opentelemetry-js/classes/_opentelemetry_api.DiagAPI....

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<!DOCTYPE html><html class="default"><head><meta charSet="utf-8"/><meta http-equiv="x-ua-compatible" content="IE=edge"/><title>DiagAPI | 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.DiagAPI.html">DiagAPI</a></li></ul><h1>Class DiagAPI </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">
<p>Singleton object which represents the entry point to the OpenTelemetry internal
diagnostic API</p>
</div><dl class="tsd-comment-tags"><dt>since</dt><dd><p>1.0.0</p>
</dd></dl></div></section><section class="tsd-panel tsd-hierarchy"><h3>Hierarchy</h3><ul class="tsd-hierarchy"><li><span class="target">DiagAPI</span></li></ul></section><section class="tsd-panel"><h3>Implements</h3><ul class="tsd-hierarchy"><li><a href="../interfaces/_opentelemetry_api.DiagLogger.html" class="tsd-signature-type" data-tsd-kind="Interface">DiagLogger</a></li><li><a href="../interfaces/_opentelemetry_api._internal_.DiagLoggerApi.html" class="tsd-signature-type" data-tsd-kind="Interface">DiagLoggerApi</a></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-class"><a href="_opentelemetry_api.DiagAPI.html#createComponentLogger" class="tsd-kind-icon">create<wbr/>Component<wbr/>Logger</a></li><li class="tsd-kind-property tsd-parent-kind-class"><a href="_opentelemetry_api.DiagAPI.html#debug" class="tsd-kind-icon">debug</a></li><li class="tsd-kind-property tsd-parent-kind-class"><a href="_opentelemetry_api.DiagAPI.html#disable" class="tsd-kind-icon">disable</a></li><li class="tsd-kind-property tsd-parent-kind-class"><a href="_opentelemetry_api.DiagAPI.html#error" class="tsd-kind-icon">error</a></li><li class="tsd-kind-property tsd-parent-kind-class"><a href="_opentelemetry_api.DiagAPI.html#info" class="tsd-kind-icon">info</a></li><li class="tsd-kind-property tsd-parent-kind-class"><a href="_opentelemetry_api.DiagAPI.html#setLogger" class="tsd-kind-icon">set<wbr/>Logger</a></li><li class="tsd-kind-property tsd-parent-kind-class"><a href="_opentelemetry_api.DiagAPI.html#verbose" class="tsd-kind-icon">verbose</a></li><li class="tsd-kind-property tsd-parent-kind-class"><a href="_opentelemetry_api.DiagAPI.html#warn" class="tsd-kind-icon">warn</a></li></ul></section><section class="tsd-index-section "><h3>Methods</h3><ul class="tsd-index-list"><li class="tsd-kind-method tsd-parent-kind-class tsd-is-static"><a href="_opentelemetry_api.DiagAPI.html#instance" class="tsd-kind-icon">instance</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-class"><a id="createComponentLogger" class="tsd-anchor"></a><h3 class="tsd-anchor-link">create<wbr/>Component<wbr/>Logger<a href="#createComponentLogger" 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">create<wbr/>Component<wbr/>Logger<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">(</span>options<span class="tsd-signature-symbol">: </span><a href="../interfaces/_opentelemetry_api.ComponentLoggerOptions.html" class="tsd-signature-type" data-tsd-kind="Interface">ComponentLoggerOptions</a><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol"> =&gt; </span><a href="../interfaces/_opentelemetry_api.DiagLogger.html" class="tsd-signature-type" data-tsd-kind="Interface">DiagLogger</a><span class="tsd-signature-symbol">)</span></div><aside class="tsd-sources"><ul><li>Defined in <a href="https://github.com/open-telemetry/opentelemetry-js/blob/e97cc2e/api/src/api/diag.ts#L130">api/src/api/diag.ts:130</a></li></ul></aside><div class="tsd-type-declaration"><h4>Type declaration</h4><ul class="tsd-parameters"><li class="tsd-parameter-signature"><ul class="tsd-signatures tsd-kind-type-literal tsd-parent-kind-class"><li class="tsd-signature tsd-kind-icon"><span class="tsd-signature-symbol">(</span>options<span class="tsd-signature-symbol">: </span><a href="../interfaces/_opentelemetry_api.ComponentLoggerOptions.html" class="tsd-signature-type" data-tsd-kind="Interface">ComponentLoggerOptions</a><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><a href="../interfaces/_opentelemetry_api.DiagLogger.html" class="tsd-signature-type" data-tsd-kind="Interface">DiagLogger</a></li></ul><ul class="tsd-descriptions"><li class="tsd-description"><h4 class="tsd-parameters-title">Parameters</h4><ul class="tsd-parameters"><li><h5>options: <a href="../interfaces/_opentelemetry_api.ComponentLoggerOptions.html" class="tsd-signature-type" data-tsd-kind="Interface">ComponentLoggerOptions</a></h5></li></ul><h4 