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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/servers/src/query_handler.rs`."><title>query_handler.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="servers" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0-nightly (fa3155a64 2025-09-30)" data-channel="nightly" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-828709d0.js" data-settings-js="settings-c38705f0.js" ><script src="../../static.files/storage-e2aeef58.js"></script><script defer src="../../static.files/src-script-813739b1.js"></script><script defer src="../../src-files.js"></script><script defer src="../../static.files/main-ce535bd0.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content"><div class="main-heading"><h1><div class="sub-heading">servers/</div>query_handler.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
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<a href=#2 id=2 data-nosnippet>2</a>//
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<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
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<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
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<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
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<a href=#6 id=6 data-nosnippet>6</a>//
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<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
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<a href=#8 id=8 data-nosnippet>8</a>//
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<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
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<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
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<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
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<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
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<a href=#14 id=14 data-nosnippet>14</a>
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<a href=#15 id=15 data-nosnippet>15</a></span><span class="doccomment">//! All query handler traits for various request protocols, like SQL or GRPC.
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<a href=#16 id=16 data-nosnippet>16</a>//!
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<a href=#17 id=17 data-nosnippet>17</a>//! Instance that wishes to support certain request protocol, just implement the corresponding
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<a href=#18 id=18 data-nosnippet>18</a>//! trait, the Server will handle codec for you.
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<a href=#19 id=19 data-nosnippet>19</a>//!
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<a href=#20 id=20 data-nosnippet>20</a>//! Note:
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<a href=#21 id=21 data-nosnippet>21</a>//! Query handlers are not confined to only handle read requests, they are expecting to handle
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<a href=#22 id=22 data-nosnippet>22</a>//! write requests too. So the "query" here not might seem ambiguity. However, "query" has been
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<a href=#23 id=23 data-nosnippet>23</a>//! used as some kind of "convention", it's the "Q" in "SQL". So we might better stick to the
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<a href=#24 id=24 data-nosnippet>24</a>//! word "query".
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<a href=#25 id=25 data-nosnippet>25</a>
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<a href=#26 id=26 data-nosnippet>26</a></span><span class="kw">pub mod </span>grpc;
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<a href=#27 id=27 data-nosnippet>27</a><span class="kw">pub mod </span>sql;
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<a href=#28 id=28 data-nosnippet>28</a>
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<a href=#29 id=29 data-nosnippet>29</a><span class="kw">use </span>std::collections::HashMap;
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<a href=#30 id=30 data-nosnippet>30</a><span class="kw">use </span>std::sync::Arc;
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<a href=#31 id=31 data-nosnippet>31</a>
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<a href=#32 id=32 data-nosnippet>32</a><span class="kw">use </span>api::prom_store::remote::ReadRequest;
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<a href=#33 id=33 data-nosnippet>33</a><span class="kw">use </span>api::v1::RowInsertRequests;
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<a href=#34 id=34 data-nosnippet>34</a><span class="kw">use </span>async_trait::async_trait;
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<a href=#35 id=35 data-nosnippet>35</a><span class="kw">use </span>catalog::CatalogManager;
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<a href=#36 id=36 data-nosnippet>36</a><span class="kw">use </span>common_query::Output;
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<a href=#37 id=37 data-nosnippet>37</a><span class="kw">use </span>datatypes::timestamp::TimestampNanosecond;
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<a href=#38 id=38 data-nosnippet>38</a><span class="kw">use </span>headers::HeaderValue;
