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less than a minute read • Updated a month ago

Twig tags, filters, and functions reference

Reference for the Twig tags, filters, and functions available in Foxy templates, including custom filters and functions like money_format and generate_sso_token.

Allowed Twig functionality

Only the following built-in Twig functionality is available in Foxy templates:

  • Tags: block, embed, if, import, include, for, macro, set

  • Filters: abs, capitalize, date, date_modify, default, escape, first, join, json_encode, keys, last, length, lower, merge, nl2br, number_format, round, slice, split, raw, replace, reverse, title, trim, upper, url_encode

  • Functions: block, date, random, template_from_string, min, max

Contact support if you need a tag, filter, or function that isn’t listed here.

Custom filters

Filter

Description

Example

money_format

Formats a number using the store’s currency formatting.

{{ total_item_price|money_format }}

pad

Pads a value to a given length. Parameters: length (default 30), pad string (default " "), delimiter (default ":"), direction "left" or "right" (default "right").

{{ key|pad(20) }} or {{ key|pad(30, "-", "", "left") }}

fc_output_data

Used to customize email subjects, from, and bcc addresses.

—

Custom functions

Function

Description

Example

selected

Adds the selected attribute to a dropdown option. Takes two strings to compare.

<option value="{{ value }}" {{ selected(saved_value, value) }}>

checked

Adds the checked attribute to a checkbox or radio input. Takes a boolean.

<input type="checkbox" name="my_checkbox" value="1" {{ checked(my_checkbox == '1') }} />

formatCityOption

Returns a formatted city/state string. Takes an object with city, and optionally region and region_name.

{{ formatCityOption({"city": "Nashville", "region": "TN", "region_name": "Tennessee"}) }}

getPostalCodeLabel

Returns the correct language string for a country’s state or postal code field. Takes a 2-character country code.

{{ getPostalCodeLabel(address.country) }}

generate_sso_token

Generates an SSO token for quick purchases from the receipt or reverse SSO logins. Only runs server-side — not available in client-side Twig.js.

{{ generate_sso_token(timestamp) }}

Notes

  • Use raw with caution, and never on user-supplied fields — it can introduce security vulnerabilities. Contact support to review your customizations if you’re unsure.

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