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id="toc"><!--[--><!----><!--]--><div class="toc-header">On This Page<button type="button" class="print-button" title="Print"><svg xmlns="http://www.w3.org/2000/svg" class="icon print-icon" viewBox="0 0 1024 1024" fill="currentColor" aria-label="print icon"><path d="M819.2 364.8h-44.8V128c0-17.067-14.933-32-32-32H281.6c-17.067 0-32 14.933-32 32v236.8h-44.8C145.067 364.8 96 413.867 96 473.6v192c0 59.733 49.067 108.8 108.8 108.8h44.8V896c0 17.067 14.933 32 32 32h460.8c17.067 0 32-14.933 32-32V774.4h44.8c59.733 0 108.8-49.067 108.8-108.8v-192c0-59.733-49.067-108.8-108.8-108.8zM313.6 160h396.8v204.8H313.6V160zm396.8 704H313.6V620.8h396.8V864zM864 665.6c0 25.6-19.2 44.8-44.8 44.8h-44.8V588.8c0-17.067-14.933-32-32-32H281.6c-17.067 0-32 14.933-32 32v121.6h-44.8c-25.6 0-44.8-19.2-44.8-44.8v-192c0-25.6 19.2-44.8 44.8-44.8h614.4c25.6 0 44.8 19.2 44.8 44.8v192z"></path></svg></button></div><div class="toc-wrapper"><ul class="toc-list"><!--[--><li class="toc-item"><a class="vp-link toc-link level2 toc-link level2" href="#go-native-api">Go Native API</a></li><li><ul class="toc-list"><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#dependencies">Dependencies</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#installation">Installation</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level3 toc-link level3" href="#how-to-use-the-sessionpool">How to Use the SessionPool</a></li><!----><!--]--></ul></li><!--]--></ul><div class="toc-marker" style="top:-1.7rem;"></div></div><!--[--><!----><!--]--></aside></div><!--[--><!----><!--]--><div class="theme-hope-content"><!--

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--><h2 id="go-native-api" tabindex="-1"><a class="header-anchor" href="#go-native-api" aria-hidden="true">#</a> Go Native API</h2><h3 id="dependencies" tabindex="-1"><a class="header-anchor" href="#dependencies" aria-hidden="true">#</a> Dependencies</h3><ul><li>golang &gt;= 1.13</li><li>make &gt;= 3.0</li><li>curl &gt;= 7.1.1</li><li>thrift 0.13.x</li><li>Linux、Macos or other unix-like systems</li><li>Windows+bash (WSL、cygwin、Git Bash)</li></ul><h3 id="installation" tabindex="-1"><a class="header-anchor" href="#installation" aria-hidden="true">#</a> Installation</h3><ul><li>go mod</li></ul><div class="language-bash line-numbers-mode" data-ext="sh"><pre class="language-bash"><code><span class="token builtin class-name">export</span> <span class="token assign-left variable">GO111MODULE</span><span class="token operator">=</span>on
<span class="token builtin class-name">export</span> <span class="token assign-left variable">GOPROXY</span><span class="token operator">=</span>https://goproxy.io

<span class="token function">mkdir</span> session_example <span class="token operator">&amp;&amp;</span> <span class="token builtin class-name">cd</span> session_example

<span class="token function">curl</span> <span class="token parameter variable">-o</span> session_example.go <span class="token parameter variable">-L</span> https://github.com/apache/iotdb-client-go/raw/main/example/session_example.go

go mod init session_example
go run session_example.go
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><ul><li>GOPATH</li></ul><div class="language-bash line-numbers-mode" data-ext="sh"><pre class="language-bash"><code><span class="token comment"># get thrift 0.13.0</span>
go get github.com/apache/thrift
<span class="token builtin class-name">cd</span> <span class="token variable">$GOPATH</span>/src/github.com/apache/thrift
<span class="token function">git</span> checkout <span class="token number">0.13</span>.0

