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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>JSDoc: Class: Resource</title>
<script src="scripts/prettify/prettify.js"> </script>
<script src="scripts/prettify/lang-css.js"> </script>
<!--[if lt IE 9]>
<script src="//html5shiv.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
<link type="text/css" rel="stylesheet" href="styles/prettify-tomorrow.css">
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</head>
<body>
<div id="main">
<h1 class="page-title">Class: Resource</h1>
<section>
<header>
<h2><span class="attribs"><span class="type-signature"></span></span>Resource<span class="signature">(name, handlerFn, componentContext<span class="signature-attributes">opt</span>, options<span class="signature-attributes">opt</span>)</span><span class="type-signature"></span></h2>
<div class="class-description"><p>A reactive resource that evaluates a handler function asynchronously.
Supports Suspense and Error Boundaries by throwing Promises/Errors during render.</p></div>
</header>
<article>
<div class="container-overview">
<h2>Constructor</h2>
<h4 class="name" id="Resource"><span class="type-signature"></span>new Resource<span class="signature">(name, handlerFn, componentContext<span class="signature-attributes">opt</span>, options<span class="signature-attributes">opt</span>)</span><span class="type-signature"></span></h4>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Attributes</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>name</code></td>
<td class="type">
<span class="param-type">string</span>
</td>
<td class="attributes">
</td>
<td class="description last"><p>Resource name.</p></td>
</tr>
<tr>
<td class="name"><code>handlerFn</code></td>
<td class="type">
<span class="param-type">function</span>
</td>
<td class="attributes">
</td>
<td class="description last"><p>The function to execute (e.g., fetch call).</p></td>
</tr>
<tr>
<td class="name"><code>componentContext</code></td>
<td class="type">
<span class="param-type">object</span>
</td>
<td class="attributes">
<optional><br>
</td>
<td class="description last"><p>The component instance context.</p></td>
</tr>
<tr>
<td class="name"><code>options</code></td>
<td class="type">
<span class="param-type">object</span>
</td>
<td class="attributes">
<optional><br>
</td>
<td class="description last"><p>Resource options (e.g., pollInterval).</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="lib_core_reactive_Resource.js.html">lib/core/reactive/Resource.js</a>, <a href="lib_core_reactive_Resource.js.html#line13">line 13</a>
</li></ul></dd>
</dl>
</div>
<h3 class="subsection-title">Classes</h3>
<dl>
<dt><a href="Resource.html">Resource</a></dt>
<dd></dd>
</dl>
<h3 class="subsection-title">Members</h3>
<h4 class="name" id="loading"><span class="type-signature"></span>loading<span class="type-signature"></span></h4>
<div class="description">
<p>Indicates whether the resource is currently pending.</p>
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="lib_core_reactive_Resource.js.html">lib/core/reactive/Resource.js</a>, <a href="lib_core_reactive_Resource.js.html#line102">line 102</a>
</li></ul></dd>
</dl>
<h4 class="name" id="traceRequest"><span class="type-signature"></span>traceRequest<span class="type-signature"> :object|null</span></h4>
<div class="description">
<p>The trace node for the request currently in flight, so its settlement can
point back at it.</p>
</div>
<h5>Type:</h5>
<ul>
<li>
<span class="param-type">object</span>
|
<span class="param-type">null</span>
</li>
</ul>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="lib_core_reactive_Resource.js.html">lib/core/reactive/Resource.js</a>, <a href="lib_core_reactive_Resource.js.html#line56">line 56</a>
</li></ul></dd>
</dl>
<h3 class="subsection-title">Methods</h3>
<h4 class="name" id="fetch"><span class="type-signature"></span>fetch<span class="signature">(result)</span><span class="type-signature"> → {Promise:<a href="module-lib_core_runtime_ComponentScope.ComponentScope.html"></a>.<any:<a href="module-lib_core_runtime_ComponentScope.ComponentScope.html"></a>>}</span></h4>
<div class="description">
<p>Evaluates the resource result and updates internal state with request ID guard.</p>
</div>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>result</code></td>
<td class="type">
<span class="param-type">any</span>
</td>
<td class="description last"><p>The result from the handler (Promise or sync value).</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="lib_core_reactive_Resource.js.html">lib/core/reactive/Resource.js</a>, <a href="lib_core_reactive_Resource.js.html#line140">line 140</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">Promise:<a href="module-lib_core_runtime_ComponentScope.ComponentScope.html"></a>.<any:<a href="module-lib_core_runtime_ComponentScope.ComponentScope.html"></a>></span>
</dd>
</dl>
<h4 class="name" id="mutate"><span class="type-signature"></span>mutate<span class="signature">(nextValue)</span><span class="type-signature"></span></h4>
<div class="description">
<p>Imperatively sets the local value without a network call (useful for optimistic UI).</p>
</div>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>nextValue</code></td>
<td class="type">
<span class="param-type">any</span>
</td>
<td class="description last"></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="lib_core_reactive_Resource.js.html">lib/core/reactive/Resource.js</a>, <a href="lib_core_reactive_Resource.js.html#line204">line 204</a>
</li></ul></dd>
</dl>
<h4 class="name" id="read"><span class="type-signature"></span>read<span class="signature">()</span><span class="type-signature"> → {any}</span></h4>
<div class="description">
<p>Reads the resource value.
Throws Promise if pending (Suspense).
Throws Error if rejected (ErrorBoundary).
Returns value if resolved.</p>
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="lib_core_reactive_Resource.js.html">lib/core/reactive/Resource.js</a>, <a href="lib_core_reactive_Resource.js.html#line227">line 227</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">any</span>
</dd>
</dl>
<h4 class="name" id="refetch"><span class="type-signature"></span>refetch<span class="signature">()</span><span class="type-signature"> → {Promise:<a href="module-lib_core_runtime_ComponentScope.ComponentScope.html"></a>.<any:<a href="module-lib_core_runtime_ComponentScope.ComponentScope.html"></a>>}</span></h4>
<div class="description">
<p>Imperatively triggers a re-fetch, bypassing watcher dependency updates.</p>
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="lib_core_reactive_Resource.js.html">lib/core/reactive/Resource.js</a>, <a href="lib_core_reactive_Resource.js.html#line195">line 195</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">Promise:<a href="module-lib_core_runtime_ComponentScope.ComponentScope.html"></a>.<any:<a href="module-lib_core_runtime_ComponentScope.ComponentScope.html"></a>></span>
</dd>
</dl>
<h4 class="name" id="teardown"><span class="type-signature"></span>teardown<span class="signature">()</span><span class="type-signature"></span></h4>
<div class="description">
<p>Cleans up the watcher, aborts pending in-flight requests, and clears the polling timer.</p>
</div>
<dl class="details">