mirror of
https://github.com/mainflux/mainflux.git
synced 2025-04-27 13:48:49 +08:00
55bdc029c3
* Add service startup message Add startup message to manager, http, coap and normalizer services. Signed-off-by: Aleksandar Novakovic <anovakovic01@gmail.com> * Remove startup message from CoAP adapter Remove startup message from CoAP adapter. Remove overhead startup message variable. Signed-off-by: Aleksandar Novakovic <anovakovic01@gmail.com>
90 lines
2.2 KiB
Go
90 lines
2.2 KiB
Go
package main
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import (
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"fmt"
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"net/http"
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"os"
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"os/signal"
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"syscall"
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"github.com/go-kit/kit/log"
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kitprometheus "github.com/go-kit/kit/metrics/prometheus"
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"github.com/mainflux/mainflux"
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adapter "github.com/mainflux/mainflux/http"
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"github.com/mainflux/mainflux/http/api"
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"github.com/mainflux/mainflux/http/nats"
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manager "github.com/mainflux/mainflux/manager/client"
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broker "github.com/nats-io/go-nats"
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stdprometheus "github.com/prometheus/client_golang/prometheus"
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)
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const (
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defPort string = "8180"
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defNatsURL string = broker.DefaultURL
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defManagerURL string = "http://localhost:8180"
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envPort string = "MF_HTTP_ADAPTER_PORT"
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envNatsURL string = "MF_NATS_URL"
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envManagerURL string = "MF_MANAGER_URL"
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)
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type config struct {
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ManagerURL string
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NatsURL string
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Port string
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}
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func main() {
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cfg := config{
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ManagerURL: mainflux.Env(envManagerURL, defManagerURL),
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NatsURL: mainflux.Env(envNatsURL, defNatsURL),
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Port: mainflux.Env(envPort, defPort),
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}
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logger := log.NewJSONLogger(log.NewSyncWriter(os.Stdout))
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logger = log.With(logger, "ts", log.DefaultTimestampUTC)
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nc, err := broker.Connect(cfg.NatsURL)
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if err != nil {
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logger.Log("error", err)
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os.Exit(1)
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}
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defer nc.Close()
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pub := nats.NewMessagePublisher(nc)
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svc := adapter.New(pub)
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svc = api.LoggingMiddleware(svc, logger)
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svc = api.MetricsMiddleware(
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svc,
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kitprometheus.NewCounterFrom(stdprometheus.CounterOpts{
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Namespace: "http_adapter",
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Subsystem: "api",
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Name: "request_count",
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Help: "Number of requests received.",
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}, []string{"method"}),
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kitprometheus.NewSummaryFrom(stdprometheus.SummaryOpts{
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Namespace: "http_adapter",
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Subsystem: "api",
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Name: "request_latency_microseconds",
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Help: "Total duration of requests in microseconds.",
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}, []string{"method"}),
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)
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errs := make(chan error, 2)
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go func() {
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p := fmt.Sprintf(":%s", cfg.Port)
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mc := manager.NewClient(cfg.ManagerURL)
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logger.Log("message", fmt.Sprintf("HTTP adapter service started, exposed port %s", cfg.Port))
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errs <- http.ListenAndServe(p, api.MakeHandler(svc, mc))
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}()
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go func() {
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c := make(chan os.Signal)
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signal.Notify(c, syscall.SIGINT)
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errs <- fmt.Errorf("%s", <-c)
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}()
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logger.Log("terminated", <-errs)
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}
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