honestbank/hijack

Hi, Jack! A library for hijacking graphql requests

Hijack (Hi Jack!)

Hijack lets you hijack graphql requests on the fly and return custom responses based on operation being fired.

Examples:

hijack/hijack_example_test.go

Lines 23 to 45 in 1de6922

	defer hijack.Start(func(operationName string) (string, error) {
	return `{
	"data": {
	"character": {
	"id": "11 (Mock)",
	"name": "Albert Einstein (from mock)",
	"status": "Alive (mock)"
	}
	}
	}`, nil
	}, "rickandmortyapi.com")()
	client := graphql.NewClient("https://rickandmortyapi.com/graphql")
	request := graphql.NewRequest(`query GetCharacterByID{ character(id:"11"){id, name, status }}`)
	response := OperationResult{}
	_ = client.Run(context.Background(), request, &response)
	fmt.Println(response.Character.ID)
	fmt.Println(response.Character.Name)
	fmt.Println(response.Character.Status)
	//Output:11 (Mock)
	// Albert Einstein (from mock)
	// Alive (mock)

hijack/hijack_example_test.go

Lines 49 to 77 in 1de6922

	h := handlers.New()
	h.Set("GetCharacterByID", func(operationName string) (string, error) {
	return `{
	"data": {
	"character": {
	"id": "11 (Mock)",
	"name": "Albert Einstein (from mock)",
	"status": "Alive (mock)"
	}
	}
	}`, nil
	})
	h.Set("BadOperation", func(operationName string) (string, error) {
	return "", errors.New("error")
	})
	defer hijack.Start(h.Handle, "rickandmortyapi.com")()
	client := graphql.NewClient("https://rickandmortyapi.com/graphql")
	request := graphql.NewRequest(`query GetCharacterByID{ character(id:"11"){id, name, status }}`)
	response := OperationResult{}
	_ = client.Run(context.Background(), request, &response)
	fmt.Println(response.Character.ID)
	fmt.Println(response.Character.Name)
	fmt.Println(response.Character.Status)
	//Output:11 (Mock)
	// Albert Einstein (from mock)
	// Alive (mock)

Planned Features (PRs welcome)

• fixtures support
• handlers with input and operation name