class="tsd-returns-title">Returns <a href="../interfaces/_opentelemetry_api.DiagLogger.html" class="tsd-signature-type" data-tsd-kind="Interface">DiagLogger</a></h4></li></ul></li></ul></div></section><section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-class"><a id="debug" class="tsd-anchor"></a><h3 class="tsd-anchor-link">debug<a href="#debug" 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">debug<span class="tsd-signature-symbol">:</span> <a href="../modules/_opentelemetry_api.html#DiagLogFunction" class="tsd-signature-type" data-tsd-kind="Type alias">DiagLogFunction</a></div><aside class="tsd-sources"><p>Implementation of <a href="../interfaces/_opentelemetry_api.DiagLogger.html">DiagLogger</a>.<a href="../interfaces/_opentelemetry_api.DiagLogger.html#debug">debug</a></p><ul><li>Defined in <a href="https://github.com/open-telemetry/opentelemetry-js/blob/e97cc2e/api/src/api/diag.ts#L136">api/src/api/diag.ts:136</a></li></ul></aside><div class="tsd-comment tsd-typography"><div class="lead">
<p>Log a general debug message that can be useful for identifying a failure.
Information logged at this level may include diagnostic details that would
help identify a failure scenario.
For example: Logging the order of execution of async operations.</p>
</div></div></section><section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-class"><a id="disable" class="tsd-anchor"></a><h3 class="tsd-anchor-link">disable<a href="#disable" 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">disable<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-signature-symbol"> =&gt; </span><span class="tsd-signature-type">void</span><span class="tsd-signature-symbol">)</span></div><aside class="tsd-sources"><ul><li>Defined in <a href="https://github.com/open-telemetry/opentelemetry-js/blob/e97cc2e/api/src/api/diag.ts#L144">api/src/api/diag.ts:144</a></li></ul></aside><div class="tsd-type-declaration"><h4>Type declaration</h4><ul class="tsd-parameters"><li class="tsd-parameter-signature"><ul class="tsd-signatures tsd-kind-type-literal tsd-parent-kind-class"><li class="tsd-signature tsd-kind-icon"><span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">void</span></li></ul><ul class="tsd-descriptions"><li class="tsd-description"><div class="tsd-comment tsd-typography"><div class="lead">
<p>Unregister the global logger and return to Noop</p>
</div></div><h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">void</span></h4></li></ul></li></ul></div></section><section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-class"><a id="error" class="tsd-anchor"></a><h3 class="tsd-anchor-link">error<a href="#error" 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">error<span class="tsd-signature-symbol">:</span> <a href="../modules/_opentelemetry_api.html#DiagLogFunction" class="tsd-signature-type" data-tsd-kind="Type alias">DiagLogFunction</a></div><aside class="tsd-sources"><p>Implementation of <a href="../interfaces/_opentelemetry_api.DiagLogger.html">DiagLogger</a>.<a href="../interfaces/_opentelemetry_api.DiagLogger.html#error">error</a></p><ul><li>Defined in <a href="https://github.com/open-telemetry/opentelemetry-js/blob/e97cc2e/api/src/api/diag.ts#L139">api/src/api/diag.ts:139</a></li></ul></aside><div class="tsd-comment tsd-typography"><div class="lead">
<p>Log an error scenario that was not expected and caused the requested operation to fail.</p>
</div></div></section><section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-class"><a id="info" class="tsd-anchor"></a><h3 class="tsd-anchor-link">info<a href="#info" 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">info<span class="tsd-signature-symbol">:</span> <a href="../modules/_opentelemetry_api.html#DiagLogFunction" class="tsd-signature-type" data-tsd-kind="Type alias">DiagLogFunction</a></div><aside class="tsd-sources"><p>Implementation of <a href="../interfaces/_opentelemetry_api.DiagLogger.html">DiagLogger</a>.<a href="../interfaces/_opentelemetry_api.DiagLogger.html#info">info</a></p><ul><li>Defined in <a href="https://github.com/open-telemetry/opentelemetry-js/blob/e97cc2e/api/src/api/diag.ts#L137">api/src/api/diag.ts:137</a></li></ul></aside><div class="tsd-comment tsd-typography"><div class="lead">
<p>Log a general informational message, this should not affect functionality.
