CheckPassword checks if the provided password is correct or not.

HashPassword returns the bcrypt hash of the password.

NewPayload creates a new tokens payload with a specific username and duration.

RandomInt generates a random integer between min and max.

RandomString generates a random string of length n.

Different types of error returned by the VerifyToken function.

Different types of error returned by the VerifyToken function.

JWTMaker is a JSON Web Token maker.

TokenPayload contains the payload data of the tokens.

TokenMaker is an interface for managing tokens.