validate.go

//check https://github.com/wicoady1/redissimulation/blob/master/handler/service.response.go for full code

//validateResponse validate response, hold multiple / spam response with redis
func (m *Module) validateResponse(input string) error {
	//let's use "anti-spam:test" key as redis key
	key := fmt.Sprintf("anti-spam:%s", input)

	//check key, is it exist?
	value, err := m.Redis.Get(key)
	if err != nil {
		log.Fatal(err)
	}

	//value not nil, means the redis is already exists
	//therefore return error
	if value != nil {
		return fmt.Errorf("Value Exists, Please Wait")
	}

	//if there is no redis key
	//set new key with 10 second expiration time
	err = m.Redis.Setex(key, 10, "1")
	if err != nil {
		return err
	}

	return nil
}