Add frontend, backend and CLI

backend/src/helpers/nodemailer.ts

@@ -0,0 +1,58 @@
+import fs from 'fs';
+import path from 'path';
+import handlebars from 'handlebars';
+import nodemailer from 'nodemailer';
+import { SMTP_HOST, SMTP_NAME, SMTP_USERNAME, SMTP_PASSWORD } from '../config';
+
+// create nodemailer transporter
+const transporter = nodemailer.createTransport({
+	host: SMTP_HOST,
+	port: 587,
+	auth: {
+		user: SMTP_USERNAME,
+		pass: SMTP_PASSWORD
+	}
+});
+transporter
+	.verify()
+	.then(() => console.log('SMTP - Successfully connected'))
+	.catch((err) => console.log('SMTP - Failed to connect'));
+
+/**
+ * @param {Object} obj
+ * @param {String} obj.template - email template to use from /templates folder (e.g. testEmail.handlebars)
+ * @param {String[]} obj.subjectLine - email subject line
+ * @param {String[]} obj.recipients - email addresses of people to send email to
+ * @param {Object} obj.substitutions - object containing template substitutions
+ */
+const sendMail = async ({
+	template,
+	subjectLine,
+	recipients,
+	substitutions
+}: {
+	template: string;
+	subjectLine: string;
+	recipients: string[];
+	substitutions: any;
+}) => {
+	try {
+		const html = fs.readFileSync(
+			path.resolve(__dirname, '../templates/' + template),
+			'utf8'
+		);
+		const temp = handlebars.compile(html);
+		const htmlToSend = temp(substitutions);
+
+		await transporter.sendMail({
+			from: `"${SMTP_NAME}" <${SMTP_USERNAME}>`,
+			to: recipients.join(', '),
+			subject: subjectLine,
+			html: htmlToSend
+		});
+	} catch (err) {
+		console.error(err);
+	}
+};
+
+export { sendMail };