does anyone already tried ApolloApi? does subscription works? planning to use it.

Here’s an example @JP (junaway) created. I haven’t tried it. If you get a chance to try it out, let me know how it goes. https://github.com/serverless-stack/serverless-stack/pull/798

Subscriptions work if you use AWS lambda graphql, I haven't tried with that code, but I've used it outside of SST. Well worth reading the docs on it, and they have an demo in their GitHub repo. I don't think it works with live lambda debugging in SST from memory.