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// Copyright 2018 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 (
"fmt"
"log"
"net/http"
"sync"
)
type countHandler struct {
mu sync.Mutex // guards n
n int
}
func (h *countHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
h.mu.Lock()
defer h.mu.Unlock()
h.n++
fmt.Fprintf(w, "count is %d\n", h.n)
}
func ExampleHandle() {
http.Handle("/count", new(countHandler))
log.Fatal(http.ListenAndServe(":8080", nil))
}
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