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<a href=#39 id=39 data-nosnippet>39</a><span class="kw">use </span>log_query::LogQuery;
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<a href=#40 id=40 data-nosnippet>40</a><span class="kw">use </span>opentelemetry_proto::tonic::collector::logs::v1::ExportLogsServiceRequest;
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<a href=#41 id=41 data-nosnippet>41</a><span class="kw">use </span>opentelemetry_proto::tonic::collector::trace::v1::ExportTraceServiceRequest;
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<a href=#42 id=42 data-nosnippet>42</a><span class="kw">use </span>otel_arrow_rust::proto::opentelemetry::collector::metrics::v1::ExportMetricsServiceRequest;
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<a href=#43 id=43 data-nosnippet>43</a><span class="kw">use </span>pipeline::{GreptimePipelineParams, Pipeline, PipelineInfo, PipelineVersion, PipelineWay};
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<a href=#44 id=44 data-nosnippet>44</a><span class="kw">use </span>serde_json::Value;
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<a href=#45 id=45 data-nosnippet>45</a><span class="kw">use </span>session::context::{QueryContext, QueryContextRef};
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<a href=#46 id=46 data-nosnippet>46</a>
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<a href=#47 id=47 data-nosnippet>47</a><span class="kw">use </span><span class="kw">crate</span>::error::Result;
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<a href=#48 id=48 data-nosnippet>48</a><span class="kw">use </span><span class="kw">crate</span>::http::jaeger::QueryTraceParams;
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<a href=#49 id=49 data-nosnippet>49</a><span class="kw">use </span><span class="kw">crate</span>::influxdb::InfluxdbRequest;
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<a href=#50 id=50 data-nosnippet>50</a><span class="kw">use </span><span class="kw">crate</span>::opentsdb::codec::DataPoint;
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<a href=#51 id=51 data-nosnippet>51</a><span class="kw">use </span><span class="kw">crate</span>::prom_store::Metrics;
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<a href=#52 id=52 data-nosnippet>52</a><span class="kw">pub type </span>OpentsdbProtocolHandlerRef = Arc<<span class="kw">dyn </span>OpentsdbProtocolHandler + Send + Sync>;
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<a href=#53 id=53 data-nosnippet>53</a><span class="kw">pub type </span>InfluxdbLineProtocolHandlerRef = Arc<<span class="kw">dyn </span>InfluxdbLineProtocolHandler + Send + Sync>;
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<a href=#54 id=54 data-nosnippet>54</a><span class="kw">pub type </span>PromStoreProtocolHandlerRef = Arc<<span class="kw">dyn </span>PromStoreProtocolHandler + Send + Sync>;
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<a href=#55 id=55 data-nosnippet>55</a><span class="kw">pub type </span>OpenTelemetryProtocolHandlerRef = Arc<<span class="kw">dyn </span>OpenTelemetryProtocolHandler + Send + Sync>;
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<a href=#56 id=56 data-nosnippet>56</a><span class="kw">pub type </span>PipelineHandlerRef = Arc<<span class="kw">dyn </span>PipelineHandler + Send + Sync>;
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<a href=#57 id=57 data-nosnippet>57</a><span class="kw">pub type </span>LogQueryHandlerRef = Arc<<span class="kw">dyn </span>LogQueryHandler + Send + Sync>;
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<a href=#58 id=58 data-nosnippet>58</a><span class="kw">pub type </span>JaegerQueryHandlerRef = Arc<<span class="kw">dyn </span>JaegerQueryHandler + Send + Sync>;
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<a href=#59 id=59 data-nosnippet>59</a>
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<a href=#60 id=60 data-nosnippet>60</a><span class="attr">#[async_trait]
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<a href=#61 id=61 data-nosnippet>61</a></span><span class="kw">pub trait </span>InfluxdbLineProtocolHandler {
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<a href=#62 id=62 data-nosnippet>62</a> <span class="doccomment">/// A successful request will not return a response.
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<a href=#63 id=63 data-nosnippet>63</a> /// Only on error will the socket return a line of data.
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<a href=#64 id=64 data-nosnippet>64</a> </span><span class="kw">async fn </span>exec(<span class="kw-2">&</span><span class="self">self</span>, request: InfluxdbRequest, ctx: QueryContextRef) -> <span class="prelude-ty">Result</span><Output>;
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<a href=#65 id=65 data-nosnippet>65</a>}
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<a href=#66 id=66 data-nosnippet>66</a>
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<a href=#67 id=67 data-nosnippet>67</a><span class="attr">#[async_trait]
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<a href=#68 id=68 data-nosnippet>68</a></span><span class="kw">pub trait </span>OpentsdbProtocolHandler {
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<a href=#69 id=69 data-nosnippet>69</a> <span class="doccomment">/// A successful request will not return a response.
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<a href=#70 id=70 data-nosnippet>70</a> /// Only on error will the socket return a line of data.
