diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..dbf4200
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+database.db
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..5f26036
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,3 @@
+default:
+	go run main.go
+	
\ No newline at end of file
diff --git a/README.md b/README.md
index 7ec9f3e..bc00e05 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,15 @@
 # Step up Go for students 2-1
 
 see: http://bit.ly/devlopwithgo
+
+## Structure
+```
+├── pkg:
+│   ├── application: サービスロジック
+│   ├── di: 依存性の注入
+│   ├── infra: 外部との通信(API)
+│   └── server
+│       ├── handler: ハンドラ
+│       └── server.go: ルーティング
+└── main.go: 
+```
diff --git a/main.go b/main.go
index 34194b1..36b417f 100644
--- a/main.go
+++ b/main.go
@@ -10,229 +10,10 @@ TODO
 */
 
 import (
-	"database/sql"
-	"encoding/json"
-	"fmt"
-	"net"
-	"net/http"
-	"os"
-	"strconv"
-
 	_ "github.com/mattn/go-sqlite3"
+	"github.com/stepupgo/stepupgo2-1/pkg/server"
 )
 
 func main() {
-
-	db, err := sql.Open("sqlite3", "database.db")
-	if err != nil {
-		panic(err)
-	}
-
-	if err := initDB(db); err != nil {
-		panic(err)
-	}
-
-	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
-		resp, err := http.Get("https://lottery-dot-tenntenn-samples.appspot.com/available_lotteries")
-		if err != nil {
-			const status = http.StatusInternalServerError
-			http.Error(w, http.StatusText(status), status)
-			return
-		}
-		defer resp.Body.Close()
-
-		var lotteries []*Lottery
-		if err := json.NewDecoder(resp.Body).Decode(&lotteries); err != nil {
-			const status = http.StatusInternalServerError
-			http.Error(w, http.StatusText(status), status)
-			return
-		}
-
-		if err := listTmpl.Execute(w, lotteries); err != nil {
-			const status = http.StatusInternalServerError
-			http.Error(w, http.StatusText(status), status)
-			return
-		}
-	})
-
-	http.HandleFunc("/purchase_page", func(w http.ResponseWriter, r *http.Request) {
-		resp, err := http.Get("https://lottery-dot-tenntenn-samples.appspot.com/lottery?id=" + r.FormValue("id"))
-		if err != nil {
-			const status = http.StatusInternalServerError
-			http.Error(w, http.StatusText(status), status)
-			return
-		}
-		defer resp.Body.Close()
-
-		var l Lottery
-		if err := json.NewDecoder(resp.Body).Decode(&l); err != nil {
-			const status = http.StatusInternalServerError
-			http.Error(w, http.StatusText(status), status)
-			return
-		}
-
-		data := struct {
-			Lottery
-			Remain int64
-		}{
-			Lottery: l,
-			Remain:  l.Num, // TODO: 残りを計算する
-		}
-		if err := purchasePageTmpl.Execute(w, data); err != nil {
-			const status = http.StatusInternalServerError
-			http.Error(w, http.StatusText(status), status)
-			return
-		}
-	})
-
-	http.HandleFunc("/purchase", func(w http.ResponseWriter, r *http.Request) {
-		id := r.FormValue("id")
-		num, err := strconv.Atoi(r.FormValue("num"))
-		if err != nil {
-			const status = http.StatusInternalServerError
-			http.Error(w, http.StatusText(status), status)
-			return
-		}
-		// TODO: パラメタのバリデーション
-
-		resp, err := http.Get("https://lottery-dot-tenntenn-samples.appspot.com/lottery?id=" + id)
-		if err != nil {
-			const status = http.StatusInternalServerError
-			http.Error(w, http.StatusText(status), status)
-			return
-		}
-		defer resp.Body.Close()
-
-		var l Lottery
-		if err := json.NewDecoder(resp.Body).Decode(&l); err != nil {
-			const status = http.StatusInternalServerError
-			http.Error(w, http.StatusText(status), status)
-			return
-		}
-
-		var count int
-		if err := db.QueryRow("SELECT COUNT(*) FROM purchased WHERE lottery_id = ?", l.ID).Scan(&count); err != nil {
-			const status = http.StatusInternalServerError
-			http.Error(w, http.StatusText(status), status)
-			return
-		}
-
-		for i := 1; i <= num; i++ {
-			const sql = "INSERT INTO purchased(lottery_id, number) values (?,?)"
