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37.542-214.893 196.511-220.2 389.397-4.661 5.049-7.638 11.651-7.638 19.03v5.825h566.49v-5.825c0-7.379-2.849-13.981-7.509-18.9-5.049-193.016-97.867-351.985-220.2-389.527 123.24-37.67 216.446-198.453 220.588-392.892zM531.16 450.445v352.632c117.674 1.553 211.787 40.778 211.787 88.676H304.097c0-48.286 95.149-87.382 213.728-88.676V450.445c-93.077-3.107-167.901-81.297-167.901-177.093 0-8.803 6.99-15.793 15.793-15.793 8.803 0 15.794 6.99 15.794 15.793 0 80.261 63.69 145.635 142.01 145.635s142.011-65.374 142.011-145.635c0-8.803 6.99-15.793 15.794-15.793s15.793 6.99 15.793 15.793c0 95.019-73.789 172.82-165.96 177.093z"></path></svg><span>About 3 min</span><meta property="timeRequired" content="PT3M"></span><!----><!----></div><hr></div><div class="toc-place-holder"><aside 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" 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Node.js native interface</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level2 toc-link level2" href="#using-the-node-js-native-interface">Using the Node.js native interface</a></li><!----><!--]--><!--[--><li class="toc-item"><a class="vp-link toc-link level2 toc-link level2" href="#rpc-interface">rpc interface</a></li><!----><!--]--></ul><div class="toc-marker" style="top:-1.7rem;"></div></div><!--[--><!----><!--]--></aside></div><!--[--><!----><!--]--><div class="theme-hope-content"><!--

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--><h1 id="node-js-native-api" tabindex="-1"><a class="header-anchor" href="#node-js-native-api" aria-hidden="true">#</a> Node.js Native API</h1><p>Apache IoTDB uses Thrift as a cross-language RPC-framework so access to IoTDB can be achieved through the interfaces provided by Thrift.<br> This document will introduce how to generate a native Node.js interface that can be used to access IoTDB.</p><h2 id="dependents" tabindex="-1"><a class="header-anchor" href="#dependents" aria-hidden="true">#</a> Dependents</h2><ul><li>JDK &gt;= 1.8</li><li>Node.js &gt;= 16.0.0</li><li>Linux、Macos or like unix</li><li>Windows+bash</li></ul><h2 id="generate-the-node-js-native-interface" tabindex="-1"><a class="header-anchor" href="#generate-the-node-js-native-interface" aria-hidden="true">#</a> Generate the Node.js native interface</h2><ol><li>Find the <code>pom.xml</code> file in the root directory of the IoTDB source code folder.</li><li>Open the <code>pom.xml</code> file and find the following content:<div class="language-xml line-numbers-mode" data-ext="xml"><pre class="language-xml"><code>                         <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>execution</span><span class="token punctuation">&gt;</span></span>
                             <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>id</span><span class="token punctuation">&gt;</span></span>generate-thrift-sources-python<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>id</span><span class="token punctuation">&gt;</span></span>
                             <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>phase</span><span class="token punctuation">&gt;</span></span>generate-sources<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>phase</span><span class="token punctuation">&gt;</span></span>
                             <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>goals</span><span class="token punctuation">&gt;</span></span>
                                 <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>goal</span><span class="token punctuation">&gt;</span></span>compile<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>goal</span><span class="token punctuation">&gt;</span></span>
                             <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>goals</span><span class="token punctuation">&gt;</span></span>
                             <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>configuration</span><span class="token punctuation">&gt;</span></span>
                                 <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>generator</span><span class="token punctuation">&gt;</span></span>py<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>generator</span><span class="token punctuation">&gt;</span></span>
                                 <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>outputDirectory</span><span class="token punctuation">&gt;</span></span>${project.build.directory}/generated-sources-python/<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>outputDirectory</span><span class="token punctuation">&gt;</span></span>
                             <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>configuration</span><span class="token punctuation">&gt;</span></span>
                         <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>execution</span><span class="token punctuation">&gt;</span></span>
</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></div></li><li>Duplicate this block and change the <code>id</code>, <code>generator</code> and <code>outputDirectory</code> to this:<div class="language-xml line-numbers-mode" data-ext="xml"><pre class="language-xml"><code>                         <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>execution</span><span class="token punctuation">&gt;</span></span>
                             <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>id</span><span class="token punctuation">&gt;</span></span>generate-thrift-sources-nodejs<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>id</span><span class="token punctuation">&gt;</span></span>
                             <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>phase</span><span class="token punctuation">&gt;</span></span>generate-sources<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>phase</span><span class="token punctuation">&gt;</span></span>
                             <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>goals</span><span class="token punctuation">&gt;</span></span>
                                 <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>goal</span><span class="token punctuation">&gt;</span></span>compile<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>goal</span><span class="token punctuation">&gt;</span></span>
                             <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>goals</span><span class="token punctuation">&gt;</span></span>
                             <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>configuration</span><span class="token punctuation">&gt;</span></span>
                                 <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>generator</span><span class="token punctuation">&gt;</span></span>js:node<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>generator</span><span class="token punctuation">&gt;</span></span>
                                 <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>outputDirectory</span><span class="token punctuation">&gt;</span></span>${project.build.directory}/generated-sources-nodejs/<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>outputDirectory</span><span class="token punctuation">&gt;</span></span>
                             <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>configuration</span><span class="token punctuation">&gt;</span></span>
                         <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>execution</span><span class="token punctuation">&gt;</span></span>
</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></div></li><li>In the root directory of the IoTDB source code folder，run <code>mvn clean generate-sources</code>.</li></ol><p>This command will automatically delete the files in <code>iotdb/iotdb-protocol/thrift/target</code> and <code>iotdb/iotