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src/mailer.js

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+// Load the AWS SDK for Node.js
+import { SESv2Client, SendEmailCommand } from "@aws-sdk/client-sesv2"; // ES Modules import
+const client = new SESv2Client();
+
+export default function sendEmail(mailData) {
+  const input = { // SendEmailRequest
+    FromEmailAddress: mailData.from,
+    Destination: { // Destination
+      ToAddresses: [ // EmailAddressList
+        mailData.to,
+      ],
+    },
+    Content: { // EmailContent
+      Simple: { // Message
+        Subject: { // Content
+          Data: mailData.subject, // required
+          Charset: 'utf-8',
+        },
+        Body: { // Body
+          Html: {
+            Data: mailData.body, // required
+            Charset: 'utf-8',
+          },
+        },
+      },
+    },
+  };
+
+  const command = new SendEmailCommand(input);
+  return client.send(command);
+}