model

type City struct {
	ID       int64  `json:"id"`
	Name     string `json:"name"`
	TimeZone int64  `json:"time_zone"`
}

type Error struct {
	Type    string `json:"type"`    // The type of error returned. Can be … TODO.
	Message string `json:"message"` // optional	A human-readable message giving more details about the error. If something needs to be shown to end-users, this should be it.
	Param   string `json:"param"`   // The parameter the error relates to if the error is parameter-specific.
}

type Login struct {
	Login    string `json:"login" binding:"required"`
	Password string `json:"password" binding:"required"`
}

type User struct {
	ID       int64  `json:"id"`
	Login    string `json:"login" binding:"required"`
	Password string `json:"password" binding:"required"`
	Email    string `json:"email" binding:"required"`
	Cities   []City `json:"cities"`
}