first commit to git

backend/cmd/api/main.go

@@ -0,0 +1,56 @@
+package main
+
+import (
+	"context"
+	"errors"
+	"log/slog"
+	"net/http"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+)
+
+func main() {
+	addr := getenv("BACKEND_ADDR", ":8080")
+	logger := slog.New(slog.NewJSONHandler(os.Stdout, nil))
+
+	mux := http.NewServeMux()
+	mux.HandleFunc("GET /healthz", func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Content-Type", "application/json")
+		_, _ = w.Write([]byte(`{"status":"ok","service":"backend"}`))
+	})
+
+	server := &http.Server{
+		Addr:              addr,
+		Handler:           mux,
+		ReadHeaderTimeout: 5 * time.Second,
+	}
+
+	ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)
+	defer stop()
+
+	go func() {
+		logger.Info("backend listening", "addr", addr)
+		if err := server.ListenAndServe(); err != nil && !errors.Is(err, http.ErrServerClosed) {
+			logger.Error("backend failed", "error", err)
+			os.Exit(1)
+		}
+	}()
+
+	<-ctx.Done()
+
+	shutdownCtx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+	if err := server.Shutdown(shutdownCtx); err != nil {
+		logger.Error("backend shutdown failed", "error", err)
+		os.Exit(1)
+	}
+}
+
+func getenv(key, fallback string) string {
+	if value := os.Getenv(key); value != "" {
+		return value
+	}
+	return fallback
+}

backend/go.mod

@@ -0,0 +1,3 @@
+module proxui/backend
+
+go 1.22

backend/internal/config/.gitkeep

@@ -0,0 +1 @@
+

backend/internal/httpx/.gitkeep

@@ -0,0 +1 @@
+