24 lines
16 KiB
HTML
24 lines
16 KiB
HTML
<!DOCTYPE html><html class="default"><head><meta charSet="utf-8"/><meta http-equiv="x-ua-compatible" content="IE=edge"/><title>Link | 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 async src="../assets/search.js" id="search-script"></script></head><body><script>document.body.classList.add(localStorage.getItem("tsd-theme") || "os")</script><header><div class="tsd-page-toolbar"><div class="container"><div class="table-wrap"><div class="table-cell" id="tsd-search" data-base=".."><div class="field"><label for="tsd-search-field" class="tsd-widget search no-caption">Search</label><input type="text" id="tsd-search-field"/></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"><div id="tsd-filter"><a href="#" class="tsd-widget options no-caption" data-toggle="options">Options</a><div class="tsd-filter-group"><div class="tsd-select" id="tsd-filter-visibility"><span class="tsd-select-label">All</span><ul class="tsd-select-list"><li data-value="public">Public</li><li data-value="protected">Public/Protected</li><li data-value="private" class="selected">All</li></ul></div> <input type="checkbox" id="tsd-filter-inherited" checked/><label class="tsd-widget" for="tsd-filter-inherited">Inherited</label><input type="checkbox" id="tsd-filter-externals" checked/><label class="tsd-widget" for="tsd-filter-externals">Externals</label></div></div><a href="#" class="tsd-widget menu no-caption" data-toggle="menu">Menu</a></div></div></div></div><div class="tsd-page-title"><div class="container"><ul class="tsd-breadcrumb"><li><a href="../index.html">OpenTelemetry SDK</a></li><li><a href="../modules/_opentelemetry_api.html">@opentelemetry/api</a></li><li><a href="_opentelemetry_api.Link.html">Link</a></li></ul><h1>Interface Link </h1></div></div></header><div class="container container-main"><div class="row"><div class="col-8 col-content"><section class="tsd-panel tsd-comment"><div class="tsd-comment tsd-typography"><div class="lead">
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<p>A pointer from the current <a href="_opentelemetry_api.Span.html">Span</a> to another span in the same trace or
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in a different trace.
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Few examples of Link usage.</p>
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<ol>
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<li>Batch Processing: A batch of elements may contain elements associated
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with one or more traces/spans. Since there can only be one parent
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SpanContext, Link is used to keep reference to SpanContext of all
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elements in the batch.</li>
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<li>Public Endpoint: A SpanContext in incoming client request on a public
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endpoint is untrusted from service provider perspective. In such case it
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is advisable to start a new trace with appropriate sampling decision.
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However, it is desirable to associate incoming SpanContext to new trace
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initiated on service provider side so two traces (from Client and from
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Service Provider) can be correlated.</li>
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</ol>
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</div><dl class="tsd-comment-tags"><dt>since</dt><dd><p>1.0.0</p>
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</dd></dl></div></section><section class="tsd-panel tsd-hierarchy"><h3>Hierarchy</h3><ul class="tsd-hierarchy"><li><span class="target">Link</span></li></ul></section><section class="tsd-panel-group tsd-index-group"><h2>Index</h2><section class="tsd-panel tsd-index-panel"><div class="tsd-index-content"><section class="tsd-index-section "><h3>Properties</h3><ul class="tsd-index-list"><li class="tsd-kind-property tsd-parent-kind-interface"><a href="_opentelemetry_api.Link.html#attributes" class="tsd-kind-icon">attributes</a></li><li class="tsd-kind-property tsd-parent-kind-interface"><a href="_opentelemetry_api.Link.html#context" class="tsd-kind-icon">context</a></li><li class="tsd-kind-property tsd-parent-kind-interface"><a href="_opentelemetry_api.Link.html#droppedAttributesCount" class="tsd-kind-icon">dropped<wbr/>Attributes<wbr/>Count</a></li></ul></section></div></section></section><section class="tsd-panel-group tsd-member-group "><h2>Properties</h2><section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-interface"><a id="attributes" class="tsd-anchor"></a><h3 class="tsd-anchor-link"><span class="tsd-flag ts-flagOptional">Optional</span> attributes<a href="#attributes" aria-label="Permalink" class="tsd-anchor-icon"><svg xmlns="http://www.w3.org/2000/svg" class="icon icon-tabler icon-tabler-link" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M10 14a3.5 3.5 0 0 0 5 0l4 -4a3.5 3.5 0 0 0 -5 -5l-.5 .5"></path><path d="M14 10a3.5 3.5 0 0 0 -5 0l-4 4a3.5 3.5 0 0 0 5 5l.5 -.5"></path></svg></a></h3><div class="tsd-signature tsd-kind-icon">attributes<span class="tsd-signature-symbol">?:</span> <a href="_opentelemetry_api.Attributes.html" class="tsd-signature-type" data-tsd-kind="Interface">Attributes</a></div><aside class="tsd-sources"><ul><li>Defined in <a href="https://github.com/open-telemetry/opentelemetry-js/blob/e97cc2e/api/src/trace/link.ts#L41">api/src/trace/link.ts:41</a></li></ul></aside><div class="tsd-comment tsd-typography"><div class="lead">
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<p>A set of <a href="../modules/_opentelemetry_api.html#SpanAttributes">SpanAttributes</a> on the link.</p>
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</div></div></section><section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-interface"><a id="context" class="tsd-anchor"></a><h3 class="tsd-anchor-link">context<a href="#context" aria-label="Permalink" class="tsd-anchor-icon"><svg xmlns="http://www.w3.org/2000/svg" class="icon icon-tabler icon-tabler-link" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M10 14a3.5 3.5 0 0 0 5 0l4 -4a3.5 3.5 0 0 0 -5 -5l-.5 .5"></path><path d="M14 10a3.5 3.5 0 0 0 -5 0l-4 4a3.5 3.5 0 0 0 5 5l.5 -.5"></path></svg></a></h3><div class="tsd-signature tsd-kind-icon">context<span class="tsd-signature-symbol">:</span> <a href="_opentelemetry_api.SpanContext.html" class="tsd-signature-type" data-tsd-kind="Interface">SpanContext</a></div><aside class="tsd-sources"><ul><li>Defined in <a href="https://github.com/open-telemetry/opentelemetry-js/blob/e97cc2e/api/src/trace/link.ts#L39">api/src/trace/link.ts:39</a></li></ul></aside><div class="tsd-comment tsd-typography"><div class="lead">
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<p>The <a href="_opentelemetry_api.SpanContext.html">SpanContext</a> of a linked span.</p>
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</div></div></section><section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-interface"><a id="droppedAttributesCount" class="tsd-anchor"></a><h3 class="tsd-anchor-link"><span class="tsd-flag ts-flagOptional">Optional</span> dropped<wbr/>Attributes<wbr/>Count<a href="#droppedAttributesCount" aria-label="Permalink" class="tsd-anchor-icon"><svg xmlns="http://www.w3.org/2000/svg" class="icon icon-tabler icon-tabler-link" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M10 14a3.5 3.5 0 0 0 5 0l4 -4a3.5 3.5 0 0 0 -5 -5l-.5 .5"></path><path d="M14 10a3.5 3.5 0 0 0 -5 0l-4 4a3.5 3.5 0 0 0 5 5l.5 -.5"></path></svg></a></h3><div class="tsd-signature tsd-kind-icon">dropped<wbr/>Attributes<wbr/>Count<span class="tsd-signature-symbol">?:</span> <span class="tsd-signature-type">number</span></div><aside class="tsd-sources"><ul><li>Defined in <a href="https://github.com/open-telemetry/opentelemetry-js/blob/e97cc2e/api/src/trace/link.ts#L43">api/src/trace/link.ts:43</a></li></ul></aside><div class="tsd-comment tsd-typography"><div class="lead">
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<p>Count of attributes of the link that were dropped due to collection limits</p>
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</div></div></section></section></div><div class="col-4 col-menu menu-sticky-wrap menu-highlight"><nav class="tsd-navigation primary"><ul><li class=""><a href="../index.html">Modules</a></li><li class="current tsd-kind-module"><a href="../modules/_opentelemetry_api.html">@opentelemetry/api</a><ul><li class=" tsd-kind-module tsd-parent-kind-module"><a href="../modules/_opentelemetry_api._internal_.html"><internal></a></li></ul></li><li class=" tsd-kind-module"><a href="../modules/_opentelemetry_api_events.html">@opentelemetry/api-<wbr/>events</a></li><li class=" tsd-kind-module"><a href="../modules/_opentelemetry_api_logs.html">@opentelemetry/api-<wbr/>logs</a></li><li class=" tsd-kind-module"><a href="../modules/_opentelemetry_context_async_hooks.html">@opentelemetry/context-<wbr/>async-<wbr/>hooks</a></li><li class=" tsd-kind-module"><a href="../modules/_opentelemetry_context_zone.html">@opentelemetry/context-<wbr/>zone</a></li><li class=" tsd-kind-module"><a 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