1 files changed, 195 insertions, 0 deletions
diff --git a/src/net/http/example_test.go b/src/net/http/example_test.go
new file mode 100644
index 0000000..2f411d1
--- /dev/null
+++ b/src/net/http/example_test.go
@@ -0,0 +1,195 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package http_test
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"log"
+	"net/http"
+	"os"
+	"os/signal"
+)
+
+func ExampleHijacker() {
+	http.HandleFunc("/hijack", func(w http.ResponseWriter, r *http.Request) {
+		hj, ok := w.(http.Hijacker)
+		if !ok {
+			http.Error(w, "webserver doesn't support hijacking", http.StatusInternalServerError)
+			return
+		}
+		conn, bufrw, err := hj.Hijack()
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		// Don't forget to close the connection:
+		defer conn.Close()
+		bufrw.WriteString("Now we're speaking raw TCP. Say hi: ")
+		bufrw.Flush()
+		s, err := bufrw.ReadString('\n')
+		if err != nil {
+			log.Printf("error reading string: %v", err)
+			return
+		}
+		fmt.Fprintf(bufrw, "You said: %q\nBye.\n", s)
+		bufrw.Flush()
+	})
+}
+
+func ExampleGet() {
+	res, err := http.Get("http://www.google.com/robots.txt")
+	if err != nil {
+		log.Fatal(err)
+	}
+	body, err := io.ReadAll(res.Body)
+	res.Body.Close()
+	if res.StatusCode > 299 {
+		log.Fatalf("Response failed with status code: %d and\nbody: %s\n", res.StatusCode, body)
+	}
+	if err != nil {
+		log.Fatal(err)
+	}
+	fmt.Printf("%s", body)
+}
+
+func ExampleFileServer() {
+	// Simple static webserver:
+	log.Fatal(http.ListenAndServe(":8080", http.FileServer(http.Dir("/usr/share/doc"))))
+}
+
+func ExampleFileServer_stripPrefix() {
+	// To serve a directory on disk (/tmp) under an alternate URL
+	// path (/tmpfiles/), use StripPrefix to modify the request
+	// URL's path before the FileServer sees it:
+	http.Handle("/tmpfiles/", http.StripPrefix("/tmpfiles/", http.FileServer(http.Dir("/tmp"))))
+}
+
+func ExampleStripPrefix() {
+	// To serve a directory on disk (/tmp) under an alternate URL
+	// path (/tmpfiles/), use StripPrefix to modify the request
+	// URL's path before the FileServer sees it:
+	http.Handle("/tmpfiles/", http.StripPrefix("/tmpfiles/", http.FileServer(http.Dir("/tmp"))))
+}
+
+type apiHandler struct{}
+
+func (apiHandler) ServeHTTP(http.ResponseWriter, *http.Request) {}
+
+func ExampleServeMux_Handle() {
+	mux := http.NewServeMux()
+	mux.Handle("/api/", apiHandler{})
+	mux.HandleFunc("/", func(w http.ResponseWriter, req *http.Request) {
+		// The "/" pattern matches everything, so we need to check
+		// that we're at the root here.
+		if req.URL.Path != "/" {
+			http.NotFound(w, req)
+			return
+		}
+		fmt.Fprintf(w, "Welcome to the home page!")
+	})
+}
+
+// HTTP Trailers are a set of key/value pairs like headers that come
+// after the HTTP response, instead of before.
+func ExampleResponseWriter_trailers() {
+	mux := http.NewServeMux()
+	mux.HandleFunc("/sendstrailers", func(w http.ResponseWriter, req *http.Request) {
+		// Before any call to WriteHeader or Write, declare
+		// the trailers you will set during the HTTP
+		// response. These three headers are actually sent in
+		// the trailer.
+		w.Header().Set("Trailer", "AtEnd1, AtEnd2")
+		w.Header().Add("Trailer", "AtEnd3")
+
+		w.Header().Set("Content-Type", "text/plain; charset=utf-8") // normal header
+		w.WriteHeader(http.StatusOK)
+
+		w.Header().Set("AtEnd1", "value 1")
+		io.WriteString(w, "This HTTP response has both headers before this text and trailers at the end.\n")
+		w.Header().Set("AtEnd2", "value 2")
+		w.Header().Set("AtEnd3", "value 3") // These will appear as trailers.
+	})
+}
+
+func ExampleServer_Shutdown() {
+	var srv http.Server
+
+	idleConnsClosed := make(chan struct{})
+	go func() {
+		sigint := make(chan os.Signal, 1)
+		signal.Notify(sigint, os.Interrupt)
+		<-sigint
+
+		// We received an interrupt signal, shut down.
+		if err := srv.Shutdown(context.Background()); err != nil {
+			// Error from closing listeners, or context timeout:
+			log.Printf("HTTP server Shutdown: %v", err)
+		}
+		close(idleConnsClosed)
+	}()
+
+	if err := srv.ListenAndServe(); err != http.ErrServerClosed {
+		// Error starting or closing listener:
+		log.Fatalf("HTTP server ListenAndServe: %v", err)
+	}
+
+	<-idleConnsClosed
+}
+
+func ExampleListenAndServeTLS() {
+	http.HandleFunc("/", func(w http.ResponseWriter, req *http.Request) {
+		io.WriteString(w, "Hello, TLS!\n")
+	})
+
+	// One can use generate_cert.go in crypto/tls to generate cert.pem and key.pem.
+	log.Printf("About to listen on 8443. Go to https://127.0.0.1:8443/")
+	err := http.ListenAndServeTLS(":8443", "cert.pem", "key.pem", nil)
+	log.Fatal(err)
+}
+
+func ExampleListenAndServe() {
+	// Hello world, the web server
+
+	helloHandler := func(w http.ResponseWriter, req *http.Request) {
+		io.WriteString(w, "Hello, world!\n")
+	}
+
+	http.HandleFunc("/hello", helloHandler)
+	log.Fatal(http.ListenAndServe(":8080", nil))
+}
+
+func ExampleHandleFunc() {
+	h1 := func(w http.ResponseWriter, _ *http.Request) {
+		io.WriteString(w, "Hello from a HandleFunc #1!\n")
+	}
+	h2 := func(w http.ResponseWriter, _ *http.Request) {
+		io.WriteString(w, "Hello from a HandleFunc #2!\n")
+	}
+
+	http.HandleFunc("/", h1)
+	http.HandleFunc("/endpoint", h2)
+
+	log.Fatal(http.ListenAndServe(":8080", nil))
+}
+
+func newPeopleHandler() http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		fmt.Fprintln(w, "This is the people handler.")
+	})
+}
+
+func ExampleNotFoundHandler() {
+	mux := http.NewServeMux()
+
+	// Create sample handler to returns 404
+	mux.Handle("/resources", http.NotFoundHandler())
+
+	// Create sample handler that returns 200
+	mux.Handle("/resources/people/", newPeopleHandler())
+
+	log.Fatal(http.ListenAndServe(":8080", mux))
+}