fix: support templates w/o data

Author: moshfeu

content/email_templates/show.js

@@ -14,7 +14,7 @@ app.get('/:templateName', function (req, res) {
   if (templateName.includes('.')) return;
   const {data} = req.query;
   const template = fs.readFileSync(`content/email_templates/${templateName}.html`, {encoding: 'utf8'});
-  const content = injectData(layout.replace('$$$Content$$$', template), JSON.parse(data));
+  const content = injectData(layout.replace('$$$Content$$$', template), JSON.parse(data || '{}'));
   res.send(content);
 });
 

src/modules/email/email.service.ts

@@ -46,7 +46,7 @@ export class EmailService {
   }
 
   async sendLocalTemplate(params: EmailParams) {
-    const { to, subject, data, name } = params;
+    const { to, subject, data = {}, name } = params;
     const content = await this.injectData(name, data);
     try {
       await sgMail.send({