Example #1
0
File: main.go Project: crezam/kit
func main() {
	var (
		addr  = envString("PORT", defaultPort)
		rsurl = envString("ROUTINGSERVICE_URL", defaultRoutingServiceURL)

		httpAddr          = flag.String("http.addr", ":"+addr, "HTTP listen address")
		routingServiceURL = flag.String("service.routing", rsurl, "routing service URL")

		ctx = context.Background()
	)

	flag.Parse()

	var logger log.Logger
	logger = log.NewLogfmtLogger(os.Stderr)
	logger = &serializedLogger{Logger: logger}
	logger = log.NewContext(logger).With("ts", log.DefaultTimestampUTC)

	var (
		cargos         = repository.NewCargo()
		locations      = repository.NewLocation()
		voyages        = repository.NewVoyage()
		handlingEvents = repository.NewHandlingEvent()
	)

	// Configure some questionable dependencies.
	var (
		handlingEventFactory = cargo.HandlingEventFactory{
			CargoRepository:    cargos,
			VoyageRepository:   voyages,
			LocationRepository: locations,
		}
		handlingEventHandler = handling.NewEventHandler(
			inspection.NewService(cargos, handlingEvents, nil),
		)
	)

	// Facilitate testing by adding some cargos.
	storeTestData(cargos)

	fieldKeys := []string{"method"}

	var rs routing.Service
	rs = routing.NewProxyingMiddleware(*routingServiceURL, ctx)(rs)

	var bs booking.Service
	bs = booking.NewService(cargos, locations, handlingEvents, rs)
	bs = booking.NewLoggingService(log.NewContext(logger).With("component", "booking"), bs)
	bs = booking.NewInstrumentingService(
		kitprometheus.NewCounter(stdprometheus.CounterOpts{
			Namespace: "api",
			Subsystem: "booking_service",
			Name:      "request_count",
			Help:      "Number of requests received.",
		}, fieldKeys),
		metrics.NewTimeHistogram(time.Microsecond, kitprometheus.NewSummary(stdprometheus.SummaryOpts{
			Namespace: "api",
			Subsystem: "booking_service",
			Name:      "request_latency_microseconds",
			Help:      "Total duration of requests in microseconds.",
		}, fieldKeys)), bs)

	var ts tracking.Service
	ts = tracking.NewService(cargos, handlingEvents)
	ts = tracking.NewLoggingService(log.NewContext(logger).With("component", "tracking"), ts)
	ts = tracking.NewInstrumentingService(
		kitprometheus.NewCounter(stdprometheus.CounterOpts{
			Namespace: "api",
			Subsystem: "tracking_service",
			Name:      "request_count",
			Help:      "Number of requests received.",
		}, fieldKeys),
		metrics.NewTimeHistogram(time.Microsecond, kitprometheus.NewSummary(stdprometheus.SummaryOpts{
			Namespace: "api",
			Subsystem: "tracking_service",
			Name:      "request_latency_microseconds",
			Help:      "Total duration of requests in microseconds.",
		}, fieldKeys)), ts)

	var hs handling.Service
	hs = handling.NewService(handlingEvents, handlingEventFactory, handlingEventHandler)
	hs = handling.NewLoggingService(log.NewContext(logger).With("component", "handling"), hs)
	hs = handling.NewInstrumentingService(
		kitprometheus.NewCounter(stdprometheus.CounterOpts{
			Namespace: "api",
			Subsystem: "handling_service",
			Name:      "request_count",
			Help:      "Number of requests received.",
		}, fieldKeys),
		metrics.NewTimeHistogram(time.Microsecond, kitprometheus.NewSummary(stdprometheus.SummaryOpts{
			Namespace: "api",
			Subsystem: "handling_service",
			Name:      "request_latency_microseconds",
			Help:      "Total duration of requests in microseconds.",
		}, fieldKeys)), hs)

	httpLogger := log.NewContext(logger).With("component", "http")

	mux := http.NewServeMux()

	mux.Handle("/booking/v1/", booking.MakeHandler(ctx, bs, httpLogger))
	mux.Handle("/tracking/v1/", tracking.MakeHandler(ctx, ts, httpLogger))
	mux.Handle("/handling/v1/", handling.MakeHandler(ctx, hs, httpLogger))

	http.Handle("/", accessControl(mux))
	http.Handle("/metrics", stdprometheus.Handler())

	errs := make(chan error, 2)
	go func() {
		logger.Log("transport", "http", "address", *httpAddr, "msg", "listening")
		errs <- http.ListenAndServe(*httpAddr, nil)
	}()
	go func() {
		c := make(chan os.Signal)
		signal.Notify(c, syscall.SIGINT)
		errs <- fmt.Errorf("%s", <-c)
	}()

	logger.Log("terminated", <-errs)
}
Example #2
0
File: main.go Project: qband/down
func main() {
	var (
		addr  = envString("PORT", defaultPort)
		rsurl = envString("ROUTINGSERVICE_URL", defaultRoutingServiceURL)

		httpAddr          = flag.String("http.addr", ":"+addr, "HTTP listen address")
		routingServiceURL = flag.String("service.routing", rsurl, "routing service URL")

		ctx = context.Background()
	)

	flag.Parse()

	var logger log.Logger
	logger = log.NewLogfmtLogger(os.Stderr)
	logger = &serializedLogger{Logger: logger}
	logger = log.NewContext(logger).With("ts", log.DefaultTimestampUTC)

	var (
		cargos         = repository.NewCargo()
		locations      = repository.NewLocation()
		voyages        = repository.NewVoyage()
		handlingEvents = repository.NewHandlingEvent()
	)

	// Configure some questionable dependencies.
	var (
		handlingEventFactory = cargo.HandlingEventFactory{
			CargoRepository:    cargos,
			VoyageRepository:   voyages,
			LocationRepository: locations,
		}
		handlingEventHandler = handling.NewEventHandler(
			inspection.NewService(cargos, handlingEvents, nil),
		)
	)

	// Facilitate testing by adding some cargos.
	storeTestData(cargos)

	var rs routing.Service
	rs = routing.NewProxyingMiddleware(*routingServiceURL, ctx)(rs)

	var bs booking.Service
	bs = booking.NewService(cargos, locations, handlingEvents, rs)
	bs = booking.NewLoggingService(log.NewContext(logger).With("component", "booking"), bs)

	var ts tracking.Service
	ts = tracking.NewService(cargos, handlingEvents)
	ts = tracking.NewLoggingService(log.NewContext(logger).With("component", "tracking"), ts)

	var hs handling.Service
	hs = handling.NewService(handlingEvents, handlingEventFactory, handlingEventHandler)
	hs = handling.NewLoggingService(log.NewContext(logger).With("component", "handling"), hs)

	httpLogger := log.NewContext(logger).With("component", "http")

	mux := http.NewServeMux()

	mux.Handle("/booking/v1/", booking.MakeHandler(ctx, bs, httpLogger))
	mux.Handle("/tracking/v1/", tracking.MakeHandler(ctx, ts, httpLogger))
	mux.Handle("/handling/v1/", handling.MakeHandler(ctx, hs, httpLogger))

	http.Handle("/", accessControl(mux))

	errs := make(chan error, 2)
	go func() {
		logger.Log("transport", "http", "address", *httpAddr, "msg", "listening")
		errs <- http.ListenAndServe(*httpAddr, nil)
	}()
	go func() {
		c := make(chan os.Signal)
		signal.Notify(c, syscall.SIGINT)
		errs <- fmt.Errorf("%s", <-c)
	}()

	logger.Log("terminated", <-errs)
}