cli/shurcooL-graphql

go get -u github.com/cli/shurcooL-graphql

client := graphql.NewClient("https://example.com/graphql", nil)
// Use client...

import "golang.org/x/oauth2"

func main() {
	src := oauth2.StaticTokenSource(
		&oauth2.Token{AccessToken: os.Getenv("GRAPHQL_TOKEN")},
	)
	httpClient := oauth2.NewClient(context.Background(), src)

	client := graphql.NewClient("https://example.com/graphql", httpClient)
	// Use client...

query {
	me {
		name
	}
}

var query struct {
	Me struct {
		Name graphql.String
	}
}

err := client.Query(context.Background(), &query, nil)
if err != nil {
	// Handle error.
}
fmt.Println(query.Me.Name)

// Output: Luke Skywalker

{
	human(id: "1000") {
		name
		height(unit: METER)
	}
}

var q struct {
	Human struct {
		Name   graphql.String
		Height graphql.Float `graphql:"height(unit: METER)"`
	} `graphql:"human(id: \"1000\")"`
}

err := client.Query(context.Background(), &q, nil)
if err != nil {
	// Handle error.
}
fmt.Println(q.Human.Name)
fmt.Println(q.Human.Height)

// Output:
// Luke Skywalker
// 1.72

var q struct {
	Human struct {
		Name   graphql.String
		Height graphql.Float `graphql:"height(unit: $unit)"`
	} `graphql:"human(id: $id)"`
}

variables := map[string]any{
	"id":   graphql.ID(id),
	"unit": starwars.LengthUnit("METER"),
}

err := client.Query(context.Background(), &q, variables)
if err != nil {
	// Handle error.
}

{
	hero(episode: "JEDI") {
		name
		... on Droid {
			primaryFunction
		}
		... on Human {
			height
		}
	}
}

var q struct {
	Hero struct {
		Name  graphql.String
		Droid struct {
			PrimaryFunction graphql.String
		} `graphql:"... on Droid"`
		Human struct {
			Height graphql.Float
		} `graphql:"... on Human"`
	} `graphql:"hero(episode: \"JEDI\")"`
}

type (
	DroidFragment struct {
		PrimaryFunction graphql.String
	}
	HumanFragment struct {
		Height graphql.Float
	}
)

var q struct {
	Hero struct {
		Name          graphql.String
		DroidFragment `graphql:"... on Droid"`
		HumanFragment `graphql:"... on Human"`
	} `graphql:"hero(episode: \"JEDI\")"`
}

err := client.Query(context.Background(), &q, nil)
if err != nil {
	// Handle error.
}
fmt.Println(q.Hero.Name)
fmt.Println(q.Hero.PrimaryFunction)
fmt.Println(q.Hero.Height)

// Output:
// R2-D2
// Astromech
// 0

mutation($ep: Episode!, $review: ReviewInput!) {
	createReview(episode: $ep, review: $review) {
		stars
		commentary
	}
}
variables {
	"ep": "JEDI",
	"review": {
		"stars": 5,
		"commentary": "This is a great movie!"
	}
}

var m struct {
	CreateReview struct {
		Stars      graphql.Int
		Commentary graphql.String
	} `graphql:"createReview(episode: $ep, review: $review)"`
}
variables := map[string]any{
	"ep": starwars.Episode("JEDI"),
	"review": starwars.ReviewInput{
		Stars:      graphql.Int(5),
		Commentary: graphql.String("This is a great movie!"),
	},
}

err := client.Mutate(context.Background(), &m, variables)
if err != nil {
	// Handle error.
}
fmt.Printf("Created a %v star review: %v\n", m.CreateReview.Stars, m.CreateReview.Commentary)

// Output:
// Created a 5 star review: This is a great movie!