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<html xmlns="http://www.w3.org/1999/xhtml"><head><title>Logs (opentelemetry.Opentelemetry.Logs)</title><link rel="stylesheet" href="../../../odoc.css"/><meta charset="utf-8"/><meta name="generator" content="odoc 2.1.0"/><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">opentelemetry</a> » <a href="../index.html">Opentelemetry</a> » Logs</nav><header class="odoc-preamble"><h1>Module <code><span>Opentelemetry.Logs</span></code></h1><p>Logs.</p><p>See <a href="https://opentelemetry.io/docs/reference/specification/overview/#log-signal">the spec</a></p><p>A set of callbacks that produce metrics when called. The metrics are automatically called regularly.</p><p>This allows applications to register metrics callbacks from various points in the program (or even in libraries), and not worry about setting alarms/intervals to emit them.</p></header><div class="odoc-content"><div class="odoc-spec"><div class="spec type" id="type-t" class="anchored"><a href="#type-t" class="anchor"></a><code><span><span class="keyword">type</span> t</span></code></div></div><div class="odoc-spec"><div class="spec type" id="type-severity" class="anchored"><a href="#type-severity" class="anchor"></a><code><span><span class="keyword">type</span> severity</span><span> = </span></code><table><tr id="type-severity.Severity_number_unspecified" class="anchored"><td class="def variant constructor"><a href="#type-severity.Severity_number_unspecified" class="anchor"></a><code><span>| </span><span><span class="constructor">Severity_number_unspecified</span></span></code></td></tr><tr id="type-severity.Severity_number_trace" class="anchored"><td class="def variant constructor"><a href="#type-severity.Severity_number_trace" class="anchor"></a><code><span>| </span><span><span class="constructor">Severity_number_trace</span></span></code></td></tr><tr id="type-severity.Severity_number_trace2" class="anchored"><td class="def variant constructor"><a href="#type-severity.Severity_number_trace2" class="anchor"></a><code><span>| </span><span><span class="constructor">Severity_number_trace2</span></span></code></td></tr><tr id="type-severity.Severity_number_trace3" class="anchored"><td class="def variant constructor"><a href="#type-severity.Severity_number_trace3" class="anchor"></a><code><span>| </span><span><span class="constructor">Severity_number_trace3</span></span></code></td></tr><tr id="type-severity.Severity_number_trace4" class="anchored"><td class="def variant constructor"><a href="#type-severity.Severity_number_trace4" class="anchor"></a><code><span>| </span><span><span class="constructor">Severity_number_trace4</span></span></code></td></tr><tr id="type-severity.Severity_number_debug" class="anchored"><td class="def variant constructor"><a href="#type-severity.Severity_number_debug" class="anchor"></a><code><span>| </span><span><span class="constructor">Severity_number_debug</span></span></code></td></tr><tr id="type-severity.Severity_number_debug2" class="anchored"><td class="def variant constructor"><a href="#type-severity.Severity_number_debug2" class="anchor"></a><code><span>| </span><span><span class="constructor">Severity_number_debug2</span></span></code></td></tr><tr id="type-severity.Severity_number_debug3" class="anchored"><td class="def variant constructor"><a href="#type-severity.Severity_number_debug3" class="anchor"></a><code><span>| </span><span><span class="constructor">Severity_number_debug3</span></span></code></td></tr><tr id="type-severity.Severity_number_debug4" class="anchored"><td class="def variant constructor"><a href="#type-severity.Severity_number_debug4" class="anchor"></a><code><span>| </span><span><span class="constructor">Severity_number_debug4</span></span></code></td></tr><tr id="type-severity.Severity_number_info" class="anchored"><td class="def variant constructor"><a href="#type-severity.Severity_number_info" class="anchor"></a><code><span>| </span><span><span class="constructor">Severity_number_info</span></span></code></td></tr><tr id="type-severity.Severity_number_info2" class="anchored"><td class="def variant constructor"><a href="#type-severity.Severity_number_info2" class="anchor"></a><code><span>| </span><span><span class="constructor">Severity_number_info2</span></span></code></td></tr><tr id="type-severity.Severity_number_info3" class="anchored"><td class="def variant constructor"><a href="#type-severity.Severity_number_info3" class="anchor"></a><code><span>| </span><span><span class="constructor">Severity_number_info3</span></span></code></td></tr><tr id="type-severity.Severity_number_info4" class="anchored"><td class="def variant constructor"><a href="#type-severity.Severity_number_info4" class="anchor"></a><code><span>| </span><span><span class="constructor">Severity_number_info4</span></span></code></td></tr><tr id="type-severity.Severity_number_warn" class="anchored"><td class="def variant constructor"><a href="#type-severity.Severity_number_warn" class="anchor"></a><code><span>| </span><span><span class="constructor">Severity_number_warn</span></span></code></td></tr><tr id="type-severity.Severity_number_warn2" class="anchored"><td class="def variant constructor"><a href="#type-severity.Severity_number_warn2" class="anchor"></a><code><span>| </span><span><span