httpretty logger middleware

middleware.go

// HTTPLogger for https://github.com/henvic/httpretty
// to provide useful debugging info when running:
// $ DEBUG=api go run github.com/henvic/pgxtutorial/cmd/pgxtutorial
func HTTPLogger() func(http.Handler) http.Handler {
	if !strings.Contains(os.Getenv("DEBUG"), "api") {
		return nil
	}
	_, noColor := os.LookupEnv("NO_COLOR") // See https://no-color.org/
	if !noColor {
		if fileInfo, _ := os.Stdout.Stat(); (fileInfo.Mode() & os.ModeCharDevice) == 0 {
			noColor = true
		}
	}
	logger := &httpretty.Logger{
		Time:           true,
		TLS:            true,
		RequestHeader:  true,
		RequestBody:    true,
		ResponseHeader: true,
		ResponseBody:   true,
		Colors:         !noColor,
		Formatters:     []httpretty.Formatter{&httpretty.JSONFormatter{}},
	}
	logger.SetFlusher(httpretty.OnEnd)
	return logger.Middleware
}