-			format := fmt.Sprintf(`%%0%dd`, len(strconv.FormatInt(l.Num-1, 10)))
-			n := fmt.Sprintf(format, count+i)
-			if _, err := db.Exec(sql, id, n); err != nil {
-				const status = http.StatusInternalServerError
-				http.Error(w, http.StatusText(status), status)
-				return
-			}
-		}
-
-		http.Redirect(w, r, "/purchase_page?id="+l.ID, http.StatusFound)
-	})
-
-	http.HandleFunc("/result", func(w http.ResponseWriter, r *http.Request) {
-		resp1, err := http.Get("https://lottery-dot-tenntenn-samples.appspot.com/result?id=" + r.FormValue("id"))
-		if err != nil {
-			const status = http.StatusInternalServerError
-			http.Error(w, http.StatusText(status), status)
-			return
-		}
-		defer resp1.Body.Close()
-
-		var result Result
-		if err := json.NewDecoder(resp1.Body).Decode(&result); err != nil {
-			const status = http.StatusInternalServerError
-			http.Error(w, http.StatusText(status), status)
-			return
-		}
-
-		resp2, err := http.Get("https://lottery-dot-tenntenn-samples.appspot.com/lottery?id=" + r.FormValue("id"))
-		if err != nil {
-			const status = http.StatusInternalServerError
-			http.Error(w, http.StatusText(status), status)
-			return
-		}
-		defer resp2.Body.Close()
-
-		var l Lottery
-		if err := json.NewDecoder(resp2.Body).Decode(&l); err != nil {
-			const status = http.StatusInternalServerError
-			http.Error(w, http.StatusText(status), status)
-			return
-		}
-
-		type winner struct {
-			Prize   *Prize
-			Numbers []string
-		}
-
-		data := struct {
-			Lottery
-			Winners map[string]*winner
-		}{
-			Lottery: l,
-			Winners: map[string]*winner{},
-		}
-
-		rows, err := db.Query("SELECT number FROM purchased WHERE lottery_id = ?", l.ID)
-		if err != nil {
-			const status = http.StatusInternalServerError
-			http.Error(w, http.StatusText(status), status)
-			return
-		}
-		for rows.Next() {
-			var number string
-			if err := rows.Scan(&number); err != nil {
-				const status = http.StatusInternalServerError
-				http.Error(w, http.StatusText(status), status)
-				return
-			}
-
-			for i := range result.Winners {
-				for _, n := range result.Winners[i].Numbers {
-					if number == n {
-						prizeID := result.Winners[i].PrizeID
-						if data.Winners[prizeID] == nil {
-							for _, p := range l.Prizes {
-								if p.ID == prizeID {
-									data.Winners[prizeID] = &winner{
-										Prize: p,
-									}
-								}
-							}
-						}
-						data.Winners[prizeID].Numbers = append(data.Winners[prizeID].Numbers, n)
-					}
-				}
-			}
-		}
-
-		if err := resultTmpl.Execute(w, data); err != nil {
-			const status = http.StatusInternalServerError
-			http.Error(w, http.StatusText(status), status)
-			return
-		}
-	})
-
-	port := os.Getenv("PORT")
-	if port == "" {
-		port = "8080"
-	}
-	addr := net.JoinHostPort("", port)
-	http.ListenAndServe(addr, nil)
-}
-
-func initDB(db *sql.DB) error {
-	const sql = `
-CREATE TABLE IF NOT EXISTS purchased (
-	lottery_id  TEXT NOT NULL,
-	number 		TEXT NOT NULL,
-	PRIMARY KEY(lottery_id, number)
-);
-`
-	if _, err := db.Exec(sql); err != nil {
-		return err
-	}
-	return nil
+	server.Run()
 }
diff --git a/pkg/application/top.go b/pkg/application/top.go
new file mode 100644
index 0000000..daf489c
--- /dev/null
+++ b/pkg/application/top.go
@@ -0,0 +1,24 @@
