From 6508843fcc2f0b2cb8feaaa5699702f78a7f3566 Mon Sep 17 00:00:00 2001
From: 72 <72sevenzy2@gmail.com>
Date: Fri, 24 Apr 2026 18:47:21 +0500
Subject: [PATCH 1/5] Refactor Chain function to use Middleware type

---
 chain.go | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/chain.go b/chain.go
index a2278414..c3fa724c 100644
--- a/chain.go
+++ b/chain.go
@@ -2,8 +2,11 @@ package chi
 
 import "net/http"
 
+// middleware type
+type Middleware func(http.Handler) http.Handler
+
 // Chain returns a Middlewares type from a slice of middleware handlers.
-func Chain(middlewares ...func(http.Handler) http.Handler) Middlewares {
+func Chain(middlewares ...Middleware) Middlewares {
 	return Middlewares(middlewares)
 }
 
@@ -33,7 +36,7 @@ func (c *ChainHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 
 // chain builds a http.Handler composed of an inline middleware stack and endpoint
 // handler in the order they are passed.
-func chain(middlewares []func(http.Handler) http.Handler, endpoint http.Handler) http.Handler {
+func chain(middlewares []Middleware, endpoint http.Handler) http.Handler {
 	// Return ahead of time if there aren't any middlewares for the chain
 	if len(middlewares) == 0 {
 		return endpoint

From 3cad835c5f7041dc8984381e84cd05c089ae575c Mon Sep 17 00:00:00 2001
From: 72 <72sevenzy2@gmail.com>
Date: Fri, 24 Apr 2026 21:38:02 +0500
Subject: [PATCH 2/5] Refactor middleware type and Chain function signature

---
 chain.go | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/chain.go b/chain.go
index c3fa724c..9ffc585b 100644
--- a/chain.go
+++ b/chain.go
@@ -2,23 +2,25 @@ package chi
 
 import "net/http"
 
-// middleware type
-type Middleware func(http.Handler) http.Handler
+// middleware type alias
+type Middleware = func(http.Handler) http.Handler
+
+type Middlewares Middleware[]
 
 // Chain returns a Middlewares type from a slice of middleware handlers.
-func Chain(middlewares ...Middleware) Middlewares {
+func Chain(middlewares Middlewares) Middlewares {
 	return Middlewares(middlewares)
 }
 
 // Handler builds and returns a http.Handler from the chain of middlewares,
 // with `h http.Handler` as the final handler.
-func (mws Middlewares) Handler(h http.Handler) http.Handler {
+func (mws Middleware) Handler(h http.Handler) http.Handler {
 	return &ChainHandler{h, chain(mws, h), mws}
 }
 
 // HandlerFunc builds and returns a http.Handler from the chain of middlewares,
 // with `h http.Handler` as the final handler.
-func (mws Middlewares) HandlerFunc(h http.HandlerFunc) http.Handler {
+func (mws Middleware) HandlerFunc(h http.HandlerFunc) http.Handler {
 	return &ChainHandler{h, chain(mws, h), mws}
 }
 
@@ -36,7 +38,7 @@ func (c *ChainHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 
 // chain builds a http.Handler composed of an inline middleware stack and endpoint
 // handler in the order they are passed.
-func chain(middlewares []Middleware, endpoint http.Handler) http.Handler {
+func chain(middlewares Middlewares, endpoint http.Handler) http.Handler {
 	// Return ahead of time if there aren't any middlewares for the chain
 	if len(middlewares) == 0 {
 		return endpoint

From e740aec3bbf929679b3d640f033393a563380898 Mon Sep 17 00:00:00 2001
From: 72 <72sevenzy2@gmail.com>
Date: Fri, 24 Apr 2026 21:39:52 +0500
Subject: [PATCH 3/5] Rename Middleware to Middlewares in Handler methods

---
 chain.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/chain.go b/chain.go
index 9ffc585b..ce3744b6 100644
--- a/chain.go
+++ b/chain.go
@@ -14,13 +14,13 @@ func Chain(middlewares Middlewares) Middlewares {
 
 // Handler builds and returns a http.Handler from the chain of middlewares,
 // with `h http.Handler` as the final handler.
-func (mws Middleware) Handler(h http.Handler) http.Handler {
+func (mws Middlewares) Handler(h http.Handler) http.Handler {
 	return &ChainHandler{h, chain(mws, h), mws}
 }
 
 // HandlerFunc builds and returns a http.Handler from the chain of middlewares,
 // with `h http.Handler` as the final handler.
-func (mws Middleware) HandlerFunc(h http.HandlerFunc) http.Handler {
+func (mws Middlewares) HandlerFunc(h http.HandlerFunc) http.Handler {
 	return &ChainHandler{h, chain(mws, h), mws}
 }
 

From a01c4aa28104dc790abc61cf7914e6e11916f186 Mon Sep 17 00:00:00 2001
From: 72 <72sevenzy2@gmail.com>
Date: Sun, 26 Apr 2026 18:30:32 +0500
Subject: [PATCH 4/5] Add Middleware type alias in chi.go

Added type alias for Middleware and Middlewares.
---
 chi.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/chi.go b/chi.go
index f650116a..99e1cf69 100644
--- a/chi.go
+++ b/chi.go
@@ -61,6 +61,11 @@ func NewRouter() *Mux {
 	return NewMux()
 }
 
+// middleware type alias (for chain.go) 
+type Middleware = func(http.Handler) http.Handler
+
+type Middlewares Middleware[]
+
 // Router consisting of the core routing methods used by chi's Mux,
 // using only the standard net/http.
 type Router interface {

From dc24abc14e8718367910f9797060ea572cf4feb7 Mon Sep 17 00:00:00 2001
From: 72 <72sevenzy2@gmail.com>
Date: Sun, 26 Apr 2026 18:30:49 +0500
Subject: [PATCH 5/5] Refactor middleware type definitions

Removed type alias for Middleware and Middlewares.
---
 chain.go | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/chain.go b/chain.go
index ce3744b6..838c5b11 100644
--- a/chain.go
+++ b/chain.go
@@ -2,11 +2,6 @@ package chi
 
 import "net/http"
 
-// middleware type alias
-type Middleware = func(http.Handler) http.Handler
-
-type Middlewares Middleware[]
-
 // Chain returns a Middlewares type from a slice of middleware handlers.
 func Chain(middlewares Middlewares) Middlewares {
 	return Middlewares(middlewares)