Added Server interface

Benchmarks_test.go

@@ -2,38 +2,62 @@ package server_test
 
 import (
 	"net/http/httptest"
+	"strings"
 	"testing"
 
 	"git.akyoto.dev/go/router/testdata"
 	"git.akyoto.dev/go/server"
 )
 
-func BenchmarkHello(b *testing.B) {
+func BenchmarkStatic(b *testing.B) {
-	request := httptest.NewRequest("GET", "/", nil)
+	paths := []string{
-	response := &NullResponse{}
+		"/",
+		"/hello",
+		"/hello/world",
+	}
+
 	s := server.New()
 
-	s.Get("/", func(ctx server.Context) error {
+	for _, path := range paths {
+		s.Get(path, func(ctx server.Context) error {
 			return ctx.String("Hello")
 		})
+	}
+
+	for _, path := range paths {
+		b.Run(strings.TrimPrefix(path, "/"), func(b *testing.B) {
+			request := httptest.NewRequest("GET", path, nil)
+			response := &NullResponse{}
 
 			for range b.N {
 				s.ServeHTTP(response, request)
 			}
+		})
+	}
 }
 
 func BenchmarkGitHub(b *testing.B) {
-	request := httptest.NewRequest("GET", "/repos/:owner/:repo", nil)
+	paths := []string{
-	response := &NullResponse{}
+		"/gists/:id",
+		"/repos/:a/:b",
+	}
+
 	s := server.New()
 
 	for _, route := range testdata.Routes("testdata/github.txt") {
-		s.Router.Add(route.Method, route.Path, func(server.Context) error {
+		s.Router().Add(route.Method, route.Path, func(ctx server.Context) error {
-			return nil
+			return ctx.String("Hello")
 		})
 	}
 
+	for _, path := range paths {
+		b.Run(strings.TrimPrefix(path, "/"), func(b *testing.B) {
+			request := httptest.NewRequest("GET", path, nil)
+			response := &NullResponse{}
+
 			for range b.N {
 				s.ServeHTTP(response, request)
 			}
+		})
+	}
 }

Context.go

@@ -24,16 +24,18 @@ type Context interface {
 	Reader(io.Reader) error
 	RequestHeader(key string) string
 	ResponseHeader(key string) string
+	Scheme() string
 	Status(status int) Context
 	String(string) error
 	Write([]byte) (int, error)
+	WriteString(string) (int, error)
 }
 
 // ctx represents a request & response context.
 type ctx struct {
 	request      *http.Request
 	response     http.ResponseWriter
-	server       *Server
+	server       *server
 	paramNames   [maxParams]string
 	paramValues  [maxParams]string
 	paramCount   int
@@ -64,7 +66,7 @@ func (ctx *ctx) Error(messages ...any) error {
 
 // Get retrieves a parameter.
 func (ctx *ctx) Get(param string) string {
-	for i := 0; i < ctx.paramCount; i++ {
+	for i := range ctx.paramCount {
 		if ctx.paramNames[i] == param {
 			return ctx.paramValues[i]
 		}
@@ -120,6 +122,11 @@ func (ctx *ctx) Reader(reader io.Reader) error {
 	return err
 }
 
+// Scheme returns either `http` or `https`.
+func (ctx *ctx) Scheme() string {
+	return ctx.request.URL.Scheme
+}
+
 // Status sets the HTTP status of the response.
 func (ctx *ctx) Status(status int) Context {
 	ctx.response.WriteHeader(status)
@@ -137,6 +144,11 @@ func (ctx *ctx) Write(body []byte) (int, error) {
 	return ctx.response.Write(body)
 }
 
+// WriteString implements the io.StringWriter interface.
+func (ctx *ctx) WriteString(body string) (int, error) {
+	return ctx.response.(io.StringWriter).WriteString(body)
+}
+
 // addParameter adds a new parameter to the context.
 func (ctx *ctx) addParameter(name string, value string) {
 	ctx.paramNames[ctx.paramCount] = name

README.md

@@ -50,8 +50,11 @@ coverage: 100.0% of statements
 ## Benchmarks
 
 ```
-BenchmarkHello-12       35983602                33.28 ns/op            0 B/op          0 allocs/op
+BenchmarkStatic/#00-12          33616044                33.82 ns/op            0 B/op          0 allocs/op
-BenchmarkGitHub-12      18320769                68.66 ns/op            0 B/op          0 allocs/op
+BenchmarkStatic/hello-12        26220148                43.75 ns/op            0 B/op          0 allocs/op
+BenchmarkStatic/hello/world-12  19777713                58.89 ns/op            0 B/op          0 allocs/op
+BenchmarkGitHub/gists/:id-12    20842587                56.36 ns/op            0 B/op          0 allocs/op
+BenchmarkGitHub/repos/:a/:b-12  17875575                65.04 ns/op            0 B/op          0 allocs/op
 ```
 