+package application
+
+import (
+	"net/http"
+
+	"github.com/stepupgo/stepupgo2-1/pkg/infra/api"
+)
+
+type top struct {
+	api api.ITop
+}
+
+type ATop interface {
+	GetAvailable() (*http.Response, error)
+}
+
+func NewTopApp(t api.ITop) ATop {
+	return &top{t}
+}
+
+func (t *top) GetAvailable() (*http.Response, error) {
+	resp, err := t.api.GetAvailableLotteries()
+	return resp, err
+}
diff --git a/pkg/db/db.go b/pkg/db/db.go
new file mode 100644
index 0000000..ed88dd4
--- /dev/null
+++ b/pkg/db/db.go
@@ -0,0 +1,43 @@
+package db
+
+import (
+	"database/sql"
+	"log"
+)
+
+var (
+	DB *sql.DB
+)
+
+func createTableSQL() string {
+	const sql = `
+		CREATE TABLE IF NOT EXISTS purchased (
+		lottery_id  TEXT NOT NULL,
+		number 		TEXT NOT NULL,
+		PRIMARY KEY(lottery_id, number)
+	);
+	`
+
+	return sql
+}
+
+func initDB() error {
+	sql := createTableSQL()
+	if _, err := DB.Exec(sql); err != nil {
+		return err
+	}
+	return nil
+}
+
+func Init() {
+	db, err := sql.Open("sqlite3", "database.db")
+	if err != nil {
+		log.Println(err)
+	}
+
+	DB = db
+
+	if err := initDB(); err != nil {
+		log.Println(err)
+	}
+}
diff --git a/pkg/di/di.go b/pkg/di/di.go
new file mode 100644
index 0000000..6d39d3b
--- /dev/null
+++ b/pkg/di/di.go
@@ -0,0 +1,19 @@
+package di
+
+import (
+	app "github.com/stepupgo/stepupgo2-1/pkg/application"
+	"github.com/stepupgo/stepupgo2-1/pkg/infra/api"
+)
+
+var (
+	Top app.ATop
+)
+
+func Init() {
+	initTop()
+}
+
+func initTop() {
+	t := api.NewITop()
+	Top = app.NewTopApp(t)
+}
diff --git a/pkg/infra/api/top.go b/pkg/infra/api/top.go
new file mode 100644
index 0000000..06d69d4
--- /dev/null
+++ b/pkg/infra/api/top.go
@@ -0,0 +1,18 @@
+package api
+
+import "net/http"
+
+type top struct{}
+
+type ITop interface {
+	GetAvailableLotteries() (*http.Response, error)
+}
+
+func NewITop() ITop {
+	return &top{}
+}
+
+func (t *top) GetAvailableLotteries() (*http.Response, error) {
+	resp, err := http.Get("https://lottery-dot-tenntenn-samples.appspot.com/available_lotteries")
+	return resp, err
+}
diff --git a/pkg/server/handler/purchase.go b/pkg/server/handler/purchase.go
new file mode 100644
index 0000000..e7004e8
--- /dev/null
+++ b/pkg/server/handler/purchase.go
@@ -0,0 +1,92 @@
+package handler
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"strconv"
+
+	"github.com/stepupgo/stepupgo2-1/pkg/db"
+	"github.com/stepupgo/stepupgo2-1/pkg/server/model"
+	"github.com/stepupgo/stepupgo2-1/pkg/view"
+)
+
+func PurchasePage() http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		resp, err := http.Get("https://lottery-dot-tenntenn-samples.appspot.com/lottery?id=" + r.FormValue("id"))
+		if err != nil {
+			const status = http.StatusInternalServerError
+			http.Error(w, http.StatusText(status), status)
+			return
+		}
+		defer resp.Body.Close()
+
+		var l model.Lottery
+		if err := json.NewDecoder(resp.Body).Decode(&l); err != nil {
+			const status = http.StatusInternalServerError
+			http.Error(w, http.StatusText(status), status)
+			return
+		}
+
+		data := struct {
+			model.Lottery
+			Remain int64
+		}{
+			Lottery: l,
+			Remain:  l.Num, // TODO: 残りを計算する
+		}
+		if err := view.PurchasePageTmpl.Execute(w, data); err != nil {
+			const status = http.StatusInternalServerError
+			http.Error(w, http.StatusText(status), status)