class="constructor">Severity_number_warn2</span></span></code></td></tr><tr id="type-severity.Severity_number_warn3" class="anchored"><td class="def variant constructor"><a href="#type-severity.Severity_number_warn3" class="anchor"></a><code><span>| </span><span><span class="constructor">Severity_number_warn3</span></span></code></td></tr><tr id="type-severity.Severity_number_warn4" class="anchored"><td class="def variant constructor"><a href="#type-severity.Severity_number_warn4" class="anchor"></a><code><span>| </span><span><span class="constructor">Severity_number_warn4</span></span></code></td></tr><tr id="type-severity.Severity_number_error" class="anchored"><td class="def variant constructor"><a href="#type-severity.Severity_number_error" class="anchor"></a><code><span>| </span><span><span class="constructor">Severity_number_error</span></span></code></td></tr><tr id="type-severity.Severity_number_error2" class="anchored"><td class="def variant constructor"><a href="#type-severity.Severity_number_error2" class="anchor"></a><code><span>| </span><span><span class="constructor">Severity_number_error2</span></span></code></td></tr><tr id="type-severity.Severity_number_error3" class="anchored"><td class="def variant constructor"><a href="#type-severity.Severity_number_error3" class="anchor"></a><code><span>| </span><span><span class="constructor">Severity_number_error3</span></span></code></td></tr><tr id="type-severity.Severity_number_error4" class="anchored"><td class="def variant constructor"><a href="#type-severity.Severity_number_error4" class="anchor"></a><code><span>| </span><span><span class="constructor">Severity_number_error4</span></span></code></td></tr><tr id="type-severity.Severity_number_fatal" class="anchored"><td class="def variant constructor"><a href="#type-severity.Severity_number_fatal" class="anchor"></a><code><span>| </span><span><span class="constructor">Severity_number_fatal</span></span></code></td></tr><tr id="type-severity.Severity_number_fatal2" class="anchored"><td class="def variant constructor"><a href="#type-severity.Severity_number_fatal2" class="anchor"></a><code><span>| </span><span><span class="constructor">Severity_number_fatal2</span></span></code></td></tr><tr id="type-severity.Severity_number_fatal3" class="anchored"><td class="def variant constructor"><a href="#type-severity.Severity_number_fatal3" class="anchor"></a><code><span>| </span><span><span class="constructor">Severity_number_fatal3</span></span></code></td></tr><tr id="type-severity.Severity_number_fatal4" class="anchored"><td class="def variant constructor"><a href="#type-severity.Severity_number_fatal4" class="anchor"></a><code><span>| </span><span><span class="constructor">Severity_number_fatal4</span></span></code></td></tr></table></div><div class="spec-doc"><p>Severity level of a log event</p></div></div><div class="odoc-spec"><div class="spec value" id="val-pp_severity" class="anchored"><a href="#val-pp_severity" class="anchor"></a><code><span><span class="keyword">val</span> pp_severity :
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<span><span class="xref-unresolved">Stdlib</span>.Format.formatter <span class="arrow">-></span></span>
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<span><span class="xref-unresolved">Opentelemetry__Logs_types.severity_number</span> <span class="arrow">-></span></span>
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unit</span></code></div></div><div class="odoc-spec"><div class="spec type" id="type-flags" class="anchored"><a href="#type-flags" class="anchor"></a><code><span><span class="keyword">type</span> flags</span><span> = </span></code><table><tr id="type-flags.Log_record_flag_unspecified" class="anchored"><td class="def variant constructor"><a href="#type-flags.Log_record_flag_unspecified" class="anchor"></a><code><span>| </span><span><span class="constructor">Log_record_flag_unspecified</span></span></code></td></tr><tr id="type-flags.Log_record_flag_trace_flags_mask" class="anchored"><td class="def variant constructor"><a href="#type-flags.Log_record_flag_trace_flags_mask" class="anchor"></a><code><span>| </span><span><span class="constructor">Log_record_flag_trace_flags_mask</span></span></code></td></tr></table></div></div><div class="odoc-spec"><div class="spec value" id="val-pp_flags" class="anchored"><a href="#val-pp_flags" class="anchor"></a><code><span><span class="keyword">val</span> pp_flags :
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<span><span class="xref-unresolved">Stdlib</span>.Format.formatter <span class="arrow">-></span></span>
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<span><span class="xref-unresolved">Opentelemetry__Logs_types.log_record_flags</span> <span class="arrow">-></span></span>
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unit</span></code></div></div><div class="odoc-spec"><div class="spec value" id="val-make" class="anchored"><a href="#val-make" class="anchor"></a><code><span><span class="keyword">val</span> make :
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<span>?time:<a href="../Timestamp_ns/index.html#type-t">Timestamp_ns.t</a> <span class="arrow">-></span></span>
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<span>?observed_time_unix_nano:<a href="../Timestamp_ns/index.html#type-t">Timestamp_ns.t</a> <span class="arrow">-></span></span>
