Initial commit

Author: justinmakaila

.github/workflows/deploy-lambda.yml

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+name: deploy-web-s3
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - "index.ts"
+      - ".github/workflows/deploy-lambda.yml"
+
+env:
+  LAMBDA_ARN: ${{ vars.LAMBDA_ARN }}
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    environment: production
+    permissions:
+      id-token: write # This is required for requesting the JWT
+      contents: read
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      - name: Configure AWS credentials
+        uses: aws-actions/configure-aws-credentials@v1
+        with:
+          role-to-assume: ${{ secrets.AWS_ROLE_ARN }}
+          aws-region: us-east-1
+
+      - name: Package repository and upload
+        run: |
+          pnpm install
+          pnpm build
+          zip -r function.zip dist node_modules
+
+          aws lambda update-function-code \
+            --function-name $LAMBDA_ARN \ 
+            --zip-file fileb://function.zip \
+            --publish

.gitignore

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+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.js
+
+# testing
+/coverage
+
+# next.js
+/.next/
+/out/
+
+# production
+/build
+/dist
+*.zip
+*.tgz
+
+# misc
+.DS_Store
+*.pem
+.vscode
+
+# debug
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+.pnpm-debug.log*
+
+# env files
+.env
+
+# vercel
+.vercel
+
+# typescript
+*.tsbuildinfo
+next-env.d.ts

index.ts

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+import { APIGatewayProxyHandler } from "aws-lambda";
+import { treeifyError, z, ZodError } from "zod";
+import nodemailer from "nodemailer";
+
+// Define schema
+const ContactEmailSchema = z.object({
+  name: z.string(),
+  email: z.email(),
+  message: z.string(),
+});
+
+// Email utility
+const generateMessageBody = ({
+  name,
+  email,
+  message,
+}: {
+  name: string;
+  email: string;
+  message: string;
+}) => `
+  NAME: ${name}
+  EMAIL: ${email}
+  MESSAGE: "${message}"
+`;
+
+const transport = nodemailer.createTransport({
+  service: "gmail",
+  auth: {
+    user: process.env.NODEMAILER_EMAIL,
+    pass: process.env.NODEMAILER_PASSWORD,
+  },
+});
+
+// Lambda entry point
+export const handler: APIGatewayProxyHandler = async (event) => {
+  try {
+    const body = JSON.parse(event.body || "{}");
+    const parsed = ContactEmailSchema.parse(body);
+
+    await transport.sendMail({
+      to: process.env.NODEMAILER_EMAIL,
+      from: process.env.NODEMAILER_EMAIL,
+      subject: `Contact form submission: ${parsed.name} (${parsed.email})`,
+      text: generateMessageBody(parsed),
+    });
+
+    return {
+      statusCode: 201,
+      body: JSON.stringify({ message: "Email sent" }),
+    };
+  } catch (error) {
+    if (error instanceof ZodError) {
+      return {
+        statusCode: 400,
+        body: JSON.stringify({
+          error: "Invalid parameters provided.",
+          details: treeifyError(error),
+        }),
+      };
+    }
+
+    return {
+      statusCode: 500,
+      body: JSON.stringify({
+        error: "Internal Server Error",
+        details: error instanceof Error ? error.message : "Unknown",
+      }),
+    };
+  }
+};

package.json

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+{
+  "name": "treehouse-technology-contact-email-lambda",
+  "version": "1.0.0",
+  "description": "",
+  "main": "dist/index.js",
+  "files": [
+    "dist"
+  ],
+  "scripts": {
+    "build": "tsc"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "packageManager": "[email protected]+sha512.499434c9d8fdd1a2794ebf4552b3b25c0a633abcee5bb15e7b5de90f32f47b513aca98cd5cfd001c31f0db454bc3804edccd578501e4ca293a6816166bbd9f81",
+  "dependencies": {
+    "nodemailer": "^7.0.5",
+    "zod": "^4.0.14"
+  },
+  "devDependencies": {
+    "@types/aws-lambda": "^8.10.152",
+    "@types/node": "^24.1.0",
+    "@types/nodemailer": "^6.4.17",
+    "typescript": "^5.8.3"
+  },
+  "bundleDependencies": [
+    "nodemailer",
+    "zod"
+  ]
+}

pnpm-lock.yaml

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+{
+  "compilerOptions": {
+    "target": "ES2020",
+    "module": "CommonJS",
+    "esModuleInterop": true,
+    "strict": true,
+    "outDir": "dist"
+  },
+  "include": ["index.ts"]
+}