<span class="token function">mkdir</span> <span class="token parameter variable">-p</span> <span class="token variable">$GOPATH</span>/src/iotdb-client-go-example/session_example
<span class="token builtin class-name">cd</span> <span class="token variable">$GOPATH</span>/src/iotdb-client-go-example/session_example
<span class="token function">curl</span> <span class="token parameter variable">-o</span> session_example.go <span class="token parameter variable">-L</span> https://github.com/apache/iotdb-client-go/raw/main/example/session_example.go
go run session_example.go
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="how-to-use-the-sessionpool" tabindex="-1"><a class="header-anchor" href="#how-to-use-the-sessionpool" aria-hidden="true">#</a> How to Use the SessionPool</h3><p>SessionPool is a wrapper of a Session Set. Using SessionPool, the user do not need to consider how to reuse a session connection.<br> If there is no available connections and the pool reaches its max size, the all methods will hang until there is a available connection.<br> The PutBack method must be called after use</p><h4 id="new-sessionpool" tabindex="-1"><a class="header-anchor" href="#new-sessionpool" aria-hidden="true">#</a> New sessionPool</h4><div class="language-golang line-numbers-mode" data-ext="golang"><pre class="language-golang"><code>config := &amp;client.PoolConfig{
    Host:     host,
    Port:     port,
    UserName: user,
    Password: password,
}
sessionPool = client.NewSessionPool(config, 3, 60000, 60000, false)
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h4 id="get-session-through-sessionpool-putback-after-use" tabindex="-1"><a class="header-anchor" href="#get-session-through-sessionpool-putback-after-use" aria-hidden="true">#</a> Get session through sessionPool, putback after use</h4><p>set storage group</p><div class="language-golang line-numbers-mode" data-ext="golang"><pre class="language-golang"><code>session, err := sessionPool.GetSession()
defer sessionPool.PutBack(session)
if err == nil {
    session.SetStorageGroup(sg)
}
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>query statement</p><div class="language-golang line-numbers-mode" data-ext="golang"><pre class="language-golang"><code>var timeout int64 = 1000
session, err := sessionPool.GetSession()
defer sessionPool.PutBack(session)
if err != nil {
    log.Print(err)
    return
}
sessionDataSet, err := session.ExecuteQueryStatement(sql, &amp;timeout)
if err == nil {
    defer sessionDataSet.Close()
    printDataSet1(sessionDataSet)
} else {
    log.Println(err)
}
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div></div><!--[--><!----><!--]--><footer class="page-meta"><div class="meta-item edit-link"><a href="https://github.com/apache/iotdb-docs/edit/main/src/UserGuide/V0.13.x/API/Programming-Go-Native-API.md" rel="noopener noreferrer" target="_blank" aria-label="Found Error? Edit this page on GitHub" class="nav-link label"><!--[--><svg xmlns="http://www.w3.org/2000/svg" class="icon edit-icon" viewBox="0 0 1024 1024" fill="currentColor" aria-label="edit icon"><path d="M430.818 653.65a60.46 60.46 0 0 1-50.96-93.281l71.69-114.012 7.773-10.365L816.038 80.138A60.46 60.46 0 0 1 859.225 62a60.46 60.46 0 0 1 43.186 18.138l43.186 43.186a60.46 60.46 0 0 1 0 86.373L588.879 565.55l-8.637 8.637-117.466 68.234a60.46 60.46 0 0 1-31.958 11.229z"></path><path d="M728.802 962H252.891A190.883 190.883 0 0 1 62.008 771.98V296.934a190.883 190.883 0 0 1 190.883-192.61h267.754a60.46 60.46 0 0 1 0 120.92H252.891a69.962 69.962 0 0 0-69.098 69.099V771.98a69.962 69.962 0 0 0 69.098 69.098h475.911A69.962 69.962 0 0 0 797.9 771.98V503.363a60.46 60.46 0 1 1 120.922 0V771.98A190.883 190.883 0 0 1 728.802 962z"></path></svg><!--]-->Found Error? Edit this page on GitHub<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span><!----></a></div><div class="meta-item git-info"><div class="update-time"><span class="label">Last update: </span><!----></div><div class="contributors"><span class="label">Contributors: </span><!--[--><!--[--><span class="contributor" title="email: 101696091+tanxilo@users.noreply.github.com">Tansgr</span><!--]--><!--]--></div></div></footer><nav class="vp-page-nav"><a aria-label="C++ Native API" class="vp-link nav-link prev nav-link prev" href="/UserGuide/V0.13.x/API/Programming-Cpp-Native-API.html"><div class="hint"><span class="arrow start"></span>Prev</div><div class="link"><!---->C++ Native API</div></a><a aria-label="JDBC (Not Recommend)" class="vp-link nav-link next nav-link next" href="/UserGuide/V0.13.x/API/Programming-JDBC.html"><div class="hint">Next<span class="arrow end"></span></div><div class="link">JDBC (Not Recommend)<!----></div></a></nav><!----><!--[--><!----><!--]--><!--]--></main><!--]--><footer style="padding-bottom:2rem;"><span id="doc-version" style="display:none;">rel/0.13</span><p style="text-align:center;color:#909399;font-size:12px;margin:0 30px;">Copyright © 2024 The Apache Software Foundation.<br> Apache and the Apache feather logo are trademarks of The Apache Software Foundation</p><p style="text-align:center;margin-top:10px;color:#909399;font-size:12px;margin:0 30px;"><strong>Have a question?</strong> Connect with us on QQ, WeChat, or Slack. <a href="https://github.com/apache/iotdb/issues/1995">Join the community</a> now.</p><p style="text-align:center;margin-top:10px;color:#909399;font-size:12px;margin:0 30px;"> We use <a href="https://analytics.google.com">Google Analytics</a> to collect anonymous, aggregated usage information. </p></footer></div><!--]--><!--]--><!----><!--]--></div>
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