[danias]

Great question! While GraphQL is pretty cool we really like protobufs because its a lot easier to generate nice client code. Using grpc-web allows us to use the proto file to generate types and code for the frontend making the experience much much better than GraphQL, in addition we have implemented a caching mechanism that avoids sending back unnecessary query results back to the client. Finally grpc-web uses HTTP2 and is much more performant than GraphQL. Having said that it is not too hard to add GraphQL support through a Nest.js plugin and we will probably add it in the future if there is enough interest.