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<html xmlns="http://www.w3.org/1999/xhtml"><head><title>Traceparent (opentelemetry.Opentelemetry.Trace_context.Traceparent)</title><meta charset="utf-8"/><link rel="stylesheet" href="../../../../_odoc-theme/odoc.css"/><meta name="generator" content="odoc 2.4.3"/><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">opentelemetry</a> » <a href="../../index.html">Opentelemetry</a> » <a href="../index.html">Trace_context</a> » Traceparent</nav><header class="odoc-preamble"><h1>Module <code><span>Trace_context.Traceparent</span></code></h1><p>The traceparent header https://www.w3.org/TR/trace-context/#traceparent-header</p></header><div class="odoc-content"><div class="odoc-spec"><div class="spec value anchored" id="val-name"><a href="#val-name" class="anchor"></a><code><span><span class="keyword">val</span> name : string</span></code></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-of_value"><a href="#val-of_value" class="anchor"></a><code><span><span class="keyword">val</span> of_value : <span>string <span class="arrow">-></span></span> <span><span>(<a href="../../Trace_id/index.html#type-t">Trace_id.t</a> * <a href="../../Span_id/index.html#type-t">Span_id.t</a>, string)</span> <a href="../../../../ocaml/Stdlib/index.html#type-result">result</a></span></span></code></div><div class="spec-doc"><p>Parse the value of the traceparent header.</p><p>The values are of the form:</p><pre class="language-ocaml"><code>{version}-{trace_id}-{parent_id}-{flags}</code></pre><p>For example:</p><pre class="language-ocaml"><code>00-4bf92f3577b34da6a3ce929d0e0e4736-00f067aa0ba902b7-01 </code></pre><p><code>{flags}</code> are currently ignored.</p></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-to_value"><a href="#val-to_value" class="anchor"></a><code><span><span class="keyword">val</span> to_value : <span><span class="label">trace_id</span>:<a href="../../Trace_id/index.html#type-t">Trace_id.t</a> <span class="arrow">-></span></span> <span><span class="label">parent_id</span>:<a href="../../Span_id/index.html#type-t">Span_id.t</a> <span class="arrow">-></span></span> <span>unit <span class="arrow">-></span></span> string</span></code></div></div></div></body></html>
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