AllPromotions returns a slice of Promotion (all promotions in promotions table).

PromotionCreate creates a promotion instance in the database.

PromotionDelete deletes a promotion instance from the database.

PromotionFind finds a promotion instance by ID in the database.

PromotionIndex => returns a slice of all promotions in the database.

PromotionUpdate Updates a promotion instance in the database.

GenericResponse returns timestamp and status to promotion in JSON.

Promotion represents a promotion instance.