+			return
+		}
+	}
+}
+
+func Purchase() http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		id := r.FormValue("id")
+		num, err := strconv.Atoi(r.FormValue("num"))
+		if err != nil {
+			const status = http.StatusInternalServerError
+			http.Error(w, http.StatusText(status), status)
+			return
+		}
+		// TODO: パラメタのバリデーション
+
+		resp, err := http.Get("https://lottery-dot-tenntenn-samples.appspot.com/lottery?id=" + id)
+		if err != nil {
+			const status = http.StatusInternalServerError
+			http.Error(w, http.StatusText(status), status)
+			return
+		}
+		defer resp.Body.Close()
+
+		var l model.Lottery
+		if err := json.NewDecoder(resp.Body).Decode(&l); err != nil {
+			const status = http.StatusInternalServerError
+			http.Error(w, http.StatusText(status), status)
+			return
+		}
+
+		var count int
+		if err := db.DB.QueryRow("SELECT COUNT(*) FROM purchased WHERE lottery_id = ?", l.ID).Scan(&count); err != nil {
+			const status = http.StatusInternalServerError
+			http.Error(w, http.StatusText(status), status)
+			return
+		}
+
+		for i := 1; i <= num; i++ {
+			const sql = "INSERT INTO purchased(lottery_id, number) values (?,?)"
+			format := fmt.Sprintf(`%%0%dd`, len(strconv.FormatInt(l.Num-1, 10)))
+			n := fmt.Sprintf(format, count+i)
+			if _, err := db.DB.Exec(sql, id, n); err != nil {
+				const status = http.StatusInternalServerError
+				http.Error(w, http.StatusText(status), status)
+				return
+			}
+		}
+
+		http.Redirect(w, r, "/purchase_page?id="+l.ID, http.StatusFound)
+	}
+}
diff --git a/pkg/server/handler/result.go b/pkg/server/handler/result.go
new file mode 100644
index 0000000..69b13b8
--- /dev/null
+++ b/pkg/server/handler/result.go
@@ -0,0 +1,96 @@
+package handler
+
+import (
+	"encoding/json"
+	"net/http"
+
+	"github.com/stepupgo/stepupgo2-1/pkg/db"
+	"github.com/stepupgo/stepupgo2-1/pkg/server/model"
+	"github.com/stepupgo/stepupgo2-1/pkg/view"
+)
+
+func Result() http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		resp1, err := http.Get("https://lottery-dot-tenntenn-samples.appspot.com/result?id=" + r.FormValue("id"))
+		if err != nil {
+			const status = http.StatusInternalServerError
+			http.Error(w, http.StatusText(status), status)
+			return
+		}
+		defer resp1.Body.Close()
+
+		var result model.Result
+		if err := json.NewDecoder(resp1.Body).Decode(&result); err != nil {
+			const status = http.StatusInternalServerError
+			http.Error(w, http.StatusText(status), status)
+			return
+		}
+
+		resp2, err := http.Get("https://lottery-dot-tenntenn-samples.appspot.com/lottery?id=" + r.FormValue("id"))
+		if err != nil {
+			const status = http.StatusInternalServerError
+			http.Error(w, http.StatusText(status), status)
+			return
+		}
+		defer resp2.Body.Close()
+
+		var l model.Lottery
+		if err := json.NewDecoder(resp2.Body).Decode(&l); err != nil {
+			const status = http.StatusInternalServerError
+			http.Error(w, http.StatusText(status), status)
+			return
+		}
+
+		type winner struct {
+			Prize   *model.Prize
+			Numbers []string
+		}
+
+		data := struct {
+			model.Lottery
+			Winners map[string]*winner
+		}{
+			Lottery: l,
+			Winners: map[string]*winner{},
+		}
+
+		rows, err := db.DB.Query("SELECT number FROM purchased WHERE lottery_id = ?", l.ID)
+		if err != nil {