This is also the default logging level so this should NOT be used for logging
debugging level information.</p>
</div></div></section><section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-class"><a id="setLogger" class="tsd-anchor"></a><h3 class="tsd-anchor-link">set<wbr/>Logger<a href="#setLogger" 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">set<wbr/>Logger<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-symbol">{ </span><span class="tsd-signature-symbol">(</span>logger<span class="tsd-signature-symbol">: </span><a href="../interfaces/_opentelemetry_api.DiagLogger.html" class="tsd-signature-type" data-tsd-kind="Interface">DiagLogger</a>, options<span class="tsd-signature-symbol">?: </span><a href="../interfaces/_opentelemetry_api.DiagLoggerOptions.html" class="tsd-signature-type" data-tsd-kind="Interface">DiagLoggerOptions</a><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">boolean</span><span class="tsd-signature-symbol">; </span><span class="tsd-signature-symbol">(</span>logger<span class="tsd-signature-symbol">: </span><a href="../interfaces/_opentelemetry_api.DiagLogger.html" class="tsd-signature-type" data-tsd-kind="Interface">DiagLogger</a>, logLevel<span class="tsd-signature-symbol">?: </span><a href="../enums/_opentelemetry_api.DiagLogLevel.html" class="tsd-signature-type" data-tsd-kind="Enumeration">DiagLogLevel</a><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">boolean</span><span class="tsd-signature-symbol"> }</span></div><aside class="tsd-sources"><p>Implementation of <a href="../interfaces/_opentelemetry_api._internal_.DiagLoggerApi.html">DiagLoggerApi</a>.<a href="../interfaces/_opentelemetry_api._internal_.DiagLoggerApi.html#setLogger">setLogger</a></p><ul><li>Defined in <a href="https://github.com/open-telemetry/opentelemetry-js/blob/e97cc2e/api/src/api/diag.ts#L126">api/src/api/diag.ts:126</a></li></ul></aside><div class="tsd-type-declaration"><h4>Type declaration</h4><ul class="tsd-parameters"><li class="tsd-parameter-signature"><ul class="tsd-signatures tsd-kind-type-literal tsd-parent-kind-class"><li class="tsd-signature tsd-kind-icon"><span class="tsd-signature-symbol">(</span>logger<span class="tsd-signature-symbol">: </span><a href="../interfaces/_opentelemetry_api.DiagLogger.html" class="tsd-signature-type" data-tsd-kind="Interface">DiagLogger</a>, options<span class="tsd-signature-symbol">?: </span><a href="../interfaces/_opentelemetry_api.DiagLoggerOptions.html" class="tsd-signature-type" data-tsd-kind="Interface">DiagLoggerOptions</a><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">boolean</span></li><li class="tsd-signature tsd-kind-icon"><span class="tsd-signature-symbol">(</span>logger<span class="tsd-signature-symbol">: </span><a href="../interfaces/_opentelemetry_api.DiagLogger.html" class="tsd-signature-type" data-tsd-kind="Interface">DiagLogger</a>, logLevel<span class="tsd-signature-symbol">?: </span><a href="../enums/_opentelemetry_api.DiagLogLevel.html" class="tsd-signature-type" data-tsd-kind="Enumeration">DiagLogLevel</a><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">boolean</span></li></ul><ul class="tsd-descriptions"><li class="tsd-description"><div class="tsd-comment tsd-typography"><div class="lead">
<p>Set the global DiagLogger and DiagLogLevel.
