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@@ -77,7 +77,7 @@
<div id="content-inner">
<aside id="sidebar" role="navigation">
<div class="inner">
<strong class="sidebar-title">Getting Started</strong><a href="intro-to-liquid.html" class="sidebar-link">Intro to Liquid</a><a href="setup.html" class="sidebar-link">Setup</a><a href="options.html" class="sidebar-link">Options</a><a href="render-file.html" class="sidebar-link">Render Files</a><a href="partials-and-layouts.html" class="sidebar-link">Includes and Layouts</a><a href="use-in-expressjs.html" class="sidebar-link current">Use in Express.js</a><strong class="sidebar-title">Advanced</strong><a href="caching.html" class="sidebar-link">Caching</a><a href="register-filters-tags.html" class="sidebar-link">Register Filters/Tags</a><a href="access-scope-in-filters.html" class="sidebar-link">Access Scope in Filters</a><a href="parse-parameters.html" class="sidebar-link">Parse Parameters</a><a href="sync-and-async.html" class="sidebar-link">Sync and Async</a><a href="whitespace-control.html" class="sidebar-link">Whitespace Control</a><a href="plugins.html" class="sidebar-link">Plugins</a><a href="operators.html" class="sidebar-link">Operators</a><a href="truthy-and-falsy.html" class="sidebar-link">Truthy and Falsy</a><strong class="sidebar-title">Miscellaneous</strong><a href="migrate-to-9.html" class="sidebar-link">Migrate to LiquidJS 9</a><a href="changelog.html" class="sidebar-link">Changelog</a><a href="differences.html" class="sidebar-link">Differences with Shopify/liquid</a><a href="contribution-guidelines.html" class="sidebar-link">Contribution Guidelines</a>
<strong class="sidebar-title">Getting Started</strong><a href="intro-to-liquid.html" class="sidebar-link">Intro to Liquid</a><a href="setup.html" class="sidebar-link">Setup</a><a href="options.html" class="sidebar-link">Options</a><a href="render-file.html" class="sidebar-link">Render Files</a><a href="partials-and-layouts.html" class="sidebar-link">Includes and Layouts</a><a href="use-in-expressjs.html" class="sidebar-link current">Use in Express.js</a><strong class="sidebar-title">Advanced</strong><a href="caching.html" class="sidebar-link">Caching</a><a href="register-filters-tags.html" class="sidebar-link">Register Filters/Tags</a><a href="access-scope-in-filters.html" class="sidebar-link">Access Scope in Filters</a><a href="parse-parameters.html" class="sidebar-link">Parse Parameters</a><a href="render-tag-content.html" class="sidebar-link">Render Tag Content</a><a href="sync-and-async.html" class="sidebar-link">Sync and Async</a><a href="whitespace-control.html" class="sidebar-link">Whitespace Control</a><a href="plugins.html" class="sidebar-link">Plugins</a><a href="operators.html" class="sidebar-link">Operators</a><a href="truthy-and-falsy.html" class="sidebar-link">Truthy and Falsy</a><strong class="sidebar-title">Miscellaneous</strong><a href="migrate-to-9.html" class="sidebar-link">Migrate to LiquidJS 9</a><a href="changelog.html" class="sidebar-link">Changelog</a><a href="differences.html" class="sidebar-link">Differences with Shopify/liquid</a><a href="contribution-guidelines.html" class="sidebar-link">Contribution Guidelines</a>
</div>
</aside>
<article class="article-container" itemscope itemtype="http://schema.org/Article">
@@ -92,27 +92,48 @@
</header>
<div class="article-content" itemprop="articleBody">
<p>LiquidJS is compatible to the <a target="_blank" rel="noopener external nofollow noreferrer" href="https://expressjs.com/en/resources/template-engines.html">express template engines</a>. You can set liquidjs instance to the <a target="_blank" rel="noopener external nofollow noreferrer" href="http://expressjs.com/en/guide/using-template-engines.html">view engine</a> option:</p>
