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26 lines
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<!DOCTYPE html><html class="default" lang="en" data-base=".."><head><meta charset="utf-8"/><meta http-equiv="x-ua-compatible" content="IE=edge"/><title>@opentelemetry/sdk-trace-web | OpenTelemetry SDK</title><meta name="description" content="Documentation for OpenTelemetry SDK"/><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">OpenTelemetry SDK</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="../index.html">OpenTelemetry SDK</a></li><li><a href="_opentelemetry_sdk-trace-web.html">@opentelemetry/sdk-trace-web</a></li></ul><h1>Module @opentelemetry/sdk-trace-web</h1></div><section class="tsd-panel tsd-typography"><a id="opentelemetry-web-sdk" class="tsd-anchor"></a><h1 class="tsd-anchor-link">OpenTelemetry Web SDK<a href="#opentelemetry-web-sdk" 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></h1><p><a href="https://www.npmjs.com/package/@opentelemetry/sdk-trace-web"><img src="https://badge.fury.io/js/%40opentelemetry%2Fsdk-trace-web.svg" alt="NPM Published Version"></a>
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<a href="https://img.shields.io/badge/license-Apache_2.0-green.svg?style=flat"><img src="https://img.shields.io/badge/license-Apache_2.0-green.svg?style=flat" alt="Apache License"></a></p>
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<p>This module provides <em>automated instrumentation and tracing</em> for Web applications.</p>
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<p>For manual instrumentation see the
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<a href="https://github.com/open-telemetry/opentelemetry-js/tree/main/packages/opentelemetry-sdk-trace-base">@opentelemetry/sdk-trace-base</a> package.</p>
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<a id="how-does-automatic-tracing-work" class="tsd-anchor"></a><h2 class="tsd-anchor-link">How does automatic tracing work<a href="#how-does-automatic-tracing-work" 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></h2><p>This package exposes a class <code>WebTracerProvider</code> that will be able to automatically trace things in Browser only.</p>
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<p>See the example how to use it.</p>
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<p>OpenTelemetry comes with a growing number of instrumentations for well know modules (see <a href="https://github.com/open-telemetry/opentelemetry-js#plugins">supported modules</a>) and an API to create custom instrumentations (see <a href="https://github.com/open-telemetry/opentelemetry-js/blob/main/doc/instrumentation-guide.md">the instrumentation developer guide</a>).</p>
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<p>Web Tracer currently supports one plugin for document load.
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Unlike Node Tracer (<code>NodeTracerProvider</code>), the plugins needs to be initialized and passed in configuration.
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The reason is to give user full control over which plugin will be bundled into web page.</p>
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<p>You can choose to use the <code>ZoneContextManager</code> if you want to trace asynchronous operations. Please note that the <code>ZoneContextManager</code> does not work with JS code targeting <code>ES2017+</code>. In order to use the <code>ZoneContextManager</code>, please transpile back to <code>ES2015</code>.</p>
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<a id="installation" class="tsd-anchor"></a><h2 class="tsd-anchor-link">Installation<a href="#installation" 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></h2><pre><code class="bash"><span class="hl-0">npm</span><span class="hl-1"> </span><span class="hl-2">install</span><span class="hl-1"> </span><span class="hl-3">--save</span><span class="hl-1"> </span><span class="hl-2">@opentelemetry/sdk-trace-web</span>
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</code><button type="button">Copy</button></pre>