 ## License

Server.go

@@ -2,32 +2,46 @@ package server
 
 import (
 	"context"
-	"io"
 	"log"
 	"net"
 	"net/http"
 	"os"
 	"os/signal"
+	"sync"
 	"syscall"
 
 	"git.akyoto.dev/go/router"
 )
 
-// Server represents a single web service.
+// Server is the interface for an HTTP server.
-type Server struct {
+type Server interface {
-	Router   *router.Router[Handler]
+	http.Handler
-	Config   Configuration
+	Delete(path string, handler Handler)
-	handlers []Handler
+	Get(path string, handler Handler)
+	Post(path string, handler Handler)
+	Put(path string, handler Handler)
+	Router() *router.Router[Handler]
+	Run(address string) error
+	Use(handlers ...Handler)
 }
 
-// New creates a new server.
+// server is an HTTP server.
-func New() *Server {
+type server struct {
-	return &Server{
+	pool         sync.Pool
-		Router: router.New[Handler](),
+	handlers     []Handler
-		Config: defaultConfig(),
+	router       router.Router[Handler]
+	errorHandler func(Context, error)
+	config       Configuration
+}
+
+// New creates a new HTTP server.
+func New() Server {
+	s := &server{
+		router: router.Router[Handler]{},
+		config: defaultConfig(),
 		handlers: []Handler{
 			func(c Context) error {
-				handler := c.(*ctx).server.Router.LookupNoAlloc(c.Method(), c.Path(), c.(*ctx).addParameter)
+				handler := c.(*ctx).server.router.LookupNoAlloc(c.Method(), c.Path(), c.(*ctx).addParameter)
 
 				if handler == nil {
 					return c.Status(http.StatusNotFound).String(http.StatusText(http.StatusNotFound))
@@ -36,56 +50,64 @@ func New() *Server {
 				return handler(c)
 			},
 		},
+		errorHandler: func(ctx Context, err error) {
+			ctx.WriteString(err.Error())
+			log.Println(ctx.Path(), err)
+		},
 	}
+
+	s.pool.New = func() any {
+		return &ctx{server: s}
+	}
+
+	return s
 }
 
 // Get registers your function to be called when the given GET path has been requested.
-func (server *Server) Get(path string, handler Handler) {
+func (s *server) Get(path string, handler Handler) {
-	server.Router.Add(http.MethodGet, path, handler)
+	s.Router().Add(http.MethodGet, path, handler)
 }
 
 // Post registers your function to be called when the given POST path has been requested.
-func (server *Server) Post(path string, handler Handler) {
+func (s *server) Post(path string, handler Handler) {
-	server.Router.Add(http.MethodPost, path, handler)
+	s.Router().Add(http.MethodPost, path, handler)
 }
 
 // Delete registers your function to be called when the given DELETE path has been requested.
-func (server *Server) Delete(path string, handler Handler) {
+func (s *server) Delete(path string, handler Handler) {
-	server.Router.Add(http.MethodDelete, path, handler)
+	s.Router().Add(http.MethodDelete, path, handler)
 }
 
 // Put registers your function to be called when the given PUT path has been requested.
-func (server *Server) Put(path string, handler Handler) {
+func (s *server) Put(path string, handler Handler) {
-	server.Router.Add(http.MethodPut, path, handler)
+	s.Router().Add(http.MethodPut, path, handler)
 }
 
 // ServeHTTP responds to the given request.
-func (server *Server) ServeHTTP(response http.ResponseWriter, request *http.Request) {
+func (s *server) ServeHTTP(response http.ResponseWriter, request *http.Request) {
-	ctx := contextPool.Get().(*ctx)
+	ctx := s.pool.Get().(*ctx)
 	ctx.request = request
 	ctx.response = response
-	ctx.server = server
+	err := s.handlers[0](ctx)
-	err := server.handlers[0](ctx)
 
 	if err != nil {
-		response.(io.StringWriter).WriteString(err.Error())
+		s.errorHandler(ctx, err)
-		log.Println(request.URL, err)
 	}
 
 	ctx.paramCount = 0
 	ctx.handlerCount = 0
-	contextPool.Put(ctx)
+	s.pool.Put(ctx)
 }
 
