簡易的なテイクアウト予約システムを Amazon Connect で作ってみた – Amazon Connect アドベントカレンダー 2022
こんにちは！森田です。
この記事は「Amazon Connect アドベントカレンダー 2022」の23日目の記事となります！
Amazon Connectアドベントカレンダー2022は、クラスメソッドと株式会社ギークフィードさんでチャレンジしている企画となっており、他にもAmazon Connect関する様々な記事がありますのでぜひご参照ください！！
この記事では、Amazon Connect を利用して簡易的なテイクアウト予約システムを作ってみます！
やりたいこと
一般的な飲食店向けのテイクアウトの仕組みを Amazon Connect で作っていきます。
ただ、上記の仕組みを完璧に作り上げることは時間的に難しいので、細かいところは作成せず、雰囲気でそれっぽく作っていきます。
具体的には、以下のことができるように作っていきます。
- ユーザから電話をかけることで、自動的にテイクアウトのオーダをとる
- 店舗側は簡単に現在のテイクアウトのオーダを確認することができる
構成
以下のような構成で作成していきます。
今回は、オーダの確認がしやすいように、Google Calendarにオーダ内容を反映させていくようにします。
また、ユーザにメニューを共有する方法としては今回は、SMSでメニュー内容を送信するようにしています。
Google Calendar の設定
Google Calendar API 設定
Google Calendar をAPI から操作するため、Google Cloudで設定を行なっていきます。 まずは、「APIとサービス」→「有効なAPIとサービス」から Google Calendar API を有効化します。
続いて、「IAMと管理」→「サービスアカウント」→「サービスアカウントを作成」からサービスアカウントを作成します。
作成後は、上記のようにサービスアカウントのメールアドレスが払い出されます。
サービスアカウントを選択し、APIを実行するための鍵をJSONで作成し、ダウンロードします。（後ほどLambdaへアップします。）
Google Calendar の新規作成・設定
以下のリンクから新しいカレンダーの作成行っていきます。
https://calendar.google.com/calendar/u/1/r/settings/createcalendar
作成後、マイカレンダーの設定より「特定のユーザーとの共有」へサービスアカウントのメールアドレスを追加し、変更および共有の管理権限を設定します。
後ほど、カレンダー IDも利用するのでメモしておきます。
Lambdaの作成
環境変数の設定
環境変数にcalendar_idを設定します。値については、先ほどメモしたものを入力します。
コードの作成
以下のコードで Lambdaを作成します。
Lambdaのソースコード（クリックして展開）
import json
import boto3
from boto3.dynamodb.conditions import Key, Attr
import datetime
import googleapiclient.discovery
import google.auth
import os
StoreInfo = {}
table = boto3.resource("dynamodb").Table("storeItem")
def lambda_handler(event, context):
if len(StoreInfo)==0:
store_get()
if event["Details"]['Parameters'].get("menuSend"):
print(event["Details"]['Parameters'].get("menuSend"))
sms_send(event["Details"]['Parameters'].get("menuSend"))
return {
"status":"ok"
}
elif event["Details"]['Parameters'].get("storeInfo"):
key = event["Details"]['Parameters'].get("storeInfo")
return {
key:StoreInfo[key]
}
elif event["Details"]['Parameters'].get("takeoutCartAdd"):
if event['Details']['ContactData']['Attributes']['takeout'] == "None":
takeout = "{},{}".format(event['Details']['ContactData']['Attributes']['item_id'], event['Details']['ContactData']['Attributes']['item_num'])
else:
takeout = event['Details']['ContactData']['Attributes']['takeout']
takeout += ",{},{}".format(event['Details']['ContactData']['Attributes']['item_id'], event['Details']['ContactData']['Attributes']['item_num'])
return {
"takeout":takeout
}
elif event["Details"]['Parameters'].get("dateCheck"):
date = event['Details']['ContactData']['Attributes']['date']
text = "{}{}".format(datetime.datetime.now().year, date)
try:
target = datetime.datetime.strptime(text+"23:59:59", '%Y%m%d%H:%M:%S')
if datetime.datetime.now() >= target:
return {
"result": "False",
"message": "日付が誤っています"
}
if block_check_day(text):
return {
"result": "False",
"message": "ご入力いただいた日付は、現在、新規のご予約を行っておりません。"
}
return {
"result": "True"
}
except:
