adding 'replyTo' support.

Author: Sachin Maheshwari

connect/connectEmailServer.js

@@ -26,7 +26,8 @@ const handler = (topic, message, callback) => {
     return callback(null, { success: false, error: `Template not found for topic ${topic}` });
   }
 
-  service.sendEmail(templateId, message.recipients, message.data).then(() => {
+  const replyTo = message.replyTo ? message.replyTo : config.EMAIL_FROM;
+  service.sendEmail(templateId, message.recipients, message.data, replyTo).then(() => {
     callback(null, { success: true });
   }).catch((err) => {
     callback(null, { success: false, error: err });

connect/service.js

@@ -9,13 +9,14 @@ const config = require('config');
 // set api key for SendGrid email client
 sgMail.setApiKey(config.SENDGRID_API_KEY);
 
-const sendEmail = (templateId, to, substitutions) => // send email
+const sendEmail = (templateId, to, substitutions, replyTo) => // send email
   sgMail.send({
     to,
     templateId,
     substitutions,
     from: config.EMAIL_FROM,
     substitutionWrappers: ['{{', '}}'],
+    replyTo,
   });
 
 module.exports = {

test/emailServiceTest.js

@@ -24,6 +24,7 @@ const defaultHandler = (topic, message, callback) => {
   }
 
   // send email
+  const replyTo = message.replyTo ? message.replyTo : config.EMAIL_FROM;
   service.sendEmail(templateId, message.recipients, message.data).then(() => {
     callback(null, { success: true });
     finish(null);