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| <html class="default" lang="en" data-base=".."><head><meta charset="utf-8"/><meta http-equiv="x-ua-compatible" content="IE=edge"/><title>beginContext | agent-swarm-kit</title><meta name="description" content="Documentation for agent-swarm-kit"/><meta name="viewport" content="width=device-width, initial-scale=1"/><link rel="stylesheet" href="../assets/style.css"/><link rel="stylesheet" href="../assets/highlight.css"/><script defer src="../assets/main.js"></script><script async src="../assets/icons.js" id="tsd-icons-script"></script><script async src="../assets/search.js" id="tsd-search-script"></script><script async src="../assets/navigation.js" id="tsd-nav-script"></script><script async src="../assets/hierarchy.js" id="tsd-hierarchy-script"></script></head><body><script>document.documentElement.dataset.theme = localStorage.getItem("tsd-theme") || "os";document.body.style.display="none";setTimeout(() => app?app.showPage():document.body.style.removeProperty("display"),500)</script><header class="tsd-page-toolbar"><div class="tsd-toolbar-contents container"><div class="table-cell" id="tsd-search"><div class="field"><label for="tsd-search-field" class="tsd-widget tsd-toolbar-icon search no-caption"><svg width="16" height="16" viewBox="0 0 16 16" fill="none" aria-hidden="true"><use href="../assets/icons.svg#icon-search"></use></svg></label><input type="text" id="tsd-search-field" aria-label="Search"/></div><div class="field"><div id="tsd-toolbar-links"></div></div><ul class="results"><li class="state loading">Preparing search index...</li><li class="state failure">The search index is not available</li></ul><a href="../index.html" class="title">agent-swarm-kit</a></div><div class="table-cell" id="tsd-widgets"><a href="#" class="tsd-widget tsd-toolbar-icon menu no-caption" data-toggle="menu" aria-label="Menu"><svg width="16" height="16" viewBox="0 0 16 16" fill="none" aria-hidden="true"><use href="../assets/icons.svg#icon-menu"></use></svg></a></div></div></header><div class="container container-main"><div class="col-content"><div class="tsd-page-title"><ul class="tsd-breadcrumb"><li><a href="../modules.html">agent-swarm-kit</a></li><li><a href="../modules/types.html">types</a></li><li><a href="types.beginContext.html">beginContext</a></li></ul><h1>Function beginContext</h1></div><section class="tsd-panel tsd-comment"><div class="tsd-comment tsd-typography"><p>A higher-order function that ensures a provided function executes outside of existing method and execution contexts. | |
| Wraps the input function to isolate its execution from any active <code>MethodContextService</code> or <code>ExecutionContextService</code> contexts, | |
| using <code>AsyncResource</code> to create a new, untracked async scope when necessary.</p> | |
| </div><div class="tsd-comment tsd-typography"><div class="tsd-tag-throws"><h4 class="tsd-anchor-link"><a id="throws" class="tsd-anchor"></a>Throws<a href="#throws" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24" aria-hidden="true"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></h4><p>Propagates any errors thrown by the wrapped <code>run</code> function during execution.</p> | |
| </div><div class="tsd-tag-example"><h4 class="tsd-anchor-link"><a id="example" class="tsd-anchor"></a>Example<a href="#example" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24" aria-hidden="true"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></h4><pre><code class="ts"><span class="hl-9">// Basic usage with a simple logging function</span><br/><span class="hl-4">const</span><span class="hl-1"> </span><span class="hl-0">logMessage</span><span class="hl-1"> = (</span><span class="hl-2">message</span><span class="hl-1">: </span><span class="hl-7">string</span><span class="hl-1">) </span><span class="hl-4">=></span><span class="hl-1"> </span><span class="hl-2">console</span><span class="hl-1">.</span><span class="hl-0">log</span><span class="hl-1">(</span><span class="hl-2">message</span><span class="hl-1">);</span><br/><span class="hl-4">const</span><span class="hl-1"> </span><span class="hl-6">safeLog</span><span class="hl-1"> = </span><span class="hl-0">beginContext</span><span class="hl-1">(</span><span class="hl-2">logMessage</span><span class="hl-1">);</span><br/><span class="hl-0">safeLog</span><span class="hl-1">(</span><span class="hl-3">"Hello, world!"</span><span class="hl-1">); </span><span class="hl-9">// Logs "Hello, world!" outside any existing contexts</span> | |
| </code><button type="button">Copy</button></pre> | |
