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()
})
}
// exec a program, redirecting output
func DateServer(rw http.ResponseWriter, req *http.Request) {
rw.Header().Set("Content-Type", "text/plain; charset=utf-8")
date, err := exec.Command("/bin/date").Output()
if err != nil {
http.Error(rw, err.Error(), 500)
return
}
rw.Write(date)
}
func ExampleResponseRecorder() {
handler := func(w http.ResponseWriter, r *http.Request) {
http.Error(w, "something failed", http.StatusInternalServerError)
}
req, err := http.NewRequest("GET", "http://example.com/foo", nil)
if err != nil {
log.Fatal(err)
}
w := httptest.NewRecorder()
handler(w, req)
fmt.Printf("%d - %s", w.Code, w.Body.String())
// Output: 500 - something failed
}
func Logger(w http.ResponseWriter, req *http.Request) {
log.Print(req.URL)
http.Error(w, "oops", 404)
}