The service name in the Go example should be `dfuse.graphql.v1.GraphQL` instead of `dfuse.eosio.v1.GraphQL` See [this](https://github.com/dfuse-io/docs/blob/master/quickstarts/go/pb/graphql.pb.go#L307) line and [that](https://github.com/dfuse-io/docs/blob/master/quickstarts/go/pb/graphql.pb.go#L369) line.
The service name in the Go example should be
dfuse.graphql.v1.GraphQLinstead ofdfuse.eosio.v1.GraphQLSee this line and that line.