package metrics import ( "context" "net/http" "go.uber.org/zap" ) // Service serves metrics. type Service struct { *http.Server enabled bool log *zap.Logger serviceType string } // Config is a params to configure service. type Config struct { Address string Enabled bool } // Start runs http service with the exposed endpoint on the configured port. func (ms *Service) Start() { if ms.enabled { ms.log.Info("service is running", zap.String("endpoint", ms.Addr)) err := ms.ListenAndServe() if err != nil && err != http.ErrServerClosed { ms.log.Warn("service couldn't start on configured port") } } else { ms.log.Info("service hasn't started since it's disabled") } } // ShutDown stops the service. func (ms *Service) ShutDown(ctx context.Context) { ms.log.Info("shutting down service", zap.String("endpoint", ms.Addr)) err := ms.Shutdown(ctx) if err != nil { ms.log.Panic("can't shut down service") } }