How to implement twitter cards for launch.ly

launch.ly twitter cards snippet

{% if items.size == 1 %}

	{% if item.product? %}
		<!-- twitter product card -->
		<meta name="twitter:card" content="product">		
		<meta name="twitter:label1" content="Price">
		<meta name="twitter:data1" content="{{ item.variants.first.price | currency_clean }}">		
		<meta name="twitter:label2" content="{{ item.variants.first.name_a }}">
		<meta name="twitter:data2" content="{{ item.variants.first.name_b }}">				
	{% else %}

		{% unless item.images? %}
			<!-- twitter summary card -->
			<meta name="twitter:card" content="summary">
		{% else %}
			<!-- twitter summary card with large image -->
			<meta name="twitter:card" content="summary_large_image">	
		{% endunless %}

	{% endif %}

	<meta name="twitter:title" content="{{ item.contents.first.title }}">
	<meta name="twitter:description" content="{{ item.contents.first.teaser }}">
	<meta name="twitter:site" content="@MelbourneSystem">
	<meta name="twitter:creator" content="@MelbourneSystem">
	<meta name="twitter:domain" content="{{ account.domain }}">
	<meta name="twitter:url" value="{{ item.url }}">
	
	{% if item.images? %}
		<meta name="twitter:image" content="{{ item.hero_image.column_12 | secure_asset_url }}">
	{% endif %}

{% endif %}