| </div><div class="tsd-tag-example"><h4 class="tsd-anchor-link"><a id="example-1" class="tsd-anchor"></a>Example<a href="#example-1" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24" aria-hidden="true"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></h4><pre><code class="ts"><span class="hl-9">// Usage with an async function</span><br/><span class="hl-4">const</span><span class="hl-1"> </span><span class="hl-0">fetchData</span><span class="hl-1"> = </span><span class="hl-4">async</span><span class="hl-1"> (</span><span class="hl-2">id</span><span class="hl-1">: </span><span class="hl-7">number</span><span class="hl-1">) </span><span class="hl-4">=></span><span class="hl-1"> {</span><br/><span class="hl-1"> </span><span class="hl-4">const</span><span class="hl-1"> </span><span class="hl-6">response</span><span class="hl-1"> = </span><span class="hl-5">await</span><span class="hl-1"> </span><span class="hl-0">fetch</span><span class="hl-1">(</span><span class="hl-3">`https://api.example.com/data/</span><span class="hl-4">${</span><span class="hl-2">id</span><span class="hl-4">}</span><span class="hl-3">`</span><span class="hl-1">);</span><br/><span class="hl-1"> </span><span class="hl-5">return</span><span class="hl-1"> </span><span class="hl-2">response</span><span class="hl-1">.</span><span class="hl-0">json</span><span class="hl-1">();</span><br/><span class="hl-1">};</span><br/><span class="hl-4">const</span><span class="hl-1"> </span><span class="hl-6">safeFetch</span><span class="hl-1"> = </span><span class="hl-0">beginContext</span><span class="hl-1">(</span><span class="hl-2">fetchData</span><span class="hl-1">);</span><br/><span class="hl-0">safeFetch</span><span class="hl-1">(</span><span class="hl-8">42</span><span class="hl-1">).</span><span class="hl-0">then</span><span class="hl-1">(</span><span class="hl-2">data</span><span class="hl-1"> </span><span class="hl-4">=></span><span class="hl-1"> </span><span class="hl-2">console</span><span class="hl-1">.</span><span class="hl-0">log</span><span class="hl-1">(</span><span class="hl-2">data</span><span class="hl-1">)); </span><span class="hl-9">// Fetches data in a clean context</span> | |
| </code><button type="button">Copy</button></pre> | |
| </div><div class="tsd-tag-remarks"><h4 class="tsd-anchor-link"><a id="remarks" class="tsd-anchor"></a>Remarks<a href="#remarks" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24" aria-hidden="true"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></h4><p>This utility leverages <code>AsyncResource</code> from Node.js’s <code>async_hooks</code> to create a new async scope when either | |
| <code>MethodContextService.hasContext()</code> or <code>ExecutionContextService.hasContext()</code> returns true. This ensures the | |
| wrapped function runs in an isolated environment, free from inherited context state, which is critical for operations | |
| requiring a clean slate (e.g., resetting tracking in the agent swarm system). If no contexts are active, the function | |
| executes directly without overhead. The <code>resource.emitDestroy()</code> call ensures proper cleanup of the async resource.</p> | |
| </div><div class="tsd-tag-see"><h4 class="tsd-anchor-link"><a id="see" class="tsd-anchor"></a>See<a href="#see" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24" aria-hidden="true"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></h4><ul> | |
| <li><a href="../variables/types.MethodContextService.html" class="tsd-kind-variable">MethodContextService</a> for details on method-level context tracking.</li> | |
| <li><a href="../variables/types.ExecutionContextService.html" class="tsd-kind-variable">ExecutionContextService</a> for details on execution-level context tracking.</li> | |
| <li><a href="https://nodejs.org/api/async_hooks.html#class-asyncresource|Node.js">AsyncResource</a> for underlying mechanics.</li> | |
| </ul> | |
| </div></div></section><section class="tsd-panel"><ul class="tsd-signatures"><li class=""><div class="tsd-signature tsd-anchor-link"><a id="begincontext" class="tsd-anchor"></a><span class="tsd-kind-call-signature">beginContext</span><span class="tsd-signature-symbol"><</span><a class="tsd-signature-type tsd-kind-type-parameter" href="types.beginContext.html#begincontextt">T</a> <span class="tsd-signature-keyword">extends</span> <span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">...</span><span class="tsd-kind-parameter">args</span><span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">any</span><span class="tsd-signature-symbol">[]</span><span class="tsd-signature-symbol">)</span> <span class="tsd-signature-symbol">=></span> <span class="tsd-signature-type">any</span><span class="tsd-signature-symbol">></span><span class="tsd-signature-symbol">(</span><br/> <span class="tsd-kind-parameter">run</span><span class="tsd-signature-symbol">:</span> <a class="tsd-signature-type tsd-kind-type-parameter" href="types.beginContext.html#begincontextt">T</a><span class="tsd-signature-symbol">,</span><br/><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">:</span> <span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">...