add logger

cmd/observ.go

@@ -3,14 +3,25 @@ package main
 import (
 	"net/http"
 
+	"git.mak-sim.ru/maksim/observability_2025/internal/logger"
 	"github.com/go-chi/chi/v5"
+	"go.uber.org/zap"
 )
 
 func main() {
+	logger, err := logger.GetLogger(false)
+	if err != nil {
+		panic(err)
+	}
 	r := chi.NewRouter()
 
 	r.Get("/", func(w http.ResponseWriter, r *http.Request) {
-		w.Write([]byte("welcome")) //nolint:errcheck
+		_, err := w.Write([]byte("welcome"))
+		if err != nil {
+			logger.Error("Error writing response", zap.Error(err))
+		}
 	})
+
+	logger.Info("Server started")
 	http.ListenAndServe(":8080", r) //nolint:errcheck
-}
+}