If a global diag logger is already set, this will override it.</p>
</div></div><h4 class="tsd-parameters-title">Parameters</h4><ul class="tsd-parameters"><li><h5>logger: <a href="../interfaces/_opentelemetry_api.DiagLogger.html" class="tsd-signature-type" data-tsd-kind="Interface">DiagLogger</a></h5><div class="tsd-comment tsd-typography"><div class="lead">
<p>The <a href="../interfaces/_opentelemetry_api.DiagLogger.html">DiagLogger</a> instance to set as the default logger.</p>
</div></div></li><li><h5><span class="tsd-flag ts-flagOptional">Optional</span> options: <a href="../interfaces/_opentelemetry_api.DiagLoggerOptions.html" class="tsd-signature-type" data-tsd-kind="Interface">DiagLoggerOptions</a></h5><div class="tsd-comment tsd-typography"><div class="lead">
<p>A <a href="../interfaces/_opentelemetry_api.DiagLoggerOptions.html">DiagLoggerOptions</a> object. If not provided, default values will be set.</p>
</div></div></li></ul><h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">boolean</span></h4><div><p><code>true</code> if the logger was successfully registered, else <code>false</code></p>
</div></li><li class="tsd-description"><h4 class="tsd-parameters-title">Parameters</h4><ul class="tsd-parameters"><li><h5>logger: <a href="../interfaces/_opentelemetry_api.DiagLogger.html" class="tsd-signature-type" data-tsd-kind="Interface">DiagLogger</a></h5><div class="tsd-comment tsd-typography"><div class="lead">
<p>The <a href="../interfaces/_opentelemetry_api.DiagLogger.html">DiagLogger</a> instance to set as the default logger.</p>
</div></div></li><li><h5><span class="tsd-flag ts-flagOptional">Optional</span> logLevel: <a href="../enums/_opentelemetry_api.DiagLogLevel.html" class="tsd-signature-type" data-tsd-kind="Enumeration">DiagLogLevel</a></h5><div class="tsd-comment tsd-typography"><div class="lead">
<p>The <a href="../enums/_opentelemetry_api.DiagLogLevel.html">DiagLogLevel</a> used to filter logs sent to the logger. If not provided it will default to <a href="../enums/_opentelemetry_api.DiagLogLevel.html#INFO">DiagLogLevel.INFO</a>.</p>
</div></div></li></ul><h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">boolean</span></h4><div><p><code>true</code> if the logger was successfully registered, else <code>false</code></p>
</div></li></ul></li></ul></div></section><section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-class"><a id="verbose" class="tsd-anchor"></a><h3 class="tsd-anchor-link">verbose<a href="#verbose" 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">verbose<span class="tsd-signature-symbol">:</span> <a href="../modules/_opentelemetry_api.html#DiagLogFunction" class="tsd-signature-type" data-tsd-kind="Type alias">DiagLogFunction</a></div><aside class="tsd-sources"><p>Implementation of <a href="../interfaces/_opentelemetry_api.DiagLogger.html">DiagLogger</a>.<a href="../interfaces/_opentelemetry_api.DiagLogger.html#verbose">verbose</a></p><ul><li>Defined in <a href="https://github.com/open-telemetry/opentelemetry-js/blob/e97cc2e/api/src/api/diag.ts#L135">api/src/api/diag.ts:135</a></li></ul></aside><div class="tsd-comment tsd-typography"><div class="lead">
<p>Log a detailed (verbose) trace level logging that can be used to identify failures
where debug level logging would be insufficient, this level of tracing can include
input and output parameters and as such may include PII information passing through
the API. As such it is recommended that this level of tracing should not be enabled
in a production environment.</p>
</div></div></section><section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-class"><a id="warn" class="tsd-anchor"></a><h3 class="tsd-anchor-link">warn<a href="#warn" 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">warn<span class="tsd-signature-symbol">:</span> <a href="../modules/_opentelemetry_api.html#DiagLogFunction" class="tsd-signature-type" data-tsd-kind="Type alias">DiagLogFunction</a></div><aside class="tsd-sources"><p>Implementation of <a href="../interfaces/_opentelemetry_api.DiagLogger.html">DiagLogger</a>.<a href="../interfaces/_opentelemetry_api.DiagLogger.html#warn">warn</a></p><ul><li>Defined in <a href="https://github.com/open-telemetry/opentelemetry-js/blob/e97cc2e/api/src/api/diag.ts#L138">api/src/api/diag.ts:138</a></li></ul></aside><div class="tsd-comment tsd-typography"><div class="lead">
<p>Log a warning scenario to inform the developer of an issues that should be investigated.
