GraphQL Variables - Query language

Documentation
1 
query test($a: int = 2, $b: int!, $aName: string, $bName: string) {
  me(func: eq([email protected], [$aName, $bName])) {
    director.film (first: $a, offset: $b) {
      genre(first: $a) {
        [email protected]
      }
    }
  }
}

query test($a: int = 2, $b: int!, $aName: string, $bName: string) { me(func: eq(name@en, [$aName, $bName])) { director.film (first: $a, offset: $b) { genre(first: $a) { name@en } } } } 

curl -H "Content-Type: application/json" localhost:8080/query -XPOST -d '{
    "query": "blahblah",
    "variables": {"$b": "10", "$aName": "Steven Spielberg", "$bName": "Quentin Tarantino"}
}' | python -m json.tool | less
        
package main
import (
	"context"
	"flag"
	"fmt"
	"log"
    
	"github.com/dgraph-io/dgo/v2"
	"github.com/dgraph-io/dgo/v2/protos/api"
    
	"google.golang.org/grpc"
)
var (
	dgraph = flag.String("d", "127.0.0.1:9080", "Dgraph Alpha address")
)
func main() {
	flag.Parse()
	conn, err := grpc.Dial(*dgraph, grpc.WithInsecure())
	if err != nil {
		log.Fatal(err)
	}
	defer conn.Close()
	dg := dgo.NewDgraphClient(api.NewDgraphClient(conn))
    
	resp, err := dg.NewTxn().QueryWithVars(context.Background(), `blahblah`, map[string]string{"$b": "10", "$aName": "Steven Spielberg", "$bName": "Quentin Tarantino"})
    
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("Response: %s\n", resp.Json)
}
import com.google.common.collect.ImmutableMap;
import io.dgraph.DgraphClient;
import io.dgraph.DgraphGrpc;
import io.dgraph.DgraphGrpc.DgraphStub;
import io.dgraph.DgraphProto.Response;
import io.grpc.ManagedChannel;
import io.grpc.ManagedChannelBuilder;
import java.util.Map;
public class App {
    public static void main(final String[] args) {
        ManagedChannel channel =
            ManagedChannelBuilder.forAddress("localhost", 9080).usePlaintext(true).build();
        DgraphStub stub = DgraphGrpc.newStub(channel);
        DgraphClient dgraphClient = new DgraphClient(stub);
        String query = "blahblah";
    
        Map<String, String> vars = ImmutableMap.of("$b", "10", "$aName", "Steven Spielberg", "$bName", "Quentin Tarantino");
        Response res = dgraphClient.newTransaction().queryWithVars(query, vars);
    
        System.out.printf("Response: %s", res.getJson().toStringUtf8());
    }
}

import pydgraph
import json
def main():
    client_stub = pydgraph.DgraphClientStub("localhost:9080")
    client = pydgraph.DgraphClient(client_stub)
    query = """blahblah"""
    variables = {"$b": "10", "$aName": "Steven Spielberg", "$bName": "Quentin Tarantino"}
    res = client.txn(read_only=True).query(query, variables=variables)
    print('Response: {}'.format(json.loads(res.json)))
    client_stub.close()
if __name__ == '__main__':
    try:
        main()
    except Exception as e:
        print('Error: {}'.format(e))

const dgraph = require("dgraph-js");
const grpc = require("grpc");
async function main() {
  const clientStub = new dgraph.DgraphClientStub("localhost:9080", grpc.credentials.createInsecure());
  const dgraphClient = new dgraph.DgraphClient(clientStub);
  const query = `blahblah`;
  const vars = {"$b": "10", "$aName": "Steven Spielberg", "$bName": "Quentin Tarantino"};
  const response = await dgraphClient.newTxn().queryWithVars(query, vars);
  console.log("Response: ", JSON.stringify(response.getJson()));
  clientStub.close();
}
main().then().catch((e) => {
  console.log("ERROR: ", e);
});

const dgraph = require("dgraph-js-http");
async function main() {
  const clientStub = new dgraph.DgraphClientStub("http://localhost:8080");
  const dgraphClient = new dgraph.DgraphClient(clientStub);
  const query = `blahblah`;
  const vars = {"$b": "10", "$aName": "Steven Spielberg", "$bName": "Quentin Tarantino"};
  const response = await dgraphClient.newTxn().queryWithVars(query, vars);
  console.log("Response: ", JSON.stringify(response.data));
}
main().then().catch((e) => {
  console.log("ERROR: ", e);
});
This is a companion discussion topic for the original entry at https://dgraph.io/docs/query-language/graphql-variables/