Using aws lambda with ses

To use AWS Lambda with Simple Email Service (SES), you would typically set up an AWS Lambda function that can be triggered by SES to process inbound emails or take action on email-sending events.

Here’s a step-by-step Pulumi program written in TypeScript that demonstrates how to link AWS Lambda and SES:

1. Email Identity: First, you'll need to verify an email identity in SES that you want to use to send emails.
2. Lambda Function: Next, you will create a Lambda function that the SES will trigger.
3. Permissions: Assign permissions to the Lambda function to allow SES to invoke it.
4. SES Rule Set: Configure an SES rule set and rule to define the conditions under which your Lambda function will be invoked.

Below is a detailed Pulumi TypeScript program to carry out these steps. Make sure to replace any placeholder strings with actual values relevant to your AWS environment, such as the emailIdentity:

import * as aws from "@pulumi/aws";

// Step 1: Verify an email identity in SES to use for sending emails.
const emailIdentity = new aws.ses.EmailIdentity("exampleIdentity", {
    email: "example@example.com", // Replace with your email address
});

// Step 2: Create a Lambda function that will be triggered by SES.
const exampleLambda = new aws.lambda.Function("exampleLambda", {
    code: new pulumi.asset.AssetArchive({
        ".": new pulumi.asset.FileArchive("./path-to-your-lambda-code"), // Specify path to your Lambda code
    }),
    runtime: aws.lambda.NodeJS12dXRuntime,
    role: exampleLambdaRole.arn,
    handler: "index.handler",
});

// IAM role for the Lambda function
const exampleLambdaRole = new aws.iam.Role("exampleLambdaRole", {
    assumeRolePolicy: {
        Version: "2012-10-17",
        Statement: [{
            Action: "sts:AssumeRole",
            Effect: "Allow",
            Principal: {
                Service: "lambda.amazonaws.com"
            },
        }],
    },
});

// Step 3: Assign permissions to the Lambda function to allow SES to invoke it.
const lambdaPermission = new aws.lambda.Permission("lambdaPermission", {
    action: "lambda:InvokeFunction",
    function: exampleLambda.name,
    principal: "ses.amazonaws.com",
    sourceArn: emailIdentity.arn,
});

// Step 4: Configure an SES receipt rule set and rule.
const exampleRuleSet = new aws.ses.ReceiptRuleSet("exampleRuleSet", {});

const exampleRule = new aws.ses.ReceiptRule("exampleRule", {
    ruleSetName: exampleRuleSet.id,
    recipients: ["example@example.com"], // Replace with your email address
    enabled: true,
    actions: [{
        type: "Lambda",
        functionArn: exampleLambda.arn,
        invocationType: "Event",
    }],
});

// Export the SES email identity ARN
export const sesEmailIdentityArn = emailIdentity.arn;

// Export the Lambda function ARN
export const lambdaFunctionArn = exampleLambda.arn;

Here's what each part does:

• EmailIdentity: This resource verifies your email address with SES, allowing you to use it to send emails.
• IAM Role (exampleLambdaRole): The Lambda function needs an IAM role that gives it permissions to run. This role is assumed by the Lambda service.
• Lambda Function (exampleLambda): This is the AWS Lambda function that will be invoked by SES. Its code package is provided as an asset, and you should replace the placeholder path with the actual path to your Lambda code bundle.
• Lambda Permission (lambdaPermission): This resource grants permission for SES to trigger the Lambda function.
• Receipt Rule Set (exampleRuleSet) and Receipt Rule (exampleRule): The SES receipt rule set is a collection of rules that define actions to take when SES receives an email. Our rule specifies that the Lambda function should be invoked for emails sent to example@example.com.

Make sure to put your Lambda function code at the specified file path and update placeholders with your information. Once deployed, this code will configure SES to invoke your Lambda function whenever it receives an email that matches the specified conditions.