logger

type APICallCounter struct {
	sync.Map
}

type Appender interface {
	UpdateDB(ctx context.Context)
	Do(key, path string, r *http.Request,
		apiResp *http.Response, calcBillingStatus func(resp *http.Response) BillingStatus) error
}

type BillingStatus int

type CSVAppender struct {
	Writer *csv.Writer

	LogItems LogItems
}

type DefaultAppender struct {
	Writer   io.Writer
	LogItems LogItems
}

type LogItem struct {
	TimeStamp     string        `dynamo:"timestamp"`
	Key           string        `dynamo:"api_key"`
	Path          string        `dynamo:"path"`
	StatusCode    int           `dynamo:"status_code"`
	BillingStatus BillingStatus `dynamo:"billing_status"`
}

type LogItems struct {
	sync.Mutex
	Items []LogItem
}

type LogOption func(record *[]string, logItem *LogItem, r *http.Request)