What ways are there to get subscription status from an extension?

Cache what you can where you can, to avoid having to make calls

You can’t prevent errors, you have to handle errors.

Does a queue even work, if someone loads your extension they want a instant data response from your EBS, they don’t want to have to wait for your extension to run the queue. So does a queue even work?

“The best NPM package” to do what?

Generally I limit my packages to Express, got and database interaction, I avoid packages that wrap API’s for me, I usually don’t need or want that level of interruption to my code, but sometimes you don’t want to or shouldn’t reinvent the wheel.

But for Twitch, I don’t use any package, I just use Got for my HTTPS requests and a small module that handles app access token management and how I include that module/block of code varies by project.