+			const status = http.StatusInternalServerError
+			http.Error(w, http.StatusText(status), status)
+			return
+		}
+		for rows.Next() {
+			var number string
+			if err := rows.Scan(&number); err != nil {
+				const status = http.StatusInternalServerError
+				http.Error(w, http.StatusText(status), status)
+				return
+			}
+
+			for i := range result.Winners {
+				for _, n := range result.Winners[i].Numbers {
+					if number == n {
+						prizeID := result.Winners[i].PrizeID
+						if data.Winners[prizeID] == nil {
+							for _, p := range l.Prizes {
+								if p.ID == prizeID {
+									data.Winners[prizeID] = &winner{
+										Prize: p,
+									}
+								}
+							}
+						}
+						data.Winners[prizeID].Numbers = append(data.Winners[prizeID].Numbers, n)
+					}
+				}
+			}
+		}
+
+		if err := view.ResultTmpl.Execute(w, data); err != nil {
+			const status = http.StatusInternalServerError
+			http.Error(w, http.StatusText(status), status)
+			return
+		}
+	}
+}
diff --git a/pkg/server/handler/top.go b/pkg/server/handler/top.go
new file mode 100644
index 0000000..624efb5
--- /dev/null
+++ b/pkg/server/handler/top.go
@@ -0,0 +1,35 @@
+package handler
+
+import (
+	"encoding/json"
+	"net/http"
+
+	"github.com/stepupgo/stepupgo2-1/pkg/di"
+	"github.com/stepupgo/stepupgo2-1/pkg/server/model"
+	"github.com/stepupgo/stepupgo2-1/pkg/view"
+)
+
+func TopPage() http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		resp, err := di.Top.GetAvailable()
+		if err != nil {
+			const status = http.StatusInternalServerError
+			http.Error(w, http.StatusText(status), status)
+			return
+		}
+		defer resp.Body.Close()
+
+		var lotteries []*model.Lottery
+		if err := json.NewDecoder(resp.Body).Decode(&lotteries); err != nil {
+			const status = http.StatusInternalServerError
+			http.Error(w, http.StatusText(status), status)
+			return
+		}
+
+		if err := view.ListTmpl.Execute(w, lotteries); err != nil {
+			const status = http.StatusInternalServerError
+			http.Error(w, http.StatusText(status), status)
+			return
+		}
+	}
+}
diff --git a/pkg/server/model/definition.go b/pkg/server/model/definition.go
new file mode 100644
index 0000000..68c24ab
--- /dev/null
+++ b/pkg/server/model/definition.go
@@ -0,0 +1,9 @@
+package model
+
+type DrawStatus int64
+
+const (
+	DrawStatusNotDrawn DrawStatus = 0
+	DrawStatusMidDrawn DrawStatus = 1
+	DrawStatusDrawn    DrawStatus = 2
+)
diff --git a/pkg/server/model/lottery.go b/pkg/server/model/lottery.go
new file mode 100644
index 0000000..373e0e1
--- /dev/null
+++ b/pkg/server/model/lottery.go
@@ -0,0 +1,13 @@
+package model
+
+import "time"
+
+type Lottery struct {
+	ID      string    `json:"id"`
+	Name    string    `json:"name"`
+	Price   int64     `json:"price"`
+	Num     int64     `json:"num"`
+	Prizes  []*Prize  `json:"prizes"`
+	StartAt time.Time `json:"start_at"`
+	DrawAt  time.Time `json:"draw_at"`
+}
diff --git a/pkg/server/model/prize.go b/pkg/server/model/prize.go
new file mode 100644
index 0000000..b2a038b
--- /dev/null
+++ b/pkg/server/model/prize.go
@@ -0,0 +1,8 @@
+package model
+
+type Prize struct {
+	ID     string `json:"id"`
+	Name   string `json:"name`
+	Num    int64  `json:"num"`
+	Amount int64  `json:"amount"`
+}
diff --git a/pkg/server/model/result.go b/pkg/server/model/result.go
