Liquid templates

Liquid Templates significantly broaden Pushwoosh’s personalization capabilities by implementing sophisticated logic in addition to regular Dynamic Content usage.

Message personalization in Pushwoosh is based on Tags (user data). Pushwoosh offers a variety of default Tags and custom Tags. Using them, you can specify user’s first name, city, purchase history, etc. to send a more personalized message, for example: Hi {First_name}, thanks for ordering {item}.

Liquid templates add more logic to dynamic content. For instance, if a user’s subscription tag contains “free,” you can send them a message: “Grab your 10% discount.”

Modifying the message content according to users’ IDs, behaviors, and preferences is the most efficient way to increase relevance and get more impressive results from your marketing campaigns.

Syntax

Content templates based on Liquid by Shopify use a combination of tags, objects, and filters to load dynamic content. Content templates allow to access certain variables from within a template and output their data without having to know anything about the data itself.

Note

To learn more about the syntax, please refer to Liquid documentation.

Objects

objects define the content that will be displayed to a user. objects should be enclosed in double curly braces: {{ }}

For example, when personalizing a message, send {{Name}} in its body to add the users’ names to the message’s content. The user’s name (Name tag value) will replace the Liquid object in a message the user will see.

Input	Output
Hi {{Name}}! We’re glad you’re back!	Hi Anna! We’re glad you’re back!

Tags

tags create the logic and control flow for templates. The curly brace percentage delimiters {% and %} and the text that they surround do not produce any visible output when the template is rendered. This lets you assign variables and create conditions or loops without showing any of the Liquid logic to a user.

For example, using the if tag, you can vary the message’s language based on what language is set on user’s device:

Input

{% if Language == 'fr' %}
Salut!
{% else %}
Hello!
{% endif %}

Output (fr): Salut!

Output (es): Hello!

Tags operators

Operator	Description
==	equals
!=	does not equal
>	greater than
<	less than
>=	greater than or equal to
<=	less than or equal to
or	logical or
and	logical and
contains	checks for the presence of a substring inside a string or array of strings

Note

In tags with more than one and or or operator, operators are checked in order from right to left. You cannot change the order of operations using parentheses — parentheses are invalid characters in Liquid and will prevent your tags from working.

Filters

filters modify the output of a Liquid object or variable. They are used within double curly braces {{ }} and variable assignment, and are separated by a pipe character |. Multiple filters can be used on one output, and are applied from left to right.

Input	Output
{{ Name | capitalize | prepend:"Hello " }}	Hello Anna

Connected content

Connected Content is a feature in Liquid templates that allows you to dynamically retrieve and use data from an external source, such as a web service, directly within your email or push notification templates. This feature enables real-time personalization by fetching JSON data from a specified URL and saving it to a variable that can be utilized in your content.

Syntax

{% connected_content url :save result %}

• url: The URL from which to fetch the data.
• :save: A directive indicating where the fetched JSON should be saved.
• result: The name of the variable to store the fetched JSON.

Once the data is fetched and stored in the specified variable, you can use this variable in the content of your template.

Example usage

Consider a scenario where you have a coupon service that returns a JSON response with a coupon code. The service returns the following JSON:

{
    "code": "coupon code"
}

You can fetch the coupon code and use it in your template as follows:

{% connected_content https://example.com/couponwebservice.json :save result %}

Your coupon code is {% result.code %}

Important

If the service returns a status other than HTTP 200 OK, the email or push notification will not be sent. This ensures that your communication only goes out if the necessary data is successfully retrieved.

Using Liquid Templates in messages sent via API

Use the Liquid syntax in your createMessage requests to implement Liquid Templates. Templates are available for the “content” parameter of createMessage request, as well as for any other parameter supporting Dynamic Content, in particular, platform-specific “title”, “subtitle”, and “image” params.

By using content templates, you can either specify the data in your API requests (passing the “template_bindings” parameter) or get the data from Tag values stored on users’ devices (by not using the “template_bindings” parameter). This way, you’re able to build user-based push campaigns containing the extremely relevant content.

Note

Please note, that unlike Dynamic Content, the variables in templates should be enclosed into double curly braces as follows: {{myVariable}}.

To define the template logic using the Tags with spaces in their names, use the following technique:

Example

{% capture my_tag %}{{My Tag}}{% endcapture %}
{% if my_tag == 'value' %}
Content to send in this case
{% else %}
Content to send otherwise
{% endif %}

Liquid Templates use cases

Here you’ll find several use cases when Liquid Templates come in handy.

Multi-language push

Liquid Templates make it possible to definitely specify in what language should users receive your push messages. Look at the simple example of the API request and the message received depending on template bindings used in the request.

Liquid input

{% if Language == 'es' %}
¡Hola!
{% else %}
Hello!
{% endif %}

API request

{
  "request": {
    "application": "XXXXX-XXXXX", // Pushwoosh app code
    "auth": "yxoPUlw.....IyEX4H", // API access token from Pushwoosh Control Panel
    "notifications" : [ // push message parameters
      {
       "content": "{% raw %}
{% if language == 'es' %}¡Hola!{% else %}hello!{% endif %}
{% endraw %}",
        "template_bindings": { // optional. When no template_bindings are passed in a request, Tag values from the device are used.
         "language" : "es"
        }
      }
    ]
  }
}

Language is ‘es’: ¡Hola!

Language is ‘en’: Hello!

Subscription upgrade prompt

Encourage your customers to upgrade their subscription based on their current plan.

