entity

type Account struct {
	Password string `json:"password"`
	Username string `json:"username"`
}

type Book struct {
	ID      string `json:"id"`
	Title   string `json:"title"`
	Content string `json:"content"`
}

type Claims struct {
	//TODO: Add more info to track user see: https://stackoverflow.com/questions/216542/how-do-i-uniquely-identify-computers-visiting-my-web-site/3287761#
	Username  string `json:"username"`
	UserAgent string `json:"user_agent"`
	jwt.StandardClaims
}