models

type Book struct {
	ID     int    `json:"id"`
	Title  string `json:"title"`
	Author string `json:"author"`
	Year   string `json:"year"`
}

type BookDB interface {
	GetBooks() ([]Book, error)
	GetBook(id int) (*Book, error)
	AddBook(book *Book) (int64, error)
	UpdateBook(book *Book) (int64, error)
	RemoveBook(id int) (int64, error)
}

type BookService interface {
	BookDB
}

type Error struct {
	Message string `json:"message"`
}

type Service struct {
	Book BookService
	// contains filtered or unexported fields
}

type ServiceConfig func(*Service) error