graphql go new api

gql.go

// 
package main

import (
	"log"

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

type Schema struct {
	Hello string
}

func (s *Schema) Query() graphql.Resolver {
	return graphql.Resolve{
		"hello": helloResolveFn,
	}
}

func (s *Schema) Mutation() graphql.Resolver {
	return graphql.Resolve{}
}

func helloResolveFn(p graphql.ResolveParams) (interface{}, error) {
	return "World", nil
}

func main() {
	query := `{ hello }`
	params := graphql.Params{Schema: &Schema, Query: query}
	r, err := graphql.Do(params)
	if err != nil {
		log.Printf("failed to do graphql operation, error: %v", err)
		return
	}
	log.Printf("graphql result: %v", r)
}