return {
"result": "False",
"message": "日付が誤っています"
}
elif event["Details"]['Parameters'].get("timeCheck"):
time = event['Details']['ContactData']['Attributes']['time']
try:
datetime.datetime.strptime(time, "%H%M")
except:
return {
"result": "False",
"message": "時間が誤っています"
}
if int(time[2:4])%15 !=0:
return {
"result": "False",
"message": "時間は15分単位としてください"
}
minutes = StoreInfo["store_takeout_min_minutes"]
date = event['Details']['ContactData']['Attributes']['date']
now = datetime.datetime.now()+ datetime.timedelta(hours=9)
target = datetime.datetime.strptime(now.strftime('%Y')+date+time, '%Y%m%d%H%M')
if block_check(target):
print("時間が予約ずみ")
return {
"result": "False",
"message": "ご入力いただいた時間は、現在、新規のご予約を行っておりません。"
}
dates = now + datetime.timedelta(minutes=int(minutes))
print(target, dates)
if dates >= target:
m = dates.minute
h = dates.hour
if m >0 and m<=15: m = "15" elif m >15 and m<=30: m = "30" elif m >30 and m<=45: m = "45" elif m >45 :
m = "00"
h = h+1
else:
m = "00"
return {
"result": "False",
"message": "最短で予約できる時間は、{}時{}分となっています".format(h, m)
}
data = event['Details']['ContactData']['Attributes']['takeout'].split(",")
message = "ご入力いただきありがとうございます。ご注文内容は以下の通りです。"
sumarry = ""
description = "電話番号:"+event['Details']['ContactData']['CustomerEndpoint']['Address']+"\n受け取り日時: "+target.strftime('%Y/%m/%d %H:%M')
for i in range(0, len(data), 2):
item = StoreInfo["items"][data[i]]
message += item["kana"] + "を" + str(data[i+1])+"個。"
sumarry += item["name"]+"×"+ str(data[i+1])+"個 "
date = event['Details']['ContactData']['Attributes']['date']
message += "受け取り日時は、"+date[0:2]+"月"+date[2:4]+"日"+time[0:2]+"時"+time[2:4]+ "分となっております。"
google_calendar(target, target+ datetime.timedelta(minutes=30), sumarry, description)
print(message)
return {
"result": "True",
"message":message
}
item_id = event['Details']['ContactData']['Attributes']['item_id']
try:
item = StoreInfo["items"].get(item_id)
if item:
# TODO implement
return {
"result": str(item_id),
"message":"{}が選択されました。".format(item["kana"]),
"kana":item["kana"]
}
return {
"result": "False"
}
except:
return {
"result": "False"
}
def google_calendar(start, stop, summary, description):
SCOPES = ['https://www.googleapis.com/auth/calendar']
calendar_id = os.getenv('calendar_id')
gapi_creds = google.auth.load_credentials_from_file('credentials.json', SCOPES)[0]
service = googleapiclient.discovery.build('calendar', 'v3', credentials=gapi_creds)
body = {
'summary': summary,
"description":description,
'start': {
'dateTime': start.isoformat(),
'timeZone': 'Japan'
},
'end': {
'dateTime': stop.isoformat(),
'timeZone': 'Japan'
},
}
event = service.events().insert(calendarId=calendar_id, body=body).execute()
def sms_send(phone):
sns = boto3.client('sns')
response = sns.publish(
PhoneNumber = phone,
Subject = '【{}】テイクアウトメニューのお知らせ'.format(StoreInfo["store_name"]),
Message = StoreInfo["body"]
)
def store_get():
response = table.get_item(Key={"item_type": "store_name", "item_id":0})
store_name = response.get("Item")["name"]
StoreInfo["store_name"] = store_name
response = table.get_item(Key={"item_type": "store_takeout_min", "item_id":0})
StoreInfo["store_takeout_min_minutes"] = response.get("Item")["minutes"]
res = table.query(
KeyConditionExpression=Key('item_type').eq('item'),
)
d = {}
body = "以下がメニューとなります。\n商品番号:商品名:金額\n"
for item in res.get("Items"):
d[str(item["item_id"])] = item
body += "{} : {} : {}円\n".format(item["item_id"], item["name"], item["price"])
StoreInfo["items"] = d
StoreInfo["body"] = body
def block_check(target):
SCOPES = ['https://www.googleapis.com/auth/calendar']
calendar_id = os.getenv('calendar_id')
gapi_creds = google.auth.load_credentials_from_file('credentials.json', SCOPES)[0]
service = googleapiclient.discovery.build('calendar', 'v3', credentials=gapi_creds)
target_utc = target - datetime.timedelta(hours=9)
event_list = service.events().list(
calendarId=calendar_id, timeMin=target_utc.isoformat() + 'Z', q="ブロック",
maxResults=3, singleEvents=True,
orderBy='startTime').execute()
if len(event_list['items'])!=0:
for item in event_list['items']:
start = item["start"]["dateTime"].split("+")[0]
start = datetime.datetime.strptime(start, '%Y-%m-%dT%H:%M:%S')
stop = item["end"]["dateTime"].split("+")[0]
stop = datetime.datetime.strptime(stop, '%Y-%m-%dT%H:%M:%S')
if target >= start and target < stop:
return True
return False
def block_check_day(target_text):
SCOPES = ['https://www.googleapis.com/auth/calendar']
calendar_id = os.getenv('calendar_id')
gapi_creds = google.auth.load_credentials_from_file('credentials.json', SCOPES)[0]
service = googleapiclient.discovery.build('calendar', 'v3', credentials=gapi_creds)
target = datetime.datetime.strptime(target_text, '%Y%m%d')
target_utc = target - datetime.timedelta(hours=9)
event_list = service.events().list(
calendarId=calendar_id, q="休み",
maxResults=3, singleEvents=True,
orderBy='startTime').execute()
if len(event_list['items'])!=0:
for item in event_list['items']:
text = "".join(item["start"]["date"].split("-"))
if text == target_text:
return True
return False
Lambda レイヤーの準備
上記のコードではライブラリとして、google-api-python-client、google-authを利用するため、以下のコマンドでレイヤー化して、Lambadaの追加します。
$ mkdir python $ cd python $ pip3 install google-api-python-client -t . $ pip3 install google-auth -t . $ zip -r ../python .
Google Calendar API の鍵ファイル（JSON）を作成
Lambda のコンソールから直接、鍵ファイル（JSON）をコピーアンドペーストで作成します。 作成後は、以下のような状態となります。
IAMロールの設定
IAMロールについては、DynamoDBとSNSの権限を与えます。
DynamoDB の作成
テーブル名をstoreItem、パーティションキーをitem_type、ソートキーをitem_idでDynamoDBのテーブルを作成します。
テーブル作成後、以下のように店舗情報を項目として追加していきます。
店舗名の項目作成
以下の項目を作成します。ここで設定したnameの値が電話をかけると再生されるようになります。
| 属性名 | 値 | タイプ |
|---|---|---|
| item_type | store_name | 文字列 |
| item_id | 0 | 数値 |
| name | 店舗名 | 文字列 |
店舗最短予約時間の項目作成
以下の項目を作成します。ここで設定したminutesの数値に基づいて最短予約時間の設定ができます。
例えば、minutes=30で 12:20ごろ電話をかけた場合の最短予約時間は、 13:00となります。（15分単位で切り上げされます。）
| 属性名 | 値 | タイプ |
|---|---|---|
| item_type | store_takeout_min | 文字列 |
| item_id | 0 | 数値 |
| minutes | 好きな数値 | 数値 |
テイクアウト商品の項目作成
以下の項目では、item_idを0以上で作成していくことで、テイクアウト商品の情報の作成ができます。
| 属性名 | 値 | タイプ |
|---|---|---|
| item_type | item | 文字列 |
| item_id | 0以上の値を設定 | 数値 |
| name | 商品名 | 文字列 |
| kana | 読み上げるときのテキスト | 文字列 |
| price | 金額 | 数値 |
SNSの設定
SMS送信を行う際には、サンドボックス環境であれば、事前に電話番号の検証が必要となります。 以下を参考に対応します。
Amazon Connect
Lambdaをコンタクトフローを関連付け
Amazon Connect コンソールの「問い合わせフロー」→「AWS Lambda」に先ほど作成したLambdaを追加します。
コンタクトフローを作成
以下のファイルをインポートしてコンタクトフローを作成します。 コンタクトフロー内の、「AWS Lambda 関数を呼び出す」ブロックについては、必要に応じて正しいLambda名で再設定してください。
takeout_reserved_flow（クリックして展開）
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ext":"$.External.message"},"Identifier":"91a15660-b149-4343-8f1e-1dca33a8a8a7","Type":"MessageParticipant","Transitions":{"NextAction":"f0cf9fb1-83fd-4539-825a-0086b371d530","Errors":[{"NextAction":"8f61a260-9ec8-41b9-99ff-ef2a7e14049c","ErrorType":"NoMatchingError"}]}},{"Parameters":{"Attributes":{"item_num":"$.StoredCustomerInput","kana":"$.External.kana"}},"Identifier":"4c95d891-2a7c-4062-a662-7bd62407ab23","Type":"UpdateContactAttributes","Transitions":{"NextAction":"dc46043c-4201-4d76-9461-3709d3be3e83","Errors":[{"NextAction":"eea70488-2b74-4f54-8ed2-4e07309ccae0","ErrorType":"NoMatchingError"}]}},{"Parameters":{"LambdaFunctionARN":"arn:aws:lambda:ap-northeast-1::function:reserved-item-checker","InvocationTimeLimitSeconds":"3","LambdaInvocationAttributes":{"takeoutCartAdd":"True"}},"Identifier":"dc46043c-4201-4d76-9461-3709d3be3e83","Type":"InvokeLambdaFunction","Transitions":{"NextAction":"1d73241e-85f2-41b6-95fd-8c89fbcc1704","Errors":[{"NextAction":"eea70488-2b74-4f54-8ed2-4e07309ccae0","ErrorType":"NoMatchingError"}]}},{"Parameters":{"Attributes":{"takeout":"$.External.takeout"}},"Identifier":"1d73241e-85f2-41b6-95fd-8c89fbcc1704","Type":"UpdateContactAttributes","Transitions":{"NextAction":"67138f75-d10a-4c25-a5c7-14b7667d5821","Errors":[{"NextAction":"eea70488-2b74-4f54-8ed2-4e07309ccae0","ErrorType":"NoMatchingError"}]}},{"Parameters":{"Text":"もう一度お聞きします"},"Identifier":"1cf0652b-eb96-407c-b288-89399ffd1dfa","Type":"MessageParticipant","Transitions":{"NextAction":"0b467922-e192-4211-af53-66bf62b33269","Errors":[{"NextAction":"6eb5ba9b-5895-4905-b2ea-3f89a56bfa46","ErrorType":"NoMatchingError"}]}},{"Parameters":{},"Identifier":"6eb5ba9b-5895-4905-b2ea-3f89a56bfa46","Type":"DisconnectParticipant","Transitions":{}},{"Parameters":{"StoreInput":"True","InputTimeLimitSeconds":"5","Text":"ご希望の商品の番号を入力して、最後にシャープを入力してください。","DTMFConfiguration":{"DisableCancelKey":"False","InputTerminationSequence":"#"},"InputValidation":{"CustomValidation":{"MaximumLength":"20"}}},"Identifier":"ba4beb4d-0897-4835-b4d5-ec14f2437477","Type":"GetParticipantInput","Transitions":{"NextAction":"18a120d2-4b63-4e67-8dd5-e32a5649454a","Errors":[{"NextAction":"dc55d7f4-fd0a-45d9-94e2-14affd19518c","ErrorType":"NoMatchingError"}]}},{"Parameters":{},"Identifier":"eea70488-2b74-4f54-8ed2-4e07309ccae0","Type":"DisconnectParticipant","Transitions":{}},{"Parameters":{"Text":"$.Attributes.kana が $.Attributes.item_num 個、カートに追加されました。"