provide a way to run app

internal/api/http/middlewares.go

@@ -0,0 +1,76 @@
+package http
+
+import (
+	"log/slog"
+	"net/http"
+	"time"
+)
+
+type middlewareFunc func(http.Handler) http.Handler
+
+func middlewarePanicRecovery(log *slog.Logger) middlewareFunc {
+	return func(next http.Handler) http.Handler {
+		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			defer func() {
+				rec := recover()
+				if rec == nil {
+					return
+				}
+
+				log.ErrorContext(
+					r.Context(), "panic acquired during request",
+					slog.Any("panic", rec),
+				)
+			}()
+
+			next.ServeHTTP(w, r)
+		})
+	}
+}
+
+func middlewareLogger(log *slog.Logger) middlewareFunc {
+	return func(next http.Handler) http.Handler {
+		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			start := time.Now()
+
+			requestID := r.Header.Get("x-request-id")
+			if requestID == "" {
+				requestID = randomID()
+			}
+
+			w.Header().Set("x-request-id", requestID)
+
+			method := r.Method
+			path := r.URL.Path
+			query := r.URL.Query().Encode()
+
+			log.InfoContext(
+				r.Context(), "request processing",
+				slog.String("request_id", requestID),
+				slog.String("method", method),
+				slog.String("path", path),
+				slog.String("query", query),
+			)
+
+			next.ServeHTTP(w, r)
+
+			elapsed := time.Since(start)
+			log.InfoContext(
+				r.Context(), "request finished",
+				slog.Duration("elapsed", elapsed.Truncate(time.Millisecond)),
+			)
+		})
+	}
+}
+
+func multipleMiddlewares(mws ...middlewareFunc) middlewareFunc {
+	return func(next http.Handler) http.Handler {
+		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			for _, mw := range mws {
+				next = mw(next)
+			}
+
+			next.ServeHTTP(w, r)
+		})
+	}
+}