Liquid input

{% if Subscription == 'Basic' %}
    Upgrade to Silver for getting more product features and 24/7 support.
{% elsif Subscription == 'Silver' %}
    Upgrade to Gold for priority support and advanced features.
{% else %}
    Please contact your manager to renew your subscription.
{% endif %}

API request

{
  "request": {
    "application": "XXXXX-XXXXX", // Pushwoosh app code
    "auth": "yxoPUlw.....IyEX4H", // API access token from Pushwoosh Control Panel
    "notifications" : [ // push message parameters
      {
       "content": "{% raw %}
{% if Subscription == 'Basic' %}Upgrade to Silver for getting more product features and 24/7 support.{% elsif Subscription == 'Silver' %}Upgrade to Gold for priority support and advanced features.{% else %}Please contact your manager to renew your subscription. {% endif %}
{% endraw %}",
        "template_bindings": { // optional. When no template_bindings are passed in a request, Tag values from the device are used.
         "language" : "es"
        }
      }
    ]
  }
}

Output
For users with Basic subscription plan: Upgrade to Silver for getting more product features and 24/7 support.
For users with Silver subscription plan: Upgrade to Gold for priority support and advanced features.
For users with plans other than Basic or Silver: Please contact your manager to renew your subscription.

List tags

Content templates are quite helpful to handle Tags of a List type.

Variable size

One of the possible use cases is to deliver different content depending on the number of values the Tag contains. For example, you can provide different discounts to customers with different behaviors. Let’s say the customer has some items in their WishList - encourage them to purchase with the most fitting discount based on how many products they’re going to buy!

Liquid input

{% if WishList.size >= 3 %}
    Get 20% off your next purchase!
{% elsif WishList.size == 2 %}
    Get a 10% discount on your next purchase!
{% else %}
    Hey, take a look at new outwears!
{% endif %}

API request

{
  "request": {
    "application": "XXXXX-XXXXX", // Pushwoosh app code
    "auth": "yxoPUlw.....IyEX4H", // API access token from Pushwoosh Control Panel
    "notifications" : [ // push message parameters
      {
       "content": "{% raw %}
{% if WishList.size >= 3 %}Get 20% off your next purchase!{% elsif WishList.size == 2 %}Get a 10% discount on your next purchase!{% else %}Hey, take a look at new outwears!{% endif %}
{% endraw %}",
        "template_bindings": { // optional. When no template_bindings are passed in a request, Tag values from the device are used.
         "WishList" : ["Skinny Low Ankle Jeans", "Linen Trenchcoat", "High Waisted Denim Skirt", "Strappy Tiered Maxi Dress"]
        }
      }
    ]
  }
}

WishList size >= 3
WishList size = 2

Variable contains

One more case you might need to cover is to deal with List Tags values and deliver the most relevant content based on what values the Tag contains.

Liquid input

{% if WishList contains 'Skinny Low Ankle Jeans' %}
    Get 20% off products in your wishlist!
{% else %}
    Hey, take a look at the brand new Skinny Low Ankle Jeans!
{% endif %}

API request

{
  "request": {
    "application": "C90C0-0E786",
    "auth": "yxoPUlw.....IyEX4H", // API access token from Pushwoosh Control Panel
    "notifications" : [ // push message parameters
      {
       "content": "{% raw %}
{% if WishList contains 'Skinny Low Ankle Jeans' %}Get 20% off your next purchase!{% else %}Hey, take a look at the brand new Skinny Low Ankle Jeans!{% endif %}
{% endraw %}",
        "template_bindings": { // optional. When no template_bindings are passed in a request, Tag values from the device are used.
         "WishList" : ["Skinny Low Ankle Jeans", "Linen Trenchcoat", "High Waisted Denim Skirt", "Strappy Tiered Maxi Dress"]
        }
      }
    ]
  }
}

Variable contains data
Variable does not contain data

Plurals

By using the content templates, you’re able to adjust messages content according to users’ behavior. For example, you can modify the message text to contain plural words in case the List Tag contains more than one value.

Liquid input

    Get 20% off item
{% if WishList.size > 1 %}
    s in your WishList!
{% else %}
    in your Wishlist!
{% endif %}

API request

{
  "request": {
    "application": "C90C0-0E786",
    "auth": "yxoPUlw.....IyEX4H", // API access token from Pushwoosh Control Panel
    "notifications" : [ // push message parameters
      {
       "content": "Get 20% off item{% raw %}
{% if WishList.size > 1 %}s in your WishList!{% else %} in your Wishlist!{% endif %}
{% endraw %}",
        "template_bindings": { // optional. When no template_bindings are passed in a request, Tag values from the device are used.
         "WishList" : ["Skinny Low Ankle Jeans", "Linen Trenchcoat", "High Waisted Denim Skirt", "Strappy Tiered Maxi Dress"]
        }
      }
    ]
  }
}

Plural
Singular

Timezone

Template for timezones converts the date and time according to the timezone specified.

Liquid input

{{ MyDate | timezone: MyTimezone | date: \"%Y-%m-%d %H:%M\" }}

API request

Example

{
  "request" : {
    "auth" : "3H9bk8w3.....Acge2RbupTB", // API access token from Pushwoosh Control Panel
    "application" : "XXXXX-XXXXX", // Pushwoosh app code
    "notifications" : [ // push message parameters
      {
        "content": "Current Date: {{ MyDate | timezone: MyTimezone | date: \"%Y-%m-%d %H:%M\" }}",
        "template_bindings": { // optional. When no template_bindings are passed in a request, Tag values from the device are used.
         "MyDate" : "2019-07-23 15:00",
         "MyTimezone" : "Asia/Dubai"
        }
      }
    ]
  }
}

Output