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<html xmlns="http://www.w3.org/1999/xhtml"><head><title>Tracer (opentelemetry-lwt.Opentelemetry_lwt.Tracer)</title><meta charset="utf-8"/><link rel="stylesheet" href="../../../_odoc-theme/odoc.css"/><meta name="generator" content="odoc 3.1.0"/><meta name="viewport" content="width=device-width,initial-scale=1.0"/><script src="../../../highlight.pack.js"></script><script>hljs.initHighlightingOnLoad();</script></head><body class="odoc"><nav class="odoc-nav"><a href="../index.html">Up</a> – <a href="../../../index.html">Index</a> » <a href="../../index.html">opentelemetry-lwt</a> » <a href="../index.html">Opentelemetry_lwt</a> » Tracer</nav><header class="odoc-preamble"><h1>Module <code><span>Opentelemetry_lwt.Tracer</span></code></h1></header><div class="odoc-content"><div class="odoc-include"><details open="open"><summary class="spec include"><code><span><span class="keyword">include</span> <span class="keyword">module</span> <span class="keyword">type</span> <span class="keyword">of</span> <span class="keyword">struct</span> <span class="keyword">include</span> <a href="../../../opentelemetry/Opentelemetry/Tracer/index.html">Opentelemetry.Tracer</a> <span class="keyword">end</span></span></code></summary><div class="odoc-include"><details open="open"><summary class="spec include"><code><span><span class="keyword">include</span> <span class="keyword">module</span> <span class="keyword">type</span> <span class="keyword">of</span> <span class="keyword">struct</span> <span class="keyword">include</span> <a href="../../../opentelemetry/Opentelemetry/Tracer/index.html">Opentelemetry.Tracer</a> <span class="keyword">end</span></span></code></summary><div class="odoc-spec"><div class="spec type anchored" id="type-span"><a href="#type-span" class="anchor"></a><code><span><span class="keyword">type</span> span</span><span> = <a href="../../../opentelemetry/Opentelemetry_core/Span/index.html#type-t">Opentelemetry_core.Span.t</a></span></code></div></div><div class="odoc-spec"><div class="spec type anchored" id="type-t"><a href="#type-t" class="anchor"></a><code><span><span class="keyword">type</span> t</span><span> = <a href="../../../opentelemetry/Opentelemetry/Tracer/index.html#type-t">Opentelemetry.Tracer.t</a></span><span> = </span><span>{</span></code><ol><li id="type-t.emit" class="def record field anchored"><a href="#type-t.emit" class="anchor"></a><code><span>emit : <span><a href="../../../opentelemetry/Opentelemetry_core/Span/index.html#type-t">Opentelemetry_core.Span.t</a> <a href="../../../opentelemetry/Opentelemetry_emitter/Emitter/index.html#type-t">Opentelemetry_emitter.Emitter.t</a></span>;</span></code></li><li id="type-t.clock" class="def record field anchored"><a href="#type-t.clock" class="anchor"></a><code><span>clock : <a href="../../../opentelemetry/Opentelemetry_core/Clock/index.html#type-t">Opentelemetry_core.Clock.t</a>;</span></code></li></ol><code><span>}</span></code></div><div class="spec-doc"><p>A tracer.</p><p>https://opentelemetry.io/docs/specs/otel/trace/api/#tracer</p></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-dummy"><a href="#val-dummy" class="anchor"></a><code><span><span class="keyword">val</span> dummy : <a href="#type-t">t</a></span></code></div><div class="spec-doc"><p>Dummy tracer, always disabled</p></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-enabled"><a href="#val-enabled" class="anchor"></a><code><span><span class="keyword">val</span> enabled : <span><a href="#type-t">t</a> <span class="arrow">-></span></span> bool</span></code></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-of_exporter"><a href="#val-of_exporter" class="anchor"></a><code><span><span class="keyword">val</span> of_exporter : <span><a href="../../../opentelemetry/Opentelemetry_core/Exporter/index.html#type-t">Opentelemetry_core.Exporter.t</a> <span class="arrow">-></span></span> <a href="#type-t">t</a></span></code></div></div></details></div><div class="odoc-spec"><div class="spec value anchored" id="val-default"><a href="#val-default" class="anchor"></a><code><span><span class="keyword">val</span> default : <a href="../../../opentelemetry/Opentelemetry/Tracer/index.html#type-t">Opentelemetry.Tracer.t</a></span></code></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-with_thunk_and_finally"><a href="#val-with_thunk_and_finally" class="anchor"></a><code><span><span class="keyword">val</span> with_thunk_and_finally :
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<span><a href="../../../opentelemetry/Opentelemetry/Tracer/index.html#type-t">Opentelemetry.Tracer.t</a> <span class="arrow">-></span></span>
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<span><span class="optlabel">?force_new_trace_id</span>:bool <span class="arrow">-></span></span>
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<span><span class="optlabel">?trace_state</span>:string <span class="arrow">-></span></span>