 // Run starts the server on the given address.
-func (server *Server) Run(address string) error {
+func (server *server) Run(address string) error {
 	srv := &http.Server{
 		Addr:              address,
 		Handler:           server,
-		ReadTimeout:       server.Config.Timeout.Read,
+		ReadTimeout:       server.config.Timeout.Read,
-		WriteTimeout:      server.Config.Timeout.Write,
+		WriteTimeout:      server.config.Timeout.Write,
-		IdleTimeout:       server.Config.Timeout.Idle,
+		IdleTimeout:       server.config.Timeout.Idle,
-		ReadHeaderTimeout: server.Config.Timeout.ReadHeader,
+		ReadHeaderTimeout: server.config.Timeout.ReadHeader,
 	}
 
 	listener, err := net.Listen("tcp", address)
@@ -100,15 +122,20 @@ func (server *Server) Run(address string) error {
 	signal.Notify(stop, os.Interrupt, syscall.SIGTERM)
 	<-stop
 
-	ctx, cancel := context.WithTimeout(context.Background(), server.Config.Timeout.Shutdown)
+	ctx, cancel := context.WithTimeout(context.Background(), server.config.Timeout.Shutdown)
 	defer cancel()
 
 	return srv.Shutdown(ctx)
 }
 
-// Use adds handlers to your handlers chain.
+// Router returns the router used by the server.
-func (server *Server) Use(handlers ...Handler) {
+func (s *server) Router() *router.Router[Handler] {
-	last := server.handlers[len(server.handlers)-1]
+	return &s.router
-	server.handlers = append(server.handlers[:len(server.handlers)-1], handlers...)
+}
-	server.handlers = append(server.handlers, last)
+
+// Use adds handlers to your handlers chain.
+func (s *server) Use(handlers ...Handler) {
+	last := s.handlers[len(s.handlers)-1]
+	s.handlers = append(s.handlers[:len(s.handlers)-1], handlers...)
+	s.handlers = append(s.handlers, last)
 }

Server_test.go

@@ -27,6 +27,11 @@ func TestRouter(t *testing.T) {
 	})
 
 	s.Get("/write", func(ctx server.Context) error {
+		_, err := ctx.Write([]byte("Hello"))
+		return err
+	})
+
+	s.Get("/writestring", func(ctx server.Context) error {
 		_, err := io.WriteString(ctx, "Hello")
 		return err
 	})
@@ -72,6 +77,10 @@ func TestRouter(t *testing.T) {
 		return ctx.String(missing)
 	})
 
+	s.Get("/scheme", func(ctx server.Context) error {
+		return ctx.String(ctx.Scheme())
+	})
+
 	s.Post("/", func(ctx server.Context) error {
 		return ctx.String("Post")
 	})
@@ -99,7 +108,9 @@ func TestRouter(t *testing.T) {
 		{Method: "GET", URL: "/response/header", Status: http.StatusOK, Body: "text/plain"},
 		{Method: "GET", URL: "/reader", Status: http.StatusOK, Body: "Hello"},
 		{Method: "GET", URL: "/string", Status: http.StatusOK, Body: "Hello"},
+		{Method: "GET", URL: "/scheme", Status: http.StatusOK, Body: "http"},
 		{Method: "GET", URL: "/write", Status: http.StatusOK, Body: "Hello"},
+		{Method: "GET", URL: "/writestring", Status: http.StatusOK, Body: "Hello"},
 		{Method: "GET", URL: "/blog/testing-my-router", Status: http.StatusOK, Body: "testing-my-router"},
 		{Method: "GET", URL: "/missing-parameter", Status: http.StatusOK, Body: ""},
 		{Method: "POST", URL: "/", Status: http.StatusOK, Body: "Post"},
@@ -109,7 +120,7 @@ func TestRouter(t *testing.T) {
 
 	for _, test := range tests {
 		t.Run("example.com"+test.URL, func(t *testing.T) {
-			request := httptest.NewRequest(test.Method, test.URL, nil)
+			request := httptest.NewRequest(test.Method, "http://example.com"+test.URL, nil)
 			response := httptest.NewRecorder()
 			s.ServeHTTP(response, request)
 
@@ -141,7 +152,7 @@ func TestMiddleware(t *testing.T) {
 func TestPanic(t *testing.T) {
 	s := server.New()
 
-	s.Router.Add(http.MethodGet, "/panic", func(ctx server.Context) error {
+	s.Router().Add(http.MethodGet, "/panic", func(ctx server.Context) error {
 		panic("Something unbelievable happened")
 	})
 

pool.go

@@ -1,9 +0,0 @@
-package server
-
-import "sync"
-
-var contextPool = sync.Pool{
-	New: func() any {
-		return &ctx{}
-	},
-}