graphql

package main

import (
	"log"
	"net/http"

	"github.com/graphql-go/graphql"
	"github.com/graphql-go/handler"

	ddgraphql "github.com/DataDog/dd-trace-go/v2/contrib/graphql-go/graphql"
)

func main() {
	schema, err := ddgraphql.NewSchema(graphql.SchemaConfig{
		Query: graphql.NewObject(graphql.ObjectConfig{
			Name: "Query",
			Fields: graphql.Fields{
				"hello": &graphql.Field{
					Name: "hello",
					Type: graphql.NewNonNull(graphql.String),
				},
			},
		}),
	})
	if err != nil {
		panic(err)
	}

	http.Handle("/query", handler.New(&handler.Config{Schema: &schema}))
	log.Fatal(http.ListenAndServe(":8080", nil))

	// then:
	// $ curl -XPOST -d '{"query": "{ hello }"}' localhost:8080/query
}

Output: