【AWS Lambda使い方ガイド】NodemailerのAWS SESクライアントを使ってLambdaからEmailを送信してみる

            
            AWS_ACCESS_KEY_ID="....";
AWS_SECRET_ACCESS_KEY="....";
        

            
            const nodemailer = require("nodemailer");
const aws = require("@aws-sdk/client-ses");

const ses = new aws.SES({
    apiVersion: "2010-12-01",
    region: "us-east-1",
});

const transporter = nodemailer.createTransport({
    SES: { ses, aws },
});
        

            
            import nodemailer from 'nodemailer';
import * as aws from "@aws-sdk/client-ses";

const ses = new aws.SES({
    apiVersion: "2010-12-01",
    region: "us-east-1", //👈自身のSESの設定済みリージョンであることを確認
});

export function sendEmail() {
    //👇送信先のアドレス
    const email = 'okurisaki@oaite.jp';

    //👇送信する内容
    const mail = {
        from: 'hogehoge@piyopiyo.com',
        to: email,
        subject: 'SESからのメールです',
        text: 'こんにちは！',
        html: `<p>こんにちは！</p>`,
    };

    try {
        const transport = nodemailer.createTransport({
            SES: { ses, aws },
        });

        const result = await transport.sendMail(mail);

        return JSON.stringfy(result);
    } catch (err) {
        return JSON.stringfy(err);
    }
}
        

            
            AWS_ACCESS_KEY_ID="....";
AWS_SECRET_ACCESS_KEY="....";
        

            
            import {
    Stack,
    StackProps,
    aws_lambda,
    //...中略
} from 'aws-cdk-lib';
import { Construct } from 'constructs';

export class CdkTacokinShopStack extends Stack {
    constructor(scope: Construct, id: string, props?: StackProps) {
        super(scope, id, props);

        //...いろいろ中略

        const lambda = new aws_lambda.Function(this, 'Server', {
            runtime: aws_lambda.Runtime.NODEJS_20_X,
            code: aws_lambda.Code.fromAsset(join(__dirname, '../../build/lambda')),
            handler: 'index.handler',
            architecture: aws_lambda.Architecture.ARM_64,
            memorySize: 128,
            timeout: Duration.seconds(30),
            environment: {
                //☆👇クレデンシャル変数は直接Lambdaへ注入できない！
                "AWS_ACCESS_KEY_ID": process.env.AWS_ACCESS_KEY_ID,
                "AWS_SECRET_ACCESS_KEY": process.env.AWS_SECRET_ACCESS_KEY,
            }
        }).addFunctionUrl({
            authType: aws_lambda.FunctionUrlAuthType.NONE,
            invokeMode: aws_lambda.InvokeMode.RESPONSE_STREAM
        });

        //...以下略
        

            
            import {
    Stack,
    StackProps,
    aws_lambda,
    aws_iam,
    //...中略
} from 'aws-cdk-lib';
import { Construct } from 'constructs';

export class CdkTacokinShopStack extends Stack {
    constructor(scope: Construct, id: string, props?: StackProps) {
        super(scope, id, props);

        //...いろいろ中略

        //👇Lambda用の基本ポリシー
        const lambda_basic_policy = new aws_iam.ManagedPolicy(this, 'Lambda_basic_policy', {
            managedPolicyName: 'lambda_basic_policy',
            statements: [
                new aws_iam.PolicyStatement({
                    effect: aws_iam.Effect.ALLOW,
                    actions: [
                        "logs:CreateLogGroup",
                        "logs:CreateLogStream",
                        "logs:PutLogEvents"
                    ],
                    resources: [
                        'arn:aws:logs:*:*:*'
                    ],
                }),
            ],
        });

        //☆👇SES用のメール送信ポリシー
        const ses_sender_policy = new aws_iam.ManagedPolicy(this, 'Ses_sender_policy', {
            managedPolicyName: 'ses_sender_policy',
            statements: [
                new aws_iam.PolicyStatement({
                    effect: aws_iam.Effect.ALLOW,
                    actions: [
                        "ses:SendEmail",
                        "ses:SendRawEmail"
                    ],
                    resources: [
                        '*'
                    ],
                }),
            ],
        });

        //👇カスタムロールの作成
        const ses_role = new aws_iam.Role(this, 'ses_sender_role', {
            roleName: 'ses_sender_role',
            assumedBy: new aws_iam.ServicePrincipal('lambda.amazonaws.com'),
        });
        //👇先ほど作成した２つのポリシーをアタッチ
        ses_role.addManagedPolicy(lambda_basic_policy);
        ses_role.addManagedPolicy(ses_sender_policy);

        const lambda = new aws_lambda.Function(this, 'Server', {
            runtime: aws_lambda.Runtime.NODEJS_20_X,
            code: aws_lambda.Code.fromAsset(join(__dirname, '../../build/lambda')),
            handler: 'index.handler',
            architecture: aws_lambda.Architecture.ARM_64,
            memorySize: 128,
            timeout: Duration.seconds(30),
            //☆👇カスタム実行ロールを指定
            role: ses_role
        }).addFunctionUrl({
            authType: aws_lambda.FunctionUrlAuthType.NONE,
            invokeMode: aws_lambda.InvokeMode.RESPONSE_STREAM
        });

        //...以下略