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<span><span class="optlabel">?attrs</span>:<span><span>(string * <a href="../../../opentelemetry/Opentelemetry_core/Value/index.html#type-t">Opentelemetry_core.Value.t</a>)</span> list</span> <span class="arrow">-></span></span>
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<span><span class="optlabel">?kind</span>:<a href="../../../opentelemetry/Opentelemetry_core/Span/index.html#type-kind">Opentelemetry_core.Span.kind</a> <span class="arrow">-></span></span>
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<span><span class="optlabel">?trace_id</span>:<a href="../../../opentelemetry/Opentelemetry_core/Trace_id/index.html#type-t">Opentelemetry_core.Trace_id.t</a> <span class="arrow">-></span></span>
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<span><span class="optlabel">?parent</span>:<a href="../../../opentelemetry/Opentelemetry_core/Span/index.html#type-t">Opentelemetry_core.Span.t</a> <span class="arrow">-></span></span>
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<span><span class="optlabel">?links</span>:<span><a href="../../../opentelemetry/Opentelemetry_core/Span_link/index.html#type-t">Opentelemetry_core.Span_link.t</a> list</span> <span class="arrow">-></span></span>
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<span>string <span class="arrow">-></span></span>
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<span><span>(<span><a href="../../../opentelemetry/Opentelemetry_core/Span/index.html#type-t">Opentelemetry_core.Span.t</a> <span class="arrow">-></span></span> <span class="type-var">'a</span>)</span> <span class="arrow">-></span></span>
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<span>(<span>unit <span class="arrow">-></span></span> <span class="type-var">'a</span>)</span> * <span>(<span><span><span>(unit, exn * <a href="../../../ocaml/Stdlib/Printexc/index.html#type-raw_backtrace">Stdlib.Printexc.raw_backtrace</a>)</span> <a href="../../../ocaml/Stdlib/index.html#type-result">result</a></span> <span class="arrow">-></span></span> unit)</span></span></code></div></div></details></div><div class="odoc-spec"><div class="spec value anchored" id="val-with_"><a href="#val-with_" class="anchor"></a><code><span><span class="keyword">val</span> with_ :
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<span><span class="optlabel">?tracer</span>:<a href="../../../opentelemetry/Opentelemetry/Tracer/index.html#type-t">Opentelemetry.Tracer.t</a> <span class="arrow">-></span></span>
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<span><span class="optlabel">?force_new_trace_id</span>:bool <span class="arrow">-></span></span>
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<span><span class="optlabel">?trace_state</span>:string <span class="arrow">-></span></span>
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<span><span class="optlabel">?attrs</span>:<span><span>(string * <a href="../../../opentelemetry/Opentelemetry_core/Value/index.html#type-t">Opentelemetry_core.Value.t</a>)</span> list</span> <span class="arrow">-></span></span>
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<span><span class="optlabel">?kind</span>:<a href="../../../opentelemetry/Opentelemetry_core/Span/index.html#type-kind">Opentelemetry_core.Span.kind</a> <span class="arrow">-></span></span>
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<span><span class="optlabel">?trace_id</span>:<a href="../../../opentelemetry/Opentelemetry_core/Trace_id/index.html#type-t">Opentelemetry_core.Trace_id.t</a> <span class="arrow">-></span></span>
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<span><span class="optlabel">?parent</span>:<a href="../../../opentelemetry/Opentelemetry_core/Span/index.html#type-t">Opentelemetry_core.Span.t</a> <span class="arrow">-></span></span>
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<span><span class="optlabel">?links</span>:<span><a href="../../../opentelemetry/Opentelemetry_core/Span_link/index.html#type-t">Opentelemetry_core.Span_link.t</a> list</span> <span class="arrow">-></span></span>
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<span>string <span class="arrow">-></span></span>
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<span><span>(<span><a href="../../../opentelemetry/Opentelemetry_core/Span/index.html#type-t">Span.t</a> <span class="arrow">-></span></span> <span><span class="type-var">'a</span> <a href="../../../lwt/Lwt/index.html#type-t">Lwt.t</a></span>)</span> <span class="arrow">-></span></span>
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<span><span class="type-var">'a</span> <a href="../../../lwt/Lwt/index.html#type-t">Lwt.t</a></span></span></code></div><div class="spec-doc"><p>Sync span guard</p></div></div></div></body></html>
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