cleanup: typo and code

router.go

@@ -6,16 +6,12 @@ import (
 	"strings"
 )
 
-const RouteCtxKey = "ServeCTX"
-
-type (
-	// Router is a wrapper around the go's standard http.ServeMux.
-	// It's a lean wrapper with methods to make routing easier
-	Router struct {
-		mux         *http.ServeMux
-		middlewares []func(http.Handler) http.Handler
-	}
-)
+// Router is a wrapper around the go's standard http.ServeMux.
+// It's a lean wrapper with methods to make routing easier
+type Router struct {
+	mux         *http.ServeMux
+	middlewares []func(http.Handler) http.Handler
+}
 
 func NewRouter() *Router {
 	return &Router{
@@ -26,7 +22,7 @@ func NewRouter() *Router {
 // Use will register middleware(s) with router stack
 func (r *Router) Use(h ...func(http.Handler) http.Handler) {
 	if r == nil {
-		panic("serve: func Use was called on nil")
+		panic("mux: func Use was called on nil")
 	}
 	r.middlewares = append(r.middlewares, h...)
 }
@@ -81,7 +77,7 @@ func (r *Router) Trace(pattern string, h http.HandlerFunc) {
 // panics.
 func (r *Router) handlerFunc(method, pattern string, h http.HandlerFunc) {
 	if r == nil {
-		panic("serve: func Handle() was called on nil")
+		panic("mux: func Handle() was called on nil")
 	}
 
 	path := fmt.Sprintf("%s %s", method, pattern)
@@ -142,7 +138,7 @@ func (r *Router) Resource(pattern string, fn func(resource *Resource)) {
 
 func (r *Router) ServeHTTP(w http.ResponseWriter, req *http.Request) {
 	if r == nil {
-		panic("method ServeHTTP called on nil")
+		panic("mux: method ServeHTTP called on nil")
 	}
 
 	r.mux.ServeHTTP(w, req)

router_serve.go

@@ -2,6 +2,7 @@ package mux
 
 import (
 	"context"
+	"errors"
 	"log/slog"
 	"net/http"
 	"os"
@@ -10,7 +11,7 @@ import (
 
 type ServeCB func(srv *http.Server) error
 
-// Serve with gracefull shutdown
+// Serve with graceful shutdown
 func (r *Router) Serve(cb ServeCB) {
 	srv := &http.Server{
 		Handler: r,
@@ -32,7 +33,7 @@ func (r *Router) Serve(cb ServeCB) {
 		close(idleConnsClosed)
 	}()
 
-	if err := cb(srv); err != http.ErrServerClosed {
+	if err := cb(srv); !errors.Is(err, http.ErrServerClosed) {
 		// Error starting or closing listener:
 		slog.Error("start server error", "error", err)
 	}