},"Identifier":"67138f75-d10a-4c25-a5c7-14b7667d5821","Type":"MessageParticipant","Transitions":{"NextAction":"0b467922-e192-4211-af53-66bf62b33269","Errors":[{"NextAction":"eea70488-2b74-4f54-8ed2-4e07309ccae0","ErrorType":"NoMatchingError"}]}},{"Parameters":{},"Identifier":"8c2c2cab-6d36-4681-bfe1-859207db364e","Type":"DisconnectParticipant","Transitions":{}},{"Parameters":{"Attributes":{"date":"$.StoredCustomerInput"}},"Identifier":"830d2712-87f7-4be7-a343-97f38af0cdfc","Type":"UpdateContactAttributes","Transitions":{"NextAction":"3f6cb8fc-5f47-4671-bb75-220c329fc978","Errors":[{"NextAction":"8c2c2cab-6d36-4681-bfe1-859207db364e","ErrorType":"NoMatchingError"}]}},{"Parameters":{"Text":"$.External.message"},"Identifier":"1a81baeb-66f7-4e48-9e12-440f2d8326f0","Type":"MessageParticipant","Transitions":{"NextAction":"963d038b-935c-485f-856e-7d24432c8dbc","Errors":[{"NextAction":"6eb5ba9b-5895-4905-b2ea-3f89a56bfa46","ErrorType":"NoMatchingError"}]}},{"Parameters":{"StoreInput":"False","InputTimeLimitSeconds":"5","Text":"続けて商品を追加する場合はゼロを入力してください。\n商品の選択を終了する場合は、いちを入力してください。"},"Identifier":"0b467922-e192-4211-af53-66bf62b33269","Type":"GetParticipantInput","Transitions":{"NextAction":"1cf0652b-eb96-407c-b288-89399ffd1dfa","Conditions":[{"NextAction":"ba4beb4d-0897-4835-b4d5-ec14f2437477","Condition":{"Operator":"Equals","Operands":["0"]}},{"NextAction":"963d038b-935c-485f-856e-7d24432c8dbc","Condition":{"Operator":"Equals","Operands":["1"]}}],"Errors":[{"NextAction":"1cf0652b-eb96-407c-b288-89399ffd1dfa","ErrorType":"InputTimeLimitExceeded"},{"NextAction":"1cf0652b-eb96-407c-b288-89399ffd1dfa","ErrorType":"NoMatchingCondition"},{"NextAction":"eea70488-2b74-4f54-8ed2-4e07309ccae0","ErrorType":"NoMatchingError"}]}},{"Parameters":{"StoreInput":"True","InputTimeLimitSeconds":"5","Text":"受け取り日時をお聞きします。\n日付を入力してください。\n例えば、12月8日であれば、1208と入力してください。","DTMFConfiguration":{"DisableCancelKey":"False"},"InputValidation":{"CustomValidation":{"MaximumLength":"4"}}},"Identifier":"963d038b-935c-485f-856e-7d24432c8dbc","Type":"GetParticipantInput","Transitions":{"NextAction":"830d2712-87f7-4be7-a343-97f38af0cdfc","Errors":[{"NextAction":"8c2c2cab-6d36-4681-bfe1-859207db364e","ErrorType":"NoMatchingError"}]}},{"Parameters":{"Text":"$.External.message"},"Identifier":"c695637d-d921-480a-b55e-1d1868862f23","Type":"MessageParticipant","Transitions":{"NextAction":"c347c5f6-3805-4770-9c84-da4a9156c8b1","Errors":[{"NextAction":"b27fc9e4-83d2-4f65-9346-93508fa94af5","ErrorType":"NoMatchingError"}]}},{"Parameters":{"Text":"$.External.message"},"Identifier":"629650f4-96c9-4511-a994-383bb70a6d38","Type":"MessageParticipant","Transitions":{"NextAction":"1c5107ba-f7c9-4ad8-a409-3984eb09203e","Errors":[{"NextAction":"1c5107ba-f7c9-4ad8-a409-3984eb09203e","ErrorType":"NoMatchingError"}]}},{"Parameters":{"Attributes":{"time":"$.StoredCustomerInput"}},"Identifier":"14f7fe64-5844-435d-a748-5447338af00f","Type":"UpdateContactAttributes","Transitions":{"NextAction":"b09fd57b-06d7-4186-adef-a168450360de","Errors":[{"NextAction":"1c5107ba-f7c9-4ad8-a409-3984eb09203e","ErrorType":"NoMatchingError"}]}},{"Parameters":{},"Identifier":"1c5107ba-f7c9-4ad8-a409-3984eb09203e","Type":"DisconnectParticipant","Transitions":{}},{"Parameters":{"ComparisonValue":"$.External.result"},"Identifier":"b0645600-d53c-4496-aa21-5d34b8a7944c","Type":"Compare","Transitions":{"NextAction":"629650f4-96c9-4511-a994-383bb70a6d38","Conditions":[{"NextAction":"c695637d-d921-480a-b55e-1d1868862f23","Condition":{"Operator":"Equals","Operands":["False"]}}],"Errors":[{"NextAction":"629650f4-96c9-4511-a994-383bb70a6d38","ErrorType":"NoMatchingCondition"}]}},{"Parameters":{"LambdaFunctionARN":"arn:aws:lambda:ap-northeast-1::function:reserved-item-checker","InvocationTimeLimitSeconds":"8","LambdaInvocationAttributes":{"timeCheck":"True"}},"Identifier":"b09fd57b-06d7-4186-adef-a168450360de","Type":"InvokeLambdaFunction","Transitions":{"NextAction":"b0645600-d53c-4496-aa21-5d34b8a7944c","Errors":[{"NextAction":"1c5107ba-f7c9-4ad8-a409-3984eb09203e","ErrorType":"NoMatchingError"}]}},{"Parameters":{},"Identifier":"b7a461e6-047c-4331-bebb-8116c8a31396","Type":"DisconnectParticipant","Transitions":{}},{"Parameters":{"Text":"$.External.store_name です。\nこちらの電話はテイクアウト専門窓口です。"},"Identifier":"66925e31-a71c-4544-b45a-8400440f72cd","Type":"MessageParticipant","Transitions":{"NextAction":"fcd0da64-5e41-43f1-bef5-10876537cdab","Errors":[{"NextAction":"b7a461e6-047c-4331-bebb-8116c8a31396","ErrorType":"NoMatchingError"}]}},{"Parameters":{"Text":"お電話ありがとうございます。"},"Identifier":"f80cddb4-96b8-412e-aa74-f43c8ac641f4","Type":"MessageParticipant","Transitions":{"NextAction":"75cfc998-9a25-427e-b054-1a5b296f24d7","Errors":[{"NextAction":"773dd1e8-48f8-48fb-906f-25422a02df46","ErrorType":"NoMatchingError"}]}},{"Parameters":{"LambdaFunctionARN":"arn:aws:lambda:ap-northeast-1::function:reserved-item-checker","InvocationTimeLimitSeconds":"3","LambdaInvocationAttributes":{"storeInfo":"store_name"}},"Identifier":"75cfc998-9a25-427e-b054-1a5b296f24d7","Type":"InvokeLambdaFunction","Transitions":{"NextAction":"66925e31-a71c-4544-b45a-8400440f72cd","Errors":[{"NextAction":"b7a461e6-047c-4331-bebb-8116c8a31396","ErrorType":"NoMatchingError"}]}}]}
動作確認
では、動作確認してみます。商品については以下の情報を登録しています。
通常の電話予約
以下の動画のようにガイダンスが流れ、メニューのSMS送信、商品の選択から予約日時までの入力ができております。
また、予約完了後は、以下のようにGoogle Calendar上に予約内容は反映されております。
ユーザから予約をさせたくないとき
事前に以下のように Google Calendar にブロックを入れることでユーザから予約できないようになります。
日単位で予約をさせたくないときは、以下のように終日のスケジュールを追加します。
最後に
今回はざっくりと作ってみましたが、結構規模が大きいので、時間がある時にCloudFormation化したいと考えています。 また、その際に細かい機能追加とかもやってみたいですね。
