How to connect Graphql with Golang

To use GraphQL with Go, you will need to use a GraphQL library that provides a set of functions and types for building a GraphQL server. One popular library for this purpose is "graphql-go", which you can install using the following command:

go get -u

Here's a brief example of how you might use "graphql-go" to set up a GraphQL server in Go:

package main

import (


// Define a GraphQL type for a person
var personType = graphql.NewObject(graphql.ObjectConfig{
	Name: "Person",
	Fields: graphql.Fields{
		"name": &graphql.Field{
			Type: graphql.String,
		"age": &graphql.Field{
			Type: graphql.Int,

// Define a GraphQL query for a list of people
var queryType = graphql.NewObject(graphql.ObjectConfig{
	Name: "Query",
	Fields: graphql.Fields{
		"people": &graphql.Field{
			Type: graphql.NewList(personType),
			Resolve: func(p graphql.ResolveParams) (interface{}, error) {
				// Return a list of people
				return []Person{
					Person{Name: "Alice", Age: 25},
					Person{Name: "Bob", Age: 30},
				}, nil

// Define the GraphQL schema
var schema, _ = graphql.NewSchema(graphql.SchemaConfig{
	Query: queryType,

func main() {
	http.HandleFunc("/graphql", func(w http.ResponseWriter, r *http.Request) {
		// Parse the GraphQL query
		query, err := graphql.Parse(r.URL.Query().Get("query"))
		if err != nil {
			http.Error(w, err.Error(), http.StatusBadRequest)

		// Execute the query and get the result
		result := graphql.Do(graphql.Params{
			Schema:        schema,
			RequestString: query,

		// Marshal the result as JSON and write it to the response

	log.Fatal(http.ListenAndServe(":8080", nil))

This example defines a GraphQL schema with a single type Person and a query for a list of people. It then sets up an HTTP server that listens for GraphQL requests and executes the queries using the defined schema.

I hope this helps! Let me know if you have any questions.