The requested operation may or may not have succeeded or completed.</p>
</div></div></section></section><section class="tsd-panel-group tsd-member-group "><h2>Methods</h2><section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-class tsd-is-static"><a id="instance" class="tsd-anchor"></a><h3 class="tsd-anchor-link"><span class="tsd-flag ts-flagStatic">Static</span> instance<a href="#instance" 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><ul class="tsd-signatures tsd-kind-method tsd-parent-kind-class tsd-is-static"><li class="tsd-signature tsd-kind-icon">instance<span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><a href="_opentelemetry_api.DiagAPI.html" class="tsd-signature-type" data-tsd-kind="Class">DiagAPI</a></li></ul><ul class="tsd-descriptions"><li class="tsd-description"><aside class="tsd-sources"><ul><li>Defined in <a href="https://github.com/open-telemetry/opentelemetry-js/blob/e97cc2e/api/src/api/diag.ts#L44">api/src/api/diag.ts:44</a></li></ul></aside><div class="tsd-comment tsd-typography"><div class="lead">
<p>Get the singleton instance of the DiagAPI API</p>
</div></div><h4 class="tsd-returns-title">Returns <a href="_opentelemetry_api.DiagAPI.html" class="tsd-signature-type" data-tsd-kind="Class">DiagAPI</a></h4></li></ul></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">&lt;internal&gt;</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=" 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class="tsd-kind-icon">create<wbr/>Component<wbr/>Logger</a></li><li class="tsd-kind-property tsd-parent-kind-class"><a href="_opentelemetry_api.DiagAPI.html#debug" class="tsd-kind-icon">debug</a></li><li class="tsd-kind-property tsd-parent-kind-class"><a href="_opentelemetry_api.DiagAPI.html#disable" class="tsd-kind-icon">disable</a></li><li class="tsd-kind-property tsd-parent-kind-class"><a href="_opentelemetry_api.DiagAPI.html#error" class="tsd-kind-icon">error</a></li><li class="tsd-kind-property tsd-parent-kind-class"><a href="_opentelemetry_api.DiagAPI.html#info" class="tsd-kind-icon">info</a></li><li class="tsd-kind-property tsd-parent-kind-class"><a href="_opentelemetry_api.DiagAPI.html#setLogger" class="tsd-kind-icon">set<wbr/>Logger</a></li><li class="tsd-kind-property tsd-parent-kind-class"><a href="_opentelemetry_api.DiagAPI.html#verbose" class="tsd-kind-icon">verbose</a></li><li class="tsd-kind-property tsd-parent-kind-class"><a href="_opentelemetry_api.DiagAPI.html#warn" class="tsd-kind-icon">warn</a></li><li class="tsd-kind-method tsd-parent-kind-class tsd-is-static"><a href="_opentelemetry_api.DiagAPI.html#instance" class="tsd-kind-icon">instance</a></li></ul></li></ul></nav></div></div></div><footer class="with-border-bottom"><div class="container"><h2>Legend</h2><div class="tsd-legend-group"><ul class="tsd-legend"><li class="tsd-kind-variable"><span class="tsd-kind-icon">Variable</span></li><li class="tsd-kind-function"><span class="tsd-kind-icon">Function</span></li><li class="tsd-kind-function tsd-has-type-parameter"><span class="tsd-kind-icon">Function with type parameter</span></li><li class="tsd-kind-type-alias"><span class="tsd-kind-icon">Type alias</span></li><li class="tsd-kind-type-alias tsd-has-type-parameter"><span class="tsd-kind-icon">Type alias with type parameter</span></li></ul><ul class="tsd-legend"><li class="tsd-kind-class"><span class="tsd-kind-icon">Class</span></li><li class="tsd-kind-class tsd-has-type-parameter"><span 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