NewJWTMaker creates a new JWTMaker instance with a secret key.

NewPayload creates a new Payload with user information and duration.

RefreshToken generates a new JWT token with an extended expiration time based on the existing token's payload.

RemoveToken invalidates a JWT token by creating a new token with a short duration, effectively logging the user out.

JWTMaker is an implementation of the Maker interface for creating and verifying JWT tokens.

PayloadJWT represents the data stored in a JWT token.

Maker is an interface for creating and verifying JWT tokens.