new file mode 100644
index 0000000..12f84ac
--- /dev/null
+++ b/pkg/server/model/result.go
@@ -0,0 +1,6 @@
+package model
+
+type Result struct {
+	Status  DrawStatus `json:"status"`
+	Winners []*Winner  `json:"winners"`
+}
diff --git a/pkg/server/model/types.go b/pkg/server/model/types.go
new file mode 100644
index 0000000..8b53790
--- /dev/null
+++ b/pkg/server/model/types.go
@@ -0,0 +1 @@
+package model
diff --git a/pkg/server/model/winner.go b/pkg/server/model/winner.go
new file mode 100644
index 0000000..4a73431
--- /dev/null
+++ b/pkg/server/model/winner.go
@@ -0,0 +1,6 @@
+package model
+
+type Winner struct {
+	PrizeID string   `json:"prize_id"`
+	Numbers []string `json:"numbers"`
+}
diff --git a/pkg/server/server.go b/pkg/server/server.go
new file mode 100644
index 0000000..564b14a
--- /dev/null
+++ b/pkg/server/server.go
@@ -0,0 +1,37 @@
+package server
+
+import (
+	"net"
+	"net/http"
+	"os"
+
+	"github.com/stepupgo/stepupgo2-1/pkg/db"
+	"github.com/stepupgo/stepupgo2-1/pkg/di"
+	"github.com/stepupgo/stepupgo2-1/pkg/server/handler"
+)
+
+func routing() {
+	http.HandleFunc("/", handler.TopPage())
+	http.HandleFunc("/purchase_page", handler.PurchasePage())
+	http.HandleFunc("/purchase", handler.Purchase())
+	http.HandleFunc("/result", handler.Result())
+}
+
+func connection() {
+	port := os.Getenv("PORT")
+	if port == "" {
+		port = "8080"
+	}
+	addr := net.JoinHostPort("", port)
+	http.ListenAndServe(addr, nil)
+}
+
+func Run() {
+	// Initialize
+	db.Init()
+	di.Init()
+
+	// Service
+	routing()
+	connection()
+}
diff --git a/pkg/view/list.go b/pkg/view/list.go
new file mode 100644
index 0000000..5761a10
--- /dev/null
+++ b/pkg/view/list.go
@@ -0,0 +1,25 @@
+package view
+
+import "html/template"
+
+var ListTmpl = template.Must(template.New("list").Parse(
+	`
+	<!DOCTYPE html>
+	<html>
+		<head>
+			<meta charset="utf-8">
+			<title>宝くじ</title>
+		</head>
+		<body>
+			<ul>
+			{{range .}}
+				<li>{{.Name}}
+					<a href="/purchase_page?id={{.ID}}">Purchase</a>
+					<a href="/result?id={{.ID}}">Result</a>
+				</li>
+			{{end}}
+			</ul>
+		</body>
+	</html>
+	`),
+)
diff --git a/pkg/view/purchase.go b/pkg/view/purchase.go
new file mode 100644
index 0000000..fce2663
--- /dev/null
+++ b/pkg/view/purchase.go
@@ -0,0 +1,35 @@
+package view
+
+import "html/template"
+
+var PurchasePageTmpl = template.Must(template.New("purchase_page").Parse(
+	`
+	<!DOCTYPE html>
+	<html>
+		<head>
+			<meta charset="utf-8">
+			<title>Purchase {{.Name}}</title>
+		</head>
+		<body>
+			<h2>{{.Name}}</h2>
+			<h3>Prizes</h3>
+			<ul>
+			{{range .Prizes}}
+				<li>{{.Name}} ${{.Amount}}</li>
+			{{end}}
+			</ul>
+
+			{{if .Remain}}
+			<form action="/purchase" method="post">
+				<input name="id" type="hidden" value="{{.ID}}">
+				<label for="amount">Amount({{.Remain}} / {{.Num}}): </label>
+				<input name="num" type="number" min="1" max="{{.Remain}}">
+				<input type="submit" value="Purchase">
+			</form>
+			{{else}}
+				SOLD OUT
+			{{end}}
+		</body>
+	</html>
+	`),
+)
diff --git a/pkg/view/result.go b/pkg/view/result.go
new file mode 100644
index 0000000..b714183
--- /dev/null
+++ b/pkg/view/result.go
@@ -0,0 +1,31 @@
+package view
+
+import "html/template"
+
+var ResultTmpl = template.Must(template.New("result").Parse(