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<a id="usage" class="tsd-anchor"></a><h2 class="tsd-anchor-link">Usage<a href="#usage" 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></h2><pre><code class="js"><span class="hl-7">import</span><span class="hl-1"> {</span><br/><span class="hl-1"> </span><span class="hl-6">ConsoleSpanExporter</span><span class="hl-1">,</span><br/><span class="hl-1"> </span><span class="hl-6">SimpleSpanProcessor</span><span class="hl-1">,</span><br/><span class="hl-1"> </span><span class="hl-6">WebTracerProvider</span><span class="hl-1">,</span><br/><span class="hl-1">} </span><span class="hl-7">from</span><span class="hl-1"> </span><span class="hl-2">'@opentelemetry/sdk-trace-web'</span><span class="hl-1">;</span><br/><span class="hl-7">import</span><span class="hl-1"> { </span><span class="hl-6">DocumentLoad</span><span class="hl-1"> } </span><span class="hl-7">from</span><span class="hl-1"> </span><span class="hl-2">'@opentelemetry/plugin-document-load'</span><span class="hl-1">;</span><br/><span class="hl-7">import</span><span class="hl-1"> { </span><span class="hl-6">ZoneContextManager</span><span class="hl-1"> } </span><span class="hl-7">from</span><span class="hl-1"> </span><span class="hl-2">'@opentelemetry/context-zone'</span><span class="hl-1">;</span><br/><span class="hl-7">import</span><span class="hl-1"> { </span><span class="hl-6">registerInstrumentations</span><span class="hl-1"> } </span><span class="hl-7">from</span><span class="hl-1"> </span><span class="hl-2">'@opentelemetry/instrumentation'</span><span class="hl-1">;</span><br/><br/><span class="hl-3">const</span><span class="hl-1"> </span><span class="hl-4">provider</span><span class="hl-1"> = </span><span class="hl-3">new</span><span class="hl-1"> </span><span class="hl-0">WebTracerProvider</span><span class="hl-1">({</span><br/><span class="hl-1"> </span><span class="hl-6">spanProcessors:</span><span class="hl-1"> [</span><span class="hl-3">new</span><span class="hl-1"> </span><span class="hl-0">SimpleSpanProcessor</span><span class="hl-1">(</span><span class="hl-3">new</span><span class="hl-1"> </span><span class="hl-0">ConsoleSpanExporter</span><span class="hl-1">())]</span><br/><span class="hl-1">});</span><br/><br/><span class="hl-6">provider</span><span class="hl-1">.</span><span class="hl-0">register</span><span class="hl-1">({</span><br/><span class="hl-1"> </span><span class="hl-5">// Changing default contextManager to use ZoneContextManager - supports asynchronous operations - optional</span><br/><span class="hl-1"> </span><span class="hl-6">contextManager:</span><span class="hl-1"> </span><span class="hl-3">new</span><span class="hl-1"> </span><span class="hl-0">ZoneContextManager</span><span class="hl-1">(),</span><br/><span class="hl-1">});</span><br/><br/><span class="hl-5">// Registering instrumentations / plugins</span><br/><span class="hl-0">registerInstrumentations</span><span class="hl-1">({</span><br/><span class="hl-1"> </span><span class="hl-6">instrumentations:</span><span class="hl-1"> [</span><br/><span class="hl-1"> </span><span class="hl-3">new</span><span class="hl-1"> </span><span class="hl-0">DocumentLoad</span><span class="hl-1">(),</span><br/><span class="hl-1"> ],</span><br/><span class="hl-1">});</span><br/>
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</code><button type="button">Copy</button></pre>
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<a id="useful-links" class="tsd-anchor"></a><h2 class="tsd-anchor-link">Useful links<a href="#useful-links" 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></h2><ul>
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<li>For more information on OpenTelemetry, visit: <a href="https://opentelemetry.io/">https://opentelemetry.io/</a></li>
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<li>For more about OpenTelemetry JavaScript: <a href="https://github.com/open-telemetry/opentelemetry-js">https://github.com/open-telemetry/opentelemetry-js</a></li>
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<li>For help or feedback on this project, join us in <a href="https://github.com/open-telemetry/opentelemetry-js/discussions">GitHub Discussions</a></li>
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</ul>
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<a id="license" class="tsd-anchor"></a><h2 class="tsd-anchor-link">License<a href="#license" 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></h2><p>Apache 2.0 - See <a href="https://github.com/open-telemetry/opentelemetry-js/blob/main/LICENSE">LICENSE</a> for more information.</p>
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