Function verifyToken

ch12/jwt/token.go:54–70

(tokenString string)

}

func verifyToken(tokenString string) (*CustomClaims, error) {
	token, err := jwt.ParseWithClaims(tokenString, &CustomClaims{}, keyFunc)
	if err != nil {
		return nil, err
	}

	claims, ok := token.Claims.(*CustomClaims)
	if !ok {
		return nil, fmt.Errorf("unknown claims type")
	}

	if time.Now().After(claims.ExpiresAt.Time) {
		return nil, fmt.Errorf("token expired")
	}

	return claims, nil
}