Update to gobook@5e58e0a92b96bee61856a8ce6e75ed849bd504af

ch1/server1/main.go

@@ -18,7 +18,7 @@ func main() {
 	log.Fatal(http.ListenAndServe("localhost:8000", nil))
 }
 
-// handler echoes the Path component of the request URL r.
+// handler echoes the Path component of the requested URL.
 func handler(w http.ResponseWriter, r *http.Request) {
 	fmt.Fprintf(w, "URL.Path = %q\n", r.URL.Path)
 }

ch1/server3/main.go

@@ -2,24 +2,18 @@
 // License: https://creativecommons.org/licenses/by-nc-sa/4.0/
 
 // See page 21.
-//!+
 
-// Server3 is a minimal "echo" and counter server.
+// Server3 is an "echo" server that displays request parameters.
 package main
 
 import (
 	"fmt"
 	"log"
 	"net/http"
-	"sync"
 )
 
-var mu sync.Mutex
-var count int
-
 func main() {
 	http.HandleFunc("/", handler)
-	http.HandleFunc("/count", counter)
 	log.Fatal(http.ListenAndServe("localhost:8000", nil))
 }
 
@@ -41,12 +35,3 @@ func handler(w http.ResponseWriter, r *http.Request) {
 }
 
 //!-handler
-
-// counter echoes the number of calls so far.
-func counter(w http.ResponseWriter, r *http.Request) {
-	mu.Lock()
-	fmt.Fprintf(w, "Count %d", count)
-	mu.Unlock()
-}
-
-//!-