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<a href=#71 id=71 data-nosnippet>71</a> </span><span class="kw">async fn </span>exec(<span class="kw-2">&</span><span class="self">self</span>, data_points: Vec<DataPoint>, ctx: QueryContextRef) -> <span class="prelude-ty">Result</span><usize>;
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<a href=#72 id=72 data-nosnippet>72</a>}
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<a href=#73 id=73 data-nosnippet>73</a>
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<a href=#74 id=74 data-nosnippet>74</a><span class="kw">pub struct </span>PromStoreResponse {
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<a href=#75 id=75 data-nosnippet>75</a> <span class="kw">pub </span>content_type: HeaderValue,
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<a href=#76 id=76 data-nosnippet>76</a> <span class="kw">pub </span>content_encoding: HeaderValue,
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<a href=#77 id=77 data-nosnippet>77</a> <span class="kw">pub </span>resp_metrics: HashMap<String, Value>,
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<a href=#78 id=78 data-nosnippet>78</a> <span class="kw">pub </span>body: Vec<u8>,
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<a href=#79 id=79 data-nosnippet>79</a>}
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<a href=#80 id=80 data-nosnippet>80</a>
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<a href=#81 id=81 data-nosnippet>81</a><span class="attr">#[async_trait]
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<a href=#82 id=82 data-nosnippet>82</a></span><span class="kw">pub trait </span>PromStoreProtocolHandler {
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<a href=#83 id=83 data-nosnippet>83</a> <span class="doccomment">/// Handling prometheus remote write requests
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<a href=#84 id=84 data-nosnippet>84</a> </span><span class="kw">async fn </span>write(
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<a href=#85 id=85 data-nosnippet>85</a> <span class="kw-2">&</span><span class="self">self</span>,
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<a href=#86 id=86 data-nosnippet>86</a> request: RowInsertRequests,
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<a href=#87 id=87 data-nosnippet>87</a> ctx: QueryContextRef,
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<a href=#88 id=88 data-nosnippet>88</a> with_metric_engine: bool,
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<a href=#89 id=89 data-nosnippet>89</a> ) -> <span class="prelude-ty">Result</span><Output>;
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<a href=#90 id=90 data-nosnippet>90</a>
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<a href=#91 id=91 data-nosnippet>91</a> <span class="doccomment">/// Handling prometheus remote read requests
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<a href=#92 id=92 data-nosnippet>92</a> </span><span class="kw">async fn </span>read(<span class="kw-2">&</span><span class="self">self</span>, request: ReadRequest, ctx: QueryContextRef) -> <span class="prelude-ty">Result</span><PromStoreResponse>;
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<a href=#93 id=93 data-nosnippet>93</a> <span class="doccomment">/// Handling push gateway requests
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<a href=#94 id=94 data-nosnippet>94</a> </span><span class="kw">async fn </span>ingest_metrics(<span class="kw-2">&</span><span class="self">self</span>, metrics: Metrics) -> <span class="prelude-ty">Result</span><()>;
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<a href=#95 id=95 data-nosnippet>95</a>}
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<a href=#96 id=96 data-nosnippet>96</a>
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<a href=#97 id=97 data-nosnippet>97</a><span class="attr">#[async_trait]
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<a href=#98 id=98 data-nosnippet>98</a></span><span class="kw">pub trait </span>OpenTelemetryProtocolHandler: PipelineHandler {
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<a href=#99 id=99 data-nosnippet>99</a> <span class="doccomment">/// Handling opentelemetry metrics request
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<a href=#100 id=100 data-nosnippet>100</a> </span><span class="kw">async fn </span>metrics(
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<a href=#101 id=101 data-nosnippet>101</a> <span class="kw-2">&</span><span class="self">self</span>,
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<a href=#102 id=102 data-nosnippet>102</a> request: ExportMetricsServiceRequest,
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<a href=#103 id=103 data-nosnippet>103</a> ctx: QueryContextRef,
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<a href=#104 id=104 data-nosnippet>104</a> ) -> <span class="prelude-ty">Result</span><Output>;
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<a href=#105 id=105 data-nosnippet>105</a>
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<a href=#106 id=106 data-nosnippet>106</a> <span class="doccomment">/// Handling opentelemetry traces request
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<a href=#107 id=107 data-nosnippet>107</a> </span><span class="kw">async fn </span>traces(