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<span>?severity:<span class="xref-unresolved">Opentelemetry__Logs_types.severity_number</span> <span class="arrow">-></span></span>
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<span>?log_level:string <span class="arrow">-></span></span>
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<span>?flags:int32 <span class="arrow">-></span></span>
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<span>?trace_id:<a href="../Trace_id/index.html#type-t">Trace_id.t</a> <span class="arrow">-></span></span>
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<span>?span_id:<a href="../Span_id/index.html#type-t">Span_id.t</a> <span class="arrow">-></span></span>
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<span><a href="../index.html#type-value">value</a> <span class="arrow">-></span></span>
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<a href="#type-t">t</a></span></code></div><div class="spec-doc"><p>Make a single log entry</p></div></div><div class="odoc-spec"><div class="spec value" id="val-make_str" class="anchored"><a href="#val-make_str" class="anchor"></a><code><span><span class="keyword">val</span> make_str :
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<span>?time:<a href="../Timestamp_ns/index.html#type-t">Timestamp_ns.t</a> <span class="arrow">-></span></span>
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<span>?observed_time_unix_nano:<a href="../Timestamp_ns/index.html#type-t">Timestamp_ns.t</a> <span class="arrow">-></span></span>
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<span>?severity:<span class="xref-unresolved">Opentelemetry__Logs_types.severity_number</span> <span class="arrow">-></span></span>
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<span>?log_level:string <span class="arrow">-></span></span>
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<span>?flags:int32 <span class="arrow">-></span></span>
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<span>?trace_id:<a href="../Trace_id/index.html#type-t">Trace_id.t</a> <span class="arrow">-></span></span>
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<span>?span_id:<a href="../Span_id/index.html#type-t">Span_id.t</a> <span class="arrow">-></span></span>
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<span>string <span class="arrow">-></span></span>
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<a href="#type-t">t</a></span></code></div><div class="spec-doc"><p>Make a log entry whose body is a string</p></div></div><div class="odoc-spec"><div class="spec value" id="val-make_strf" class="anchored"><a href="#val-make_strf" class="anchor"></a><code><span><span class="keyword">val</span> make_strf :
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<span>?time:<a href="../Timestamp_ns/index.html#type-t">Timestamp_ns.t</a> <span class="arrow">-></span></span>
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<span>?observed_time_unix_nano:<a href="../Timestamp_ns/index.html#type-t">Timestamp_ns.t</a> <span class="arrow">-></span></span>
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<span>?severity:<span class="xref-unresolved">Opentelemetry__Logs_types.severity_number</span> <span class="arrow">-></span></span>
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<span>?log_level:string <span class="arrow">-></span></span>
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<span>?flags:int32 <span class="arrow">-></span></span>
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<span>?trace_id:<a href="../Trace_id/index.html#type-t">Trace_id.t</a> <span class="arrow">-></span></span>
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<span>?span_id:<a href="../Span_id/index.html#type-t">Span_id.t</a> <span class="arrow">-></span></span>
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<span><span><span>( <span class="type-var">'a</span>, <span class="xref-unresolved">Stdlib</span>.Format.formatter, unit, <a href="#type-t">t</a> )</span> <span class="xref-unresolved">Stdlib</span>.format4</span> <span class="arrow">-></span></span>
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<span class="type-var">'a</span></span></code></div><div class="spec-doc"><p>Make a log entry with format</p></div></div><div class="odoc-spec"><div class="spec value" id="val-emit" class="anchored"><a href="#val-emit" class="anchor"></a><code><span><span class="keyword">val</span> emit :
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<span>?service_name:string <span class="arrow">-></span></span>
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<span>?attrs:
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<span><span>(string * <span>[< <span>`Bool of bool</span> <span><span>| `Int</span> of int</span> <span>| `None</span> <span><span>| `String</span> of string</span> ]</span>)</span>
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list</span> <span class="arrow">-></span></span>
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<span><span><a href="#type-t">t</a> list</span> <span class="arrow">-></span></span>
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unit</span></code></div></div></div></body></html> |