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main.go
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main.go
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package main
import (
"context"
"fmt"
"net/http"
"os"
"os/signal"
"time"
"github.com/sirupsen/logrus"
"github.com/spf13/viper"
"github.com/train-cat/bot/helper"
"github.com/train-cat/bot/notify"
)
func main() {
stop := make(chan os.Signal, 1)
signal.Notify(stop, os.Interrupt)
// === route ===
http.HandleFunc("/notify", notify.Handler)
http.Handle("/webhook", getHandler())
http.HandleFunc("/health_check", healthCheck)
http.Handle("/", http.NotFoundHandler())
h := http.Server{
Addr: fmt.Sprintf(":%d", viper.GetInt("http.port")),
}
go func() {
logrus.Infof("HTTP Server listening on %s", h.Addr)
if err := h.ListenAndServe(); err != nil {
logrus.Fatal(err.Error())
os.Exit(helper.ExitCodeErrorListenServer)
}
}()
<-stop
logrus.Info("Graceful shutdown...")
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
err := h.Shutdown(ctx)
if err != nil {
logrus.Fatal(err.Error())
os.Exit(helper.ExitCodeErrorStopServer)
}
}
func healthCheck(w http.ResponseWriter, _ *http.Request) {
w.WriteHeader(http.StatusOK)
w.Write([]byte("{\"status\": \"OK\"}"))
}