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<a href=#108 id=108 data-nosnippet>108</a> <span class="kw-2">&</span><span class="self">self</span>,
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<a href=#109 id=109 data-nosnippet>109</a> pipeline_handler: PipelineHandlerRef,
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<a href=#110 id=110 data-nosnippet>110</a> request: ExportTraceServiceRequest,
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<a href=#111 id=111 data-nosnippet>111</a> pipeline: PipelineWay,
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<a href=#112 id=112 data-nosnippet>112</a> pipeline_params: GreptimePipelineParams,
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<a href=#113 id=113 data-nosnippet>113</a> table_name: String,
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<a href=#114 id=114 data-nosnippet>114</a> ctx: QueryContextRef,
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<a href=#115 id=115 data-nosnippet>115</a> ) -> <span class="prelude-ty">Result</span><Output>;
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<a href=#116 id=116 data-nosnippet>116</a>
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<a href=#117 id=117 data-nosnippet>117</a> <span class="kw">async fn </span>logs(
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<a href=#118 id=118 data-nosnippet>118</a> <span class="kw-2">&</span><span class="self">self</span>,
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<a href=#119 id=119 data-nosnippet>119</a> pipeline_handler: PipelineHandlerRef,
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<a href=#120 id=120 data-nosnippet>120</a> request: ExportLogsServiceRequest,
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<a href=#121 id=121 data-nosnippet>121</a> pipeline: PipelineWay,
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<a href=#122 id=122 data-nosnippet>122</a> pipeline_params: GreptimePipelineParams,
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<a href=#123 id=123 data-nosnippet>123</a> table_name: String,
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<a href=#124 id=124 data-nosnippet>124</a> ctx: QueryContextRef,
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<a href=#125 id=125 data-nosnippet>125</a> ) -> <span class="prelude-ty">Result</span><Vec<Output>>;
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<a href=#126 id=126 data-nosnippet>126</a>}
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<a href=#127 id=127 data-nosnippet>127</a>
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<a href=#128 id=128 data-nosnippet>128</a><span class="doccomment">/// PipelineHandler is responsible for handling pipeline related requests.
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<a href=#129 id=129 data-nosnippet>129</a>///
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<a href=#130 id=130 data-nosnippet>130</a>/// The "Pipeline" is a series of transformations that can be applied to unstructured
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<a href=#131 id=131 data-nosnippet>131</a>/// data like logs. This handler is responsible to manage pipelines and accept data for
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<a href=#132 id=132 data-nosnippet>132</a>/// processing.
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<a href=#133 id=133 data-nosnippet>133</a>///
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<a href=#134 id=134 data-nosnippet>134</a>/// The pipeline is stored in the database and can be retrieved by its name.
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<a href=#135 id=135 data-nosnippet>135</a></span><span class="attr">#[async_trait]
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<a href=#136 id=136 data-nosnippet>136</a></span><span class="kw">pub trait </span>PipelineHandler {
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<a href=#137 id=137 data-nosnippet>137</a> <span class="kw">async fn </span>insert(<span class="kw-2">&</span><span class="self">self</span>, input: RowInsertRequests, ctx: QueryContextRef) -> <span class="prelude-ty">Result</span><Output>;
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<a href=#138 id=138 data-nosnippet>138</a>
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<a href=#139 id=139 data-nosnippet>139</a> <span class="kw">async fn </span>get_pipeline(
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<a href=#140 id=140 data-nosnippet>140</a> <span class="kw-2">&</span><span class="self">self</span>,
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<a href=#141 id=141 data-nosnippet>141</a> name: <span class="kw-2">&</span>str,
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<a href=#142 id=142 data-nosnippet>142</a> version: PipelineVersion,
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<a href=#143 id=143 data-nosnippet>143</a> query_ctx: QueryContextRef,
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<a href=#144 id=144 data-nosnippet>144</a> ) -> <span class="prelude-ty">Result</span><Arc<Pipeline>>;
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<a href=#145 id=145 data-nosnippet>145</a>
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<a href=#146 id=146 data-nosnippet>146</a> <span class="kw">async fn </span>insert_pipeline(
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<a href=#147 id=147 data-nosnippet>147</a> <span class="kw-2">&</span><span class="self">self</span>,
