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implement graceful shutdown #78

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Merged
merged 1 commit into from
Jan 29, 2022
Merged

implement graceful shutdown #78

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31 changes: 29 additions & 2 deletions src/webserver.go
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,8 @@ import (
"errors"
"log"
"net/http"
"os"
"os/signal"
"strconv"
"strings"
"time"
Expand Down Expand Up @@ -134,8 +136,33 @@ func runWebServer() {
})
})

// Start the router
_ = router.Run() // listen and serve on 0.0.0.0:8080 (for windows "localhost:8080")
// build the http server
server := &http.Server{
Addr: ":8080", // listen and serve on 0.0.0.0:8080 (for windows "localhost:8080")
Handler: router,
}

// graceful shutdown
quit := make(chan os.Signal, 1)
signal.Notify(quit, os.Interrupt)

// we run a go routine that will receive the shutdown input
go func() {
<-quit
log.Println("Received shutdown input")
if err := server.Close(); err != nil {
log.Fatal("Server Close Error:", err)
}
}()

// run the server
if err := server.ListenAndServe(); err != nil {
if err == http.ErrServerClosed {
log.Println("Server gracefully shut down")
} else {
log.Fatal("Server closed unexpectedly")
}
}
}

// Character godoc
Expand Down