I found out that it is automatically used by prisma-binding ... but I cannot see caching working. If I run the same query twice, it is executed twice on prisma

Data loader is a method for batching queries. Check out Apollo Engine. That’s what I use with Yoga.

What do you mean? You put Apollo on top of Yoga? Why? I use Apollo on client.

Apollo offers three services: Apollo Client, Apollo Server, and Apollo Engine. You can use Apollo Engine with Yoga

Thanks guys. In the end I went with my custom data loader. Apollo Engine seems to be just a monitoring tool and does not solve caching .. or at least I did not figure out how.

https://www.apollographql.com/docs/engine/proxy/guides.html#caching 🤷‍♂️