handle no-html edge case gracefully, update README

README.md

@@ -57,7 +57,7 @@ The first command will build the source of your application. The second command
 
 ## Configure Receiving Rule in SES
 
-**As mentioned above, you must already have an SES-verified domain in `us-east-1` before you can set up a Receiving Rule for that domain. See [AWS's SES documentation for details on verifying a domain](https://docs.aws.amazon.com/ses/latest/DeveloperGuide/receiving-email-getting-started-verify.html). 
+**As mentioned above, you must already have an SES-verified domain in `us-east-1` before you can set up a Receiving Rule for that domain. See [AWS's SES documentation for details on verifying a domain](https://docs.aws.amazon.com/ses/latest/DeveloperGuide/receiving-email-getting-started-verify.html).** 
 
 After the Cloudformation application stack is successfully deployed, do the following:
 1. Log into your AWS console and open your SES configuration home page

src/handlers/ses-email-forwarding.js

@@ -11,22 +11,14 @@ exports.handler = async (event, context) => {
 
     const file = await s3.getObject({Bucket: bucket, Key: object}).promise();
     const parsed = await simpleParser(file.Body);
+    const bodyObject = makeBodyObject(parsed);
 
     const forwardingParams = {
       Destination: {
         ToAddresses: [process.env.FORWARD_ADDRESS]
       }, 
       Message: {
-        Body: {
-          Html: {
-            Charset: "UTF-8",
-            Data: parsed.html
-          },
-          Text: {
-            Charset: "UTF-8",
-            Data: parsed.text
-          }
-        },
+        Body: bodyObject,
         Subject: {
           Charset: "UTF-8",
           Data: `to: ${parsed.to.text} sub: ${parsed.subject}`
@@ -47,6 +39,28 @@ exports.handler = async (event, context) => {
   return;
 };
 
+function makeBodyObject(parsedEmail) {
+  let body = {};
+
+  if (parsedEmail.html) {
+    bodyObject = {
+      Html: {
+        Charset: "UTF-8",
+        Data: `${parsedEmail.html}`
+      }
+    };
+  } else {
+    bodyObject = {
+      Text: {
+        Charset: "UTF-8",
+        Data: `${parsedEmail.text}`
+      }
+    };
+  }
+
+  return bodyObject;
+}
+
 async function sendEmail(params) {
   return new Promise ((resolve, reject) => {
     ses.sendEmail(params, function(err, data) {