mirror of
https://github.com/mainflux/mainflux.git
synced 2025-04-27 13:48:49 +08:00
88b30626dd
* Add logger interface and go-kit logger implementation Add wrapper logger interface and wrap go-kit logger in it. Add tests for info, warn, error and log methods. Add log filtering by level. Signed-off-by: Aleksandar Novakovic <anovakovic01@gmail.com> * Refactor logger and replace go-kit logger with wrapper Replace go-kit logger from services with logger wrapper. Refactor code in logger wrapper. Remove unnecessary subpackage, methods and log levels. Signed-off-by: Aleksandar Novakovic <anovakovic01@gmail.com>
79 lines
1.8 KiB
Go
79 lines
1.8 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/mainflux/mainflux"
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log "github.com/mainflux/mainflux/logger"
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"github.com/mainflux/mainflux/normalizer"
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nats "github.com/nats-io/go-nats"
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kitprometheus "github.com/go-kit/kit/metrics/prometheus"
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stdprometheus "github.com/prometheus/client_golang/prometheus"
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)
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const (
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defNatsURL string = nats.DefaultURL
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defPort string = "8180"
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envNatsURL string = "MF_NATS_URL"
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envPort string = "MF_NORMALIZER_PORT"
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)
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type config struct {
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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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NatsURL: mainflux.Env(envNatsURL, defNatsURL),
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Port: mainflux.Env(envPort, defPort),
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}
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logger := log.New(os.Stdout)
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nc, err := nats.Connect(cfg.NatsURL)
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if err != nil {
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logger.Error(fmt.Sprintf("Failed to connect to NATS: %s", err))
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os.Exit(1)
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}
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defer nc.Close()
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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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logger.Info(fmt.Sprintf("Normalizer service started, exposed port %s", cfg.Port))
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errs <- http.ListenAndServe(p, normalizer.MakeHandler())
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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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counter := kitprometheus.NewCounterFrom(stdprometheus.CounterOpts{
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Namespace: "normalizer",
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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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latency := kitprometheus.NewSummaryFrom(stdprometheus.SummaryOpts{
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Namespace: "normalizer",
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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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normalizer.Subscribe(nc, logger, counter, latency)
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err = <-errs
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logger.Error(fmt.Sprintf("Normalizer service terminated: %s", err))
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}
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