WSC998

`package main import ( "context" "encoding/json" "fmt" "github.com/dgraph-io/dgo" "github.com/dgraph-io/dgo/protos/api" "google.golang.org/grpc" "strconv" "sync" ) func nodeExists(dg *dgo.Dgraph, id string) (bool, error) { query := fmt.Sprintf(`{ data(func: eq(id, "%s")) { uid }...