Dynamic Email Template

Simple variable replacement can be achieved using the following syntax.

{
  "variables": [{
    "name": "firstName",
    "value": "John"
   }, {
   "name": "image",
   "value": "http://domain.com/image.gif"
  }, {
  "name": "link",
  "value": "https://smartsender.io"
 }]
}

<h1>Hi {{ firstName }},</h1>
 <img src="{{ image }}">
 <a href="{{ link }}">
 Go to SmartSender
</a>

Hello John
       Go to SmartSender

Conditional syntax can be used to include/exclude email content based on data passed into API calls or stored in contact list.

{"variables": [ {
   "name":   "paidCustomer",
   "value":  false
  }, {
  "name":   "signupType",
  "value":  "referral"
 }],

{% if paidCustomer %}
  Thanks for being a customer!
  {% else %}
  Sign up today and get 30% off!
  {% endif %}

  {% if signupType == 'referral' %}
  <a href="https://smartsender.io">Refer your friends!</a>
 {% endif %}

Sign up today and get 30% off!
 Refer your friends!

Most of your HTML needs can be met in our template editor. If you are using user-generated HTML and you need to pass raw HTML as a variable, you’ll need to escape it with Twig raw filters or autoescape tags.

{"variables": [ {
   "name":   "message",
   "value":  "<h4>Hello</h4><p>World</p>"
  }],

{{ message|raw }}
   <a href="https://smartsender.io">
  </a>

Hello World
   Go to SmartSender
  

The following example illustrates how the round and format filters can be used to display numbers.

{"variables": [ {
   "name":   "price",
   "value":  9800.333
  }]

<h4>Numbers:<h4>
   <ul>
   <li>{{ price|round }}</li>
   <li>{{ price|round(1, 'floor') }}</li>
   <li>{{ price|number_format(2, '.', ',') }}</li>
   <li>{{ price|number_format(0, '.') }}</li> 
   <li>{{ "$%.2f"|format(price) }}</li> 
  </ul>

   
Numbers:
   9800 
   9800.3 
   9,800.33 
   9 800 
  $9800.33

The following example illustrates how to use Twig filters to achieve date formatting of both timestamps and ISO 8601 date strings.

{"variables": [ {
   "name":   "timestamp",
   "value":  "1539377301"
  },{
  "name":   "isoDate",
  "value":  "2016-04-29T15:47:28+02:00"
 },]

<h4>Flexible date formating</h4>
  <p>Current date: {{ "now"|date("m/d/Y") }}</p>
  <p>isoDate: {{ isoDate|date("D, F y") }}</p>
  <p>timeStamp to custom:<
 {{ timestamp|date('g:ia \o\n l jS F Y') }} </p>

Flexible date formating
  Current date: 10/12/2018 
  isoDate: Fri, April 16 
 timeStamp to custom: 8:48pm 2018 Friday 12th October 2018