feat: move capytalcode/project-comicverse/libs to ./groute

groute/middleware/dev.go

@@ -0,0 +1,73 @@
+package middleware
+
+import (
+	"log/slog"
+	"math/rand"
+	"net/http"
+)
+
+func DevMiddleware(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Cache-Control", "no-store")
+		next.ServeHTTP(w, r)
+	})
+}
+
+type loggerReponse struct {
+	http.ResponseWriter
+	status int
+}
+
+func (lr *loggerReponse) WriteHeader(s int) {
+	lr.status = s
+	lr.ResponseWriter.WriteHeader(s)
+}
+
+func NewLoggerMiddleware(l *slog.Logger) Middleware {
+	l = l.WithGroup("logger_middleware")
+	return func(next http.Handler) http.Handler {
+		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			id := randHash(5)
+
+			l.Info("NEW REQUEST",
+				slog.String("id", id),
+				slog.String("status", "xxx"),
+				slog.String("method", r.Method),
+				slog.String("path", r.URL.Path),
+			)
+
+			lw := &loggerReponse{w, http.StatusOK}
+			next.ServeHTTP(lw, r)
+
+			if lw.status >= 400 {
+				l.Warn("ERR REQUEST",
+					slog.String("id", id),
+					slog.Int("status", lw.status),
+					slog.String("method", r.Method),
+					slog.String("path", r.URL.Path),
+				)
+				return
+			}
+
+			l.Info("END REQUEST",
+				slog.String("id", id),
+				slog.Int("status", lw.status),
+				slog.String("method", r.Method),
+				slog.String("path", r.URL.Path),
+			)
+		})
+	}
+}
+
+const HASH_CHARS = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
+
+// This is not the most performant function, as a TODO we could
+// improve based on this Stackoberflow thread:
+// https://stackoverflow.com/questions/22892120/how-to-generate-a-random-string-of-a-fixed-length-in-go
+func randHash(n int) string {
+	b := make([]byte, n)
+	for i := range b {
+		b[i] = HASH_CHARS[rand.Int63()%int64(len(HASH_CHARS))]
+	}
+	return string(b)
+}