+	`
+	<!DOCTYPE html>
+	<html>
+		<head>
+			<meta charset="utf-8">
+			<title>Result of {{.Name}}</title>
+		</head>
+		<body>
+			{{range .Prizes}}
+				{{$winner := index $.Winners .ID}}
+				{{if $winner }}
+					<h2>{{.Name}} (${{.Amount}})</h2>
+					<ul>
+						{{range $winner.Numbers }}
+						<li>{{.}}</li>
+						{{end}}
+					</ul>
+				{{else}}
+					<h2>{{.Name}} (${{.Amount}})</h2>
+					No winners
+				{{end}}
+			{{end}}
+		</body>
+	</html>
+	`),
+)
diff --git a/pkg/view/template.go b/pkg/view/template.go
new file mode 100644
index 0000000..ef1189a
--- /dev/null
+++ b/pkg/view/template.go
@@ -0,0 +1 @@
+package view
diff --git a/template.go b/template.go
deleted file mode 100644
index e654236..0000000
--- a/template.go
+++ /dev/null
@@ -1,73 +0,0 @@
-package main
-
-import "html/template"
-
-var listTmpl = template.Must(template.New("list").Parse(`<!DOCTYPE html>
-<html>
-	<head>
-		<meta charset="utf-8">
-		<title>宝くじ</title>
-	</head>
-	<body>
-		<ul>
-		{{range .}}
-			<li>{{.Name}}
-				<a href="/purchase_page?id={{.ID}}">Purchase</a>
-				<a href="/result?id={{.ID}}">Result</a>
-			</li>
-		{{end}}
-		</ul>
-	</body>
-</html>`))
-
-var purchasePageTmpl = template.Must(template.New("purchase_page").Parse(`<!DOCTYPE html>
-<html>
-	<head>
-		<meta charset="utf-8">
-		<title>Purchase {{.Name}}</title>
-	</head>
-	<body>
-		<h2>{{.Name}}</h2>
-		<h3>Prizes</h3>
-		<ul>
-		{{range .Prizes}}
-			<li>{{.Name}} ${{.Amount}}</li>
-		{{end}}
-		</ul>
-
-		{{if .Remain}}
-		<form action="/purchase" method="post">
-			<input name="id" type="hidden" value="{{.ID}}">
-			<label for="amount">Amount({{.Remain}} / {{.Num}}): </label>
-			<input name="num" type="number" min="1" max="{{.Remain}}">
-			<input type="submit" value="Purchase">
-		</form>
-		{{else}}
-			SOLD OUT
-		{{end}}
-	</body>
-</html>`))
-
-var resultTmpl = template.Must(template.New("result").Parse(`<!DOCTYPE html>
-<html>
-	<head>
-		<meta charset="utf-8">
-		<title>Result of {{.Name}}</title>
-	</head>
-	<body>
-		{{range .Prizes}}
-			{{$winner := index $.Winners .ID}}
-			{{if $winner }}
-				<h2>{{.Name}} (${{.Amount}})</h2>
-				<ul>
-					{{range $winner.Numbers }}
-					<li>{{.}}</li>
-					{{end}}
-				</ul>
-			{{else}}
-				<h2>{{.Name}} (${{.Amount}})</h2>
-				No winners
-			{{end}}
-		{{end}}
-	</body>
-</html>`))
diff --git a/types.go b/types.go
deleted file mode 100644
index 0f88802..0000000
--- a/types.go
+++ /dev/null
@@ -1,38 +0,0 @@
-package main
-
-import "time"
-
-type Lottery struct {
-	ID      string    `json:"id"`
-	Name    string    `json:"name"`
-	Price   int64     `json:"price"`
-	Num     int64     `json:"num"`
-	Prizes  []*Prize  `json:"prizes"`
-	StartAt time.Time `json:"start_at"`
-	DrawAt  time.Time `json:"draw_at"`
-}
-
-type Prize struct {
-	ID     string `json:"id"`
-	Name   string `json:"name`
-	Num    int64  `json:"num"`
-	Amount int64  `json:"amount"`
-}
-
-type Result struct {
-	Status  DrawStatus `json:"status"`
-	Winners []*Winner  `json:"winners"`
-}
-
-type DrawStatus int64
-
-const (
-	DrawStatusNotDrawn DrawStatus = 0
-	DrawStatusMidDrawn DrawStatus = 1
-	DrawStatusDrawn    DrawStatus = 2
-)
-
-type Winner struct {
-	PrizeID string   `json:"prize_id"`
-	Numbers []string `json:"numbers"`
-}