helper

var (
	// ErrUnsupportedDriver is an error message for unsupported database driver
	ErrUnsupportedDriver = errors.New("unsupported database driver")
	// ErrUnsupportedTokenType is an error message for unsupported token type
	ErrUnsupportedTokenType = errors.New("unsupported token type")
	// ErrDataNotFound is an error message for requested data not found
	ErrDataNotFound = errors.New("data not found")
	// ErrDataAlreadyExists is an error message for unique key constraint violation
	ErrDataAlreadyExists = errors.New("data already exists")
	// ErrUnauthorized is an error message for unauthorized access
	ErrUnauthorized = errors.New("unauthorized")
	// ErrForbidden is an error message for forbidden access
	ErrForbidden = errors.New("forbidden")
	// ErrExpiredToken is an error message for expired token
	ErrExpiredToken = errors.New("token has expired")
	// ErrInvalidToken is an error message for invalid token
	ErrInvalidToken = errors.New("token is invalid")
	// ErrEmptyAuthorizationHeader is an error message for empty authorization header
	ErrEmptyAuthorizationHeader = errors.New("empty authorization header")
	// ErrInvalidAuthorizationHeader is an error message for invalid authorization header
	ErrInvalidAuthorizationHeader = errors.New("invalid authorization header")
	// ErrInvalidAuthorizationType is an error message for invalid authorization type
	ErrInvalidAuthorizationType = errors.New("invalid authorization type")
	// ErrInsufficientPermission is an error message for insufficient permission to access a resource
	ErrInsufficientPermission = errors.New("only admin can access this resource")
)