api

type AddEventInfo struct {
	RootUIDs []string                 `json:"rootUIDs"`
	Input    []map[string]interface{} `json:"input"`
}

type AuthHeader struct {
	Key   string `json:"key"`
	Value string `json:"value"`
}

type DBody struct {
	AccessToken string                     `json:"X-Dgraph-AccessToken"`
	Args        map[string]json.RawMessage `json:"args"`
	AuthHeader  AuthHeader                 `json:"authHeader"`
	Resolver    string                     `json:"resolver"`
	Parents     json.RawMessage            `json:"parents"`
	Event       Event                      `json:"event"`
}

type DeleteEventInfo struct {
	RootUIDs []string `json:"rootUIDs"`
}

type Event struct {
	TypeName  string          `json:"__typename"`
	CommitTs  uint64          `json:"commitTs"`
	Operation string          `json:"operation"`
	Add       AddEventInfo    `json:"add"`
	Update    UpdateEventInfo `json:"update"`
	Delete    DeleteEventInfo `json:"delete"`
}

type ExecuterInterface interface {
	Resolve(ctx context.Context, dbody DBody) ([]byte, *LambdaError)
}

type HandlerFunc func(ctx context.Context, input []byte, parents []byte, authHeader AuthHeader) (interface{}, error)

type HttpResponseStatus int

type Lambda struct {
	Executor ExecuterInterface
}

type LambdaError struct {
	Underlying error
	Status     HttpResponseStatus
}

type MiddlewareData struct {
	Ctx   context.Context
	Dbody DBody
}

type MiddlewareFunc func(MiddlewareData) MiddlewareData

type UpdateEventInfo struct {
	RootUIDs    []string               `json:"rootUIDs"`
	SetPatch    map[string]interface{} `json:"setPatch"`
	RemovePatch map[string]interface{} `json:"removePatch"`
}