Why are you choosing Prisma, and not just staying within the Apollo stack? I'm also interested in GraphQL and Apollo seems the most mature stack (and ecosystem) by far. I've read about Prism but for simplicity I'd choose to stay within the "mainstream" i.e. entirely within the Apollo stack. Large community, easy to google/SO your answers, etc.
As soon as you start integrating additional stacks/technologies then the complexity rises exponentially and there are far fewer answers to be found (on that particular combination of technologies) on SO etc.
By the way what are you going to use for the client (frontend) ?
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