Improve web service related aspects

internal/handler/stop.go

@@ -0,0 +1,20 @@
+package handler
+
+import (
+	"log"
+	"os"
+	"os/signal"
+	"syscall"
+)
+
+// HandleStop handles the stop signal and exits the program.
+func HandleStop() {
+	sigCh := make(chan os.Signal, 1)
+	signal.Notify(sigCh, syscall.SIGINT, syscall.SIGTERM)
+
+	go func() {
+		sig := <-sigCh
+		log.Printf("[Info] Received signal: %v，stopping...\r\n", sig)
+		os.Exit(0)
+	}()
+}