyone has had experience or success in programmatically access the handouts in an external journal (preferably through Javascript), I'd really appreciate the help.