feat: better loging

internal/server/middlewares.go

@@ -0,0 +1,46 @@
+package server
+
+import (
+	"fmt"
+	"log/slog"
+	"net/http"
+	"time"
+)
+
+type captureWriter struct {
+	http.ResponseWriter
+	code int
+}
+
+func (c *captureWriter) WriteHeader(statusCode int) {
+	c.code = statusCode
+	c.ResponseWriter.WriteHeader(statusCode)
+}
+
+func (s *Server) loggingMiddleware(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		start := time.Now()
+		cw := &captureWriter{
+			ResponseWriter: w,
+			code:           200,
+		}
+		next.ServeHTTP(cw, r)
+		slog.Info("request",
+			"method", r.Method,
+			"path", r.URL.Path,
+			"duration", time.Since(start),
+			"status", cw.code,
+		)
+	})
+}
+
+// cacheMiddleware adds Cache-Control headers to the response.
+func cacheMiddleware(maxAge time.Duration) func(next http.Handler) http.Handler {
+	return func(next http.Handler) http.Handler {
+		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			w.Header().Set("Cache-Control", fmt.Sprintf("public, max-age=%.0f", maxAge.Seconds()))
+			w.Header().Set("Vary", "HX-Request,Accept-Language,Accept-Encoding")
+			next.ServeHTTP(w, r)
+		})
+	}
+}