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<a href=#148 id=148 data-nosnippet>148</a> name: <span class="kw-2">&</span>str,
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<a href=#149 id=149 data-nosnippet>149</a> content_type: <span class="kw-2">&</span>str,
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<a href=#150 id=150 data-nosnippet>150</a> pipeline: <span class="kw-2">&</span>str,
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<a href=#151 id=151 data-nosnippet>151</a> query_ctx: QueryContextRef,
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<a href=#152 id=152 data-nosnippet>152</a> ) -> <span class="prelude-ty">Result</span><PipelineInfo>;
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<a href=#153 id=153 data-nosnippet>153</a>
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<a href=#154 id=154 data-nosnippet>154</a> <span class="kw">async fn </span>delete_pipeline(
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<a href=#155 id=155 data-nosnippet>155</a> <span class="kw-2">&</span><span class="self">self</span>,
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<a href=#156 id=156 data-nosnippet>156</a> name: <span class="kw-2">&</span>str,
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<a href=#157 id=157 data-nosnippet>157</a> version: PipelineVersion,
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<a href=#158 id=158 data-nosnippet>158</a> query_ctx: QueryContextRef,
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<a href=#159 id=159 data-nosnippet>159</a> ) -> <span class="prelude-ty">Result</span><<span class="prelude-ty">Option</span><()>>;
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<a href=#160 id=160 data-nosnippet>160</a>
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<a href=#161 id=161 data-nosnippet>161</a> <span class="kw">async fn </span>get_table(
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<a href=#162 id=162 data-nosnippet>162</a> <span class="kw-2">&</span><span class="self">self</span>,
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<a href=#163 id=163 data-nosnippet>163</a> table: <span class="kw-2">&</span>str,
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<a href=#164 id=164 data-nosnippet>164</a> query_ctx: <span class="kw-2">&</span>QueryContext,
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<a href=#165 id=165 data-nosnippet>165</a> ) -> std::result::Result<<span class="prelude-ty">Option</span><Arc<table::Table>>, catalog::error::Error>;
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<a href=#166 id=166 data-nosnippet>166</a>
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<a href=#167 id=167 data-nosnippet>167</a> <span class="comment">//// Build a pipeline from a string.
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<a href=#168 id=168 data-nosnippet>168</a> </span><span class="kw">fn </span>build_pipeline(<span class="kw-2">&</span><span class="self">self</span>, pipeline: <span class="kw-2">&</span>str) -> <span class="prelude-ty">Result</span><Pipeline>;
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<a href=#169 id=169 data-nosnippet>169</a>
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<a href=#170 id=170 data-nosnippet>170</a> <span class="doccomment">/// Get a original pipeline by name.
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<a href=#171 id=171 data-nosnippet>171</a> </span><span class="kw">async fn </span>get_pipeline_str(
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<a href=#172 id=172 data-nosnippet>172</a> <span class="kw-2">&</span><span class="self">self</span>,
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<a href=#173 id=173 data-nosnippet>173</a> name: <span class="kw-2">&</span>str,
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<a href=#174 id=174 data-nosnippet>174</a> version: PipelineVersion,
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<a href=#175 id=175 data-nosnippet>175</a> query_ctx: QueryContextRef,
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<a href=#176 id=176 data-nosnippet>176</a> ) -> <span class="prelude-ty">Result</span><(String, TimestampNanosecond)>;
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<a href=#177 id=177 data-nosnippet>177</a>}
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<a href=#178 id=178 data-nosnippet>178</a>
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<a href=#179 id=179 data-nosnippet>179</a><span class="doccomment">/// Handle log query requests.
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<a href=#180 id=180 data-nosnippet>180</a></span><span class="attr">#[async_trait]
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<a href=#181 id=181 data-nosnippet>181</a></span><span class="kw">pub trait </span>LogQueryHandler {
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<a href=#182 id=182 data-nosnippet>182</a> <span class="doccomment">/// Execute a log query.
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<a href=#183 id=183 data-nosnippet>183</a> </span><span class="kw">async fn </span>query(<span class="kw-2">&</span><span class="self">self</span>, query: LogQuery, ctx: QueryContextRef) -> <span class="prelude-ty">Result</span><Output>;
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<a href=#184 id=184 data-nosnippet>184</a>
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<a href=#185 id=185 data-nosnippet>185</a> <span class="doccomment">/// Get catalog manager.
