works for r=1 w=1

client/cli.go

@@ -0,0 +1,58 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"log"
+	"os"
+	"strings"
+)
+
+func main() {
+	client, err := New(strings.Split(os.Getenv("ADDR"), ",")...)
+	if err != nil {
+		panic(err)
+	}
+	reader := bufio.NewReader(os.Stdin)
+	for {
+		fmt.Print("> ")
+		line, err := reader.ReadString('\n')
+		if err != nil {
+			panic(err)
+		}
+		do(client, strings.TrimSpace(line))
+	}
+}
+
+func do(client *Client, line string) {
+	defer func() {
+		if err := recover(); err != nil {
+			log.Printf("err: %v", err)
+		}
+	}()
+	switch strings.ToLower(strings.Split(line, " ")[0]) {
+	case "get":
+		get(client, line)
+	case "set":
+		set(client, line)
+	case "put":
+		set(client, line)
+	default:
+		log.Printf("unknown command %v", line)
+	}
+}
+
+func get(client *Client, line string) {
+	words := strings.Split(line, " ")
+	key := words[1]
+	v, err := client.Get(key)
+	log.Printf("set: %v: %s", err, v)
+}
+
+func set(client *Client, line string) {
+	words := strings.Split(line, " ")
+	key := words[1]
+	value := strings.Join(words[2:], " ")
+	err := client.Set(key, []byte(value))
+	log.Printf("set: %v", err)
+}

client/client.go

@@ -1,4 +1,4 @@
-package client
+package main
 
 import (
 	"bytes"
@@ -65,7 +65,7 @@ func (c *Client) Get(key string) ([]byte, error) {
 	}
 	defer resp.Body.Close()
 	if resp.StatusCode == http.StatusNotFound {
-		return nil, nil
+		return nil, errors.New("not found")
 	}
 	if resp.StatusCode != http.StatusOK {
 		return nil, errors.New("bad status on get")

client/client_test.go

@@ -1,4 +1,4 @@
-package client
+package main
 
 import (
 	"fmt"