<figure class="highlight javascript"><table><tr><td class="code"><pre><span class="line"><span class="keyword">var</span> &#123; Liquid &#125; = <span class="built_in">require</span>(<span class="string">&#x27;liquidjs&#x27;</span>);</span><br><span class="line"><span class="keyword">var</span> engine = <span class="keyword">new</span> Liquid();</span><br><span class="line"></span><br><span class="line"><span class="comment">// register liquid engine</span></span><br><span class="line">app.engine(<span class="string">&#x27;liquid&#x27;</span>, engine.express()); </span><br><span class="line">app.set(<span class="string">&#x27;views&#x27;</span>, <span class="string">&#x27;./views&#x27;</span>); <span class="comment">// specify the views directory</span></span><br><span class="line">app.set(<span class="string">&#x27;view engine&#x27;</span>, <span class="string">&#x27;liquid&#x27;</span>); <span class="comment">// set liquid to default</span></span><br></pre></td></tr></table></figure>
<pre class="line-numbers language-javascript" data-language="javascript"><code class="language-javascript"><span class="token keyword">var</span> <span class="token punctuation">&#123;</span> Liquid <span class="token punctuation">&#125;</span> <span class="token operator">=</span> <span class="token function">require</span><span class="token punctuation">(</span><span class="token string">'liquidjs'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">var</span> engine <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">Liquid</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token comment">// register liquid engine</span>
app<span class="token punctuation">.</span><span class="token function">engine</span><span class="token punctuation">(</span><span class="token string">'liquid'</span><span class="token punctuation">,</span> engine<span class="token punctuation">.</span><span class="token function">express</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
app<span class="token punctuation">.</span><span class="token function">set</span><span class="token punctuation">(</span><span class="token string">'views'</span><span class="token punctuation">,</span> <span class="token string">'./views'</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// specify the views directory</span>
app<span class="token punctuation">.</span><span class="token function">set</span><span class="token punctuation">(</span><span class="token string">'view engine'</span><span class="token punctuation">,</span> <span class="token string">'liquid'</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// set liquid to default</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>
<blockquote class="note info"><strong class="note-title">Working Demo</strong><p>Here’s a working demo for LiquidJS usage in Express.js: <a href="https://github.com/harttle/liquidjs/blob/master/demo/express/" rel="external nofollow noreferrer" target="_blank">liquidjs/demo/express/</a>.</p>
</blockquote>
<h2 id="Template-Lookup" class="article-heading"><a href="#Template-Lookup" class="headerlink" title="Template Lookup"></a>Template Lookup<a class="article-anchor" href="#Template-Lookup" aria-hidden="true"></a></h2><p>The <a href="../api/interfaces/liquid_options_.liquidoptions.html#Optional-root">root</a> option will continue to work as templates root, as you can see in <a href="./render-a-file.html">Render A Template File</a>. Additionally, the <a target="_blank" rel="noopener external nofollow noreferrer" href="http://expressjs.com/en/guide/using-template-engines.html"><code>views</code></a> option in express.js (as shown above) will also be respected. Say you have a template directory like:</p>
<figure class="highlight plaintext"><table><tr><td class="code"><pre><span class="line">.</span><br><span class="line">├── views1/</span><br><span class="line">│ └── hello.liquid</span><br><span class="line">└── views2/</span><br><span class="line"> └── world.liquid</span><br></pre></td></tr></table></figure>
<pre class="line-numbers language-none"><code class="language-none">.
├── views1&#x2F;
│ └── hello.liquid
└── views2&#x2F;
└── world.liquid<span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span></span></code></pre>
<p>And you’re setting template root for liquidjs to <code>views1</code> and expressjs to <code>views2</code>:</p>
<figure class="highlight javascript"><table><tr><td class="code"><pre><span class="line"><span class="keyword">var</span> &#123; Liquid &#125; = <span class="built_in">require</span>(<span class="string">&#x27;liquidjs&#x27;</span>);</span><br><span class="line"><span class="keyword">var</span> engine = <span class="keyword">new</span> Liquid(&#123;</span><br><span class="line"> <span class="attr">root</span>: <span class="string">&#x27;./views1/&#x27;</span></span><br><span class="line">&#125;);</span><br><span class="line"></span><br><span class="line">app.engine(<span class="string">&#x27;liquid&#x27;</span>, engine.express()); </span><br><span class="line">app.set(<span class="string">&#x27;views&#x27;</span>, <span class="string">&#x27;./views2&#x27;</span>); <span class="comment">// specify the views directory</span></span><br><span class="line">app.set(<span class="string">&#x27;view engine&#x27;</span>, <span class="string">&#x27;liquid&#x27;</span>); <span class="comment">// set liquid to default</span></span><br></pre></td></tr></table></figure>
<pre class="line-numbers language-javascript" data-language="javascript"><code class="language-javascript"><span class="token keyword">var</span> <span class="token punctuation">&#123;</span> Liquid <span class="token punctuation">&#125;</span> <span class="token operator">=</span> <span class="token function">require</span><span class="token punctuation">(</span><span class="token string">'liquidjs'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">var</span> engine <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">Liquid</span><span class="token punctuation">(</span><span class="token punctuation">&#123;</span>
root<span class="token operator">:</span> <span class="token string">'./views1/'</span>
<span class="token punctuation">&#125;</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
app<span class="token punctuation">.</span><span class="token function">engine</span><span class="token punctuation">(</span><span class="token string">'liquid'</span><span class="token punctuation">,</span> engine<span class="token punctuation">.</span><span class="token function">express</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
app<span class="token punctuation">.</span><span class="token function">set</span><span class="token punctuation">(</span><span class="token string">'views'</span><span class="token punctuation">,</span> <span class="token string">'./views2'</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// specify the views directory</span>
app<span class="token punctuation">.</span><span class="token function">set</span><span class="token punctuation">(</span><span class="token string">'view engine'</span><span class="token punctuation">,</span> <span class="token string">'liquid'</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// set liquid to default</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>
<p>Both of <code>hello.liquid</code> and <code>world.liquid</code> can be resolved and rendered:</p>
<figure class="highlight javascript"><table><tr><td class="code"><pre><span class="line">res.render(<span class="string">&#x27;hello&#x27;</span>)</span><br><span class="line">res.render(<span class="string">&#x27;world&#x27;</span>)</span><br></pre></td></tr></table></figure>
<pre class="line-numbers language-javascript" data-language="javascript"><code class="language-javascript">res<span class="token punctuation">.</span><span class="token function">render</span><span class="token punctuation">(</span><span class="token string">'hello'</span><span class="token punctuation">)</span>
res<span class="token punctuation">.</span><span class="token function">render</span><span class="token punctuation">(</span><span class="token string">'world'</span><span class="token punctuation">)</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span></span></code></pre>
<h2 id="Caching" class="article-heading"><a href="#Caching" class="headerlink" title="Caching"></a>Caching<a class="article-anchor" href="#Caching" aria-hidden="true"></a></h2><p>Simply setting the <a href="../api/interfaces/liquid_options_.liquidoptions.html#Optional-cache">cache option</a> to true will enable template caching, as explained in <a href="./caching.html">Caching</a>. It’s recommended to enable cache in production environment, which can be done by:</p>
<figure class="highlight javascript"><table><tr><td class="code"><pre><span class="line"><span class="keyword">var</span> &#123; Liquid &#125; = <span class="built_in">require</span>(<span class="string">&#x27;liquidjs&#x27;</span>);</span><br><span class="line"><span class="keyword">var</span> engine = <span class="keyword">new</span> Liquid(&#123;</span><br><span class="line"> <span class="attr">cache</span>: process.env.NODE_ENV === <span class="string">&#x27;production&#x27;</span></span><br><span class="line">&#125;);</span><br></pre></td></tr></table></figure>
<pre class="line-numbers language-javascript" data-language="javascript"><code class="language-javascript"><span class="token keyword">var</span> <span class="token punctuation">&#123;</span> Liquid <span class="token punctuation">&#125;</span> <span class="token operator">=</span> <span class="token function">require</span><span class="token punctuation">(</span><span class="token string">'liquidjs'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">var</span> engine <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">Liquid</span><span class="token punctuation">(</span><span class="token punctuation">&#123;</span>
cache<span class="token operator">:</span> process<span class="token punctuation">.</span>env<span class="token punctuation">.</span><span class="token constant">NODE_ENV</span> <span class="token operator">===</span> <span class="token string">'production'</span>
<span class="token punctuation">&#125;</span><span class="token punctuation">)</span><span class="token punctuation">;</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span></span></code></pre>
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<strong class="mobile-nav-title">Getting Started</strong><a href="intro-to-liquid.html" class="mobile-nav-link">Intro to Liquid</a><a href="setup.html" class="mobile-nav-link">Setup</a><a href="options.html" class="mobile-nav-link">Options</a><a href="render-file.html" class="mobile-nav-link">Render Files</a><a href="partials-and-layouts.html" class="mobile-nav-link">Includes and Layouts</a><a href="use-in-expressjs.html" class="mobile-nav-link current">Use in Express.js</a><strong class="mobile-nav-title">Advanced</strong><a href="caching.html" class="mobile-nav-link">Caching</a><a href="register-filters-tags.html" class="mobile-nav-link">Register Filters/Tags</a><a href="access-scope-in-filters.html" class="mobile-nav-link">Access Scope in Filters</a><a href="parse-parameters.html" class="mobile-nav-link">Parse Parameters</a><a href="sync-and-async.html" class="mobile-nav-link">Sync and Async</a><a href="whitespace-control.html" class="mobile-nav-link">Whitespace Control</a><a href="plugins.html" class="mobile-nav-link">Plugins</a><a href="operators.html" class="mobile-nav-link">Operators</a><a href="truthy-and-falsy.html" class="mobile-nav-link">Truthy and Falsy</a><strong class="mobile-nav-title">Miscellaneous</strong><a href="migrate-to-9.html" class="mobile-nav-link">Migrate to LiquidJS 9</a><a href="changelog.html" class="mobile-nav-link">Changelog</a><a href="differences.html" class="mobile-nav-link">Differences with Shopify/liquid</a><a href="contribution-guidelines.html" class="mobile-nav-link">Contribution Guidelines</a>
<strong class="mobile-nav-title">Getting Started</strong><a href="intro-to-liquid.html" class="mobile-nav-link">Intro to Liquid</a><a href="setup.html" class="mobile-nav-link">Setup</a><a href="options.html" class="mobile-nav-link">Options</a><a href="render-file.html" class="mobile-nav-link">Render Files</a><a href="partials-and-layouts.html" class="mobile-nav-link">Includes and Layouts</a><a href="use-in-expressjs.html" class="mobile-nav-link current">Use in Express.js</a><strong class="mobile-nav-title">Advanced</strong><a href="caching.html" class="mobile-nav-link">Caching</a><a href="register-filters-tags.html" class="mobile-nav-link">Register Filters/Tags</a><a href="access-scope-in-filters.html" class="mobile-nav-link">Access Scope in Filters</a><a href="parse-parameters.html" class="mobile-nav-link">Parse Parameters</a><a href="render-tag-content.html" class="mobile-nav-link">Render Tag Content</a><a href="sync-and-async.html" class="mobile-nav-link">Sync and Async</a><a href="whitespace-control.html" class="mobile-nav-link">Whitespace Control</a><a href="plugins.html" class="mobile-nav-link">Plugins</a><a href="operators.html" class="mobile-nav-link">Operators</a><a href="truthy-and-falsy.html" class="mobile-nav-link">Truthy and Falsy</a><strong class="mobile-nav-title">Miscellaneous</strong><a href="migrate-to-9.html" class="mobile-nav-link">Migrate to LiquidJS 9</a><a href="changelog.html" class="mobile-nav-link">Changelog</a><a href="differences.html" class="mobile-nav-link">Differences with Shopify/liquid</a><a href="contribution-guidelines.html" class="mobile-nav-link">Contribution Guidelines</a>
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