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<a href=#186 id=186 data-nosnippet>186</a> </span><span class="kw">fn </span>catalog_manager(<span class="kw-2">&</span><span class="self">self</span>, ctx: <span class="kw-2">&</span>QueryContext) -> <span class="prelude-ty">Result</span><<span class="kw-2">&</span><span class="kw">dyn </span>CatalogManager>;
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<a href=#187 id=187 data-nosnippet>187</a>}
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<a href=#188 id=188 data-nosnippet>188</a>
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<a href=#189 id=189 data-nosnippet>189</a><span class="doccomment">/// Handle Jaeger query requests.
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<a href=#190 id=190 data-nosnippet>190</a></span><span class="attr">#[async_trait]
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<a href=#191 id=191 data-nosnippet>191</a></span><span class="kw">pub trait </span>JaegerQueryHandler {
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<a href=#192 id=192 data-nosnippet>192</a> <span class="doccomment">/// Get trace services. It's used for `/api/services` API.
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<a href=#193 id=193 data-nosnippet>193</a> </span><span class="kw">async fn </span>get_services(<span class="kw-2">&</span><span class="self">self</span>, ctx: QueryContextRef) -> <span class="prelude-ty">Result</span><Output>;
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<a href=#194 id=194 data-nosnippet>194</a>
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<a href=#195 id=195 data-nosnippet>195</a> <span class="doccomment">/// Get Jaeger operations. It's used for `/api/operations` and `/api/services/{service_name}/operations` API.
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<a href=#196 id=196 data-nosnippet>196</a> </span><span class="kw">async fn </span>get_operations(
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<a href=#197 id=197 data-nosnippet>197</a> <span class="kw-2">&</span><span class="self">self</span>,
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<a href=#198 id=198 data-nosnippet>198</a> ctx: QueryContextRef,
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<a href=#199 id=199 data-nosnippet>199</a> service_name: <span class="kw-2">&</span>str,
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<a href=#200 id=200 data-nosnippet>200</a> span_kind: <span class="prelude-ty">Option</span><<span class="kw-2">&</span>str>,
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<a href=#201 id=201 data-nosnippet>201</a> ) -> <span class="prelude-ty">Result</span><Output>;
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<a href=#202 id=202 data-nosnippet>202</a>
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<a href=#203 id=203 data-nosnippet>203</a> <span class="doccomment">/// Retrieves a trace by its unique identifier.
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<a href=#204 id=204 data-nosnippet>204</a> ///
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<a href=#205 id=205 data-nosnippet>205</a> /// This method is used to handle requests to the `/api/traces/{trace_id}` endpoint.
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<a href=#206 id=206 data-nosnippet>206</a> /// It accepts optional `start_time` and `end_time` parameters in nanoseconds to filter the trace data within a specific time range.
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<a href=#207 id=207 data-nosnippet>207</a> </span><span class="kw">async fn </span>get_trace(
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<a href=#208 id=208 data-nosnippet>208</a> <span class="kw-2">&</span><span class="self">self</span>,
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<a href=#209 id=209 data-nosnippet>209</a> ctx: QueryContextRef,
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<a href=#210 id=210 data-nosnippet>210</a> trace_id: <span class="kw-2">&</span>str,
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<a href=#211 id=211 data-nosnippet>211</a> start_time: <span class="prelude-ty">Option</span><i64>,
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<a href=#212 id=212 data-nosnippet>212</a> end_time: <span class="prelude-ty">Option</span><i64>,
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<a href=#213 id=213 data-nosnippet>213</a> limit: <span class="prelude-ty">Option</span><usize>,
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<a href=#214 id=214 data-nosnippet>214</a> ) -> <span class="prelude-ty">Result</span><Output>;
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<a href=#215 id=215 data-nosnippet>215</a>
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<a href=#216 id=216 data-nosnippet>216</a> <span class="doccomment">/// Find traces by query params. It's used for `/api/traces` API.
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<a href=#217 id=217 data-nosnippet>217</a> </span><span class="kw">async fn </span>find_traces(
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<a href=#218 id=218 data-nosnippet>218</a> <span class="kw-2">&</span><span class="self">self</span>,
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<a href=#219 id=219 data-nosnippet>219</a> ctx: QueryContextRef,
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<a href=#220 id=220 data-nosnippet>220</a> query_params: QueryTraceParams,
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<a href=#221 id=221 data-nosnippet>221</a> ) -> <span class="prelude-ty">Result</span><Output>;
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<a href=#222 id=222 data-nosnippet>222</a>}</code></pre></div></section></main></body></html> |