</span><span class="tsd-kind-parameter">args</span><span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">Parameters</span><span class="tsd-signature-symbol"><</span><a class="tsd-signature-type tsd-kind-type-parameter" href="types.beginContext.html#begincontextt">T</a><span class="tsd-signature-symbol">></span><span class="tsd-signature-symbol">)</span> <span class="tsd-signature-symbol">=></span> <span class="tsd-signature-type">ReturnType</span><span class="tsd-signature-symbol"><</span><a class="tsd-signature-type tsd-kind-type-parameter" href="types.beginContext.html#begincontextt">T</a><span class="tsd-signature-symbol">></span><a href="#begincontext" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24" aria-hidden="true"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></div><div class="tsd-description"><section class="tsd-panel"><h4>Type Parameters</h4><ul class="tsd-type-parameter-list"><li><span><a id="begincontextt" class="tsd-anchor"></a><span class="tsd-kind-type-parameter">T</span><span class="tsd-signature-keyword"> extends </span><span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">...</span><span class="tsd-kind-parameter">args</span><span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">any</span><span class="tsd-signature-symbol">[]</span><span class="tsd-signature-symbol">)</span> <span class="tsd-signature-symbol">=></span> <span class="tsd-signature-type">any</span></span><div class="tsd-comment tsd-typography"><p>The type of the function to be wrapped, extending any function with arbitrary arguments and return type. | |
| and executes it outside of any existing contexts if detected, otherwise runs it directly.</p> | |
| </div><div class="tsd-comment tsd-typography"></div></li></ul></section><div class="tsd-parameters"><h4 class="tsd-parameters-title">Parameters</h4><ul class="tsd-parameter-list"><li><span><span class="tsd-kind-parameter">run</span>: <a class="tsd-signature-type tsd-kind-type-parameter" href="types.beginContext.html#begincontextt">T</a></span></li></ul></div><h4 class="tsd-returns-title">Returns <span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">...</span><span class="tsd-kind-parameter">args</span><span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">Parameters</span><span class="tsd-signature-symbol"><</span><a class="tsd-signature-type tsd-kind-type-parameter" href="types.beginContext.html#begincontextt">T</a><span class="tsd-signature-symbol">></span><span class="tsd-signature-symbol">)</span> <span class="tsd-signature-symbol">=></span> <span class="tsd-signature-type">ReturnType</span><span class="tsd-signature-symbol"><</span><a class="tsd-signature-type tsd-kind-type-parameter" href="types.beginContext.html#begincontextt">T</a><span class="tsd-signature-symbol">></span></h4><aside class="tsd-sources"><ul><li>Defined in <a href="https://github.com/tripolskypetr/agent-swarm-kit/blob/c845cde9491ea2a2ff67712853da3ae248bd7d92/types.d.ts#L13764">types.d.ts:13764</a></li></ul></aside></div></li></ul></section></div><div class="col-sidebar"><div class="page-menu"><div class="tsd-navigation settings"><details class="tsd-accordion"><summary class="tsd-accordion-summary"><h3><svg width="20" height="20" viewBox="0 0 24 24" fill="none" aria-hidden="true"><use href="../assets/icons.svg#icon-chevronDown"></use></svg>Settings</h3></summary><div class="tsd-accordion-details"><div class="tsd-filter-visibility"><span class="settings-label">Member Visibility</span><ul id="tsd-filter-options"><li class="tsd-filter-item"><label class="tsd-filter-input"><input type="checkbox" id="tsd-filter-protected" name="protected"/><svg width="32" height="32" viewBox="0 0 32 32" aria-hidden="true"><rect class="tsd-checkbox-background" width="30" height="30" x="1" y="1" rx="6" fill="none"></rect><path class="tsd-checkbox-checkmark" d="M8.35422 16.8214L13.2143 21.75L24.6458 10.25" stroke="none" stroke-width="3.5" stroke-linejoin="round" fill="none"></path></svg><span>Protected</span></label></li><li class="tsd-filter-item"><label class="tsd-filter-input"><input type="checkbox" id="tsd-filter-inherited" name="inherited" checked/><svg width="32" height="32" viewBox="0 0 32 32" aria-hidden="true"><rect class="tsd-checkbox-background" width="30" height="30" x="1" y="1" rx="6" fill="none"></rect><path class="tsd-checkbox-checkmark" d="M8.35422 16.8214L13.2143 21.75L24.6458 10.25" stroke="none" stroke-width="3.5" stroke-linejoin="round" fill="none"></path></svg><span>Inherited</span></label></li><li class="tsd-filter-item"><label class="tsd-filter-input"><input type="checkbox" id="tsd-filter-external" name="external"/><svg width="32" height="32" viewBox="0 0 32 32" aria-hidden="true"><rect class="tsd-checkbox-background" width="30" height="30" x="1" y="1" rx="6" fill="none"></rect><path class="tsd-checkbox-checkmark" d="M8.35422 16.8214L13.2143 21.75L24.6458 10.25" stroke="none" stroke-width="3.5" stroke-linejoin="round" fill="none"></path></svg><span>External</span></label></li></ul></div><div class="tsd-theme-toggle"><label class="settings-label" for="tsd-theme">Theme</label><select id="tsd-theme"><option value="os">OS</option><option value="light">Light</option><option value="dark">Dark</option></select></div></div></details></div></div><div class="site-menu"><nav class="tsd-navigation"><a href="../modules.html">agent-swarm-kit</a><ul class="tsd-small-nested-navigation" id="tsd-nav-container"><li>Loading...</li></ul></nav></div></div></div><footer><p class="tsd-generator">Generated using <a href="https://typedoc.org/" target="_blank">TypeDoc</a></p></footer><div class="overlay"></div></body></html> | |
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