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© 2024, Amazon Web Services, Inc. or its affiliates. © 2024, Amazon Web Services, Inc. or its affiliates. 短縮 URL サービス 4分間クッキング - Amazon CloudFront KeyValueStore, CloudFront Functions, AWS CDK で作成、CloudWatch Logs で簡易アクセス集計 - Yoshinori Fujiwara Sr. Solutions Architect Amazon Web Services Japan G.K. JAW S DAY S 2 0 2 4 B - 1 1 恒 例 ︕ ソ リ ュ ー シ ョ ン ア ー キ テ ク ト 怒 涛 の LT

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© 2024, Amazon Web Services, Inc. or its affiliates. ⾃⼰紹介 藤原 吉規 🧑🚒 デジタルサービスソリューション部 シニア ソリューションアーキテクト デジタルネイティブビジネスのお客様に 技術⽀援しています。 好きな AWS サービス Amazon CloudFront AWS 技術サポート 2

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© 2024, Amazon Web Services, Inc. or its affiliates. 作成済みの短縮 URL サービスに実際にアクセスしましょう 3 QR コードが読める 📸 カメラアプリ のご準備を︕

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© 2024, Amazon Web Services, Inc. or its affiliates. JAWS DAYS 2024 このあとの楽しみなセッションは︖ 4 🍻 懇親会 🍻 恒例︕ SA 怒涛の LT (本セッション)

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© 2024, Amazon Web Services, Inc. or its affiliates. 短縮 URL サービス全体アーキテクチャ 5 クライアント (ビューワー) GET /sa-lt ビューワーリクエスト 302 Found Location: https://jawsdays2024.jaws-ug.jp/sessions/timetable/B-11 AWS Cloud Development Kit (AWS CDK) デプロイ Amazon CloudFront エッジロケーション CloudFront エッジ キャッシュ CloudFront Functions CloudFront KeyValueStore Amazon CloudWatch Logs トラッキング

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© 2024, Amazon Web Services, Inc. or its affiliates. src/redirectconfig.json { "data": [ { "key": "sa-lt", "value": "https://jawsdays2024.jaws-ug.jp/sessions/timetable/B-11/" }, { "key": "in-house-development", "value": "https://jawsdays2024.jaws-ug.jp/sessions/timetable/D-12/" }, { "key": "social-gathering", "value": "https://jawsdays2024.jaws-ug.jp/sessions/timetable/SOCIAL/" } ] } 6

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© 2024, Amazon Web Services, Inc. or its affiliates. src/viewer-request.js import cf from "cloudfront"; const kvsId = "KEY_VALUE_STORE_ID_PLACEHOLDER"; // KeyValueStore Id はリプレースする const kvs = cf.kvs(kvsId); function response_generate(target) { return { statusCode: 302, statusDescription: "Found", headers: { location: { value: target }, }, }; } … 7 async function handler(event) { // マッチしなかったときのデフォルト URL let target = 'https://jawsdays2024.jaws-ug.jp/'; if (event.request.uri === "/") { return response_generate(target); } const key = event.request.uri.split("/")[1]; try { target = await kvs.get(key); // トラッキング⽤のログ console.log(`Match found: ${key} -> ${target}`); } catch (err) { console.log(`Error when fetching key ${key}: ${err}`); } // ターゲット URL にリダイレクト return response_generate(target); }

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© 2024, Amazon Web Services, Inc. or its affiliates. CDK TypeScript source const keyValueStore = new cdk.aws_cloudfront.KeyValueStore(this, 'KeyValueStore', { source: cdk.aws_cloudfront.ImportSource.fromAsset('src/re directconfig.json'), }); // CloudFront Functions を読み込んで、 KeyValueStore Id をリプレースする const functionCode = readFileSync("src/viewer- request.js", "utf8").replace( "KEY_VALUE_STORE_ID_PLACEHOLDER", keyValueStore.keyValueStoreId, ); … 8 const viewerRequestFunction = new cdk.aws_cloudfront.Function(this, "ViewerRequestFunction", { code: cdk.aws_cloudfront.FunctionCode.fromInline(functionCode), runtime: cdk.aws_cloudfront.FunctionRuntime.JS_2_0, keyValueStore: keyValueStore, }); const distribution = new cdk.aws_cloudfront.Distribution(this, "Distribution", { defaultBehavior: { origin: new cdk.aws_cloudfront_origins.HttpOrigin("never.referenced"), functionAssociations: [ { function: viewerRequestFunction, eventType: cdk.aws_cloudfront.FunctionEventType.VIEWER_REQUEST, }, ], }, }); new cdk.CfnOutput(this, 'DistributionURL', { value: distribution.distributionDomainName });

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© 2024, Amazon Web Services, Inc. or its affiliates. CloudWatch Logs Insights で簡易集計 fields @timestamp | filter @message like /Match found/ | parse @message /Match found: (?<@slug>.*?) ->/ | stats count(*) as count by @slug | sort count desc 9 ロググループ クエリ 可視化 /aws/cloudfront/function/

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© 2024, Amazon Web Services, Inc. or its affiliates. 4 分 (実測) で短縮 URL サービスをデプロイできました︕ 10

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© 2024, Amazon Web Services, Inc. or its affiliates. 集計結果は後ほど︕ 11 https://twitter.com/twingo_b/status/1763840023819059580

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© 2024, Amazon Web Services, Inc. or its affiliates. Thank you! © 2024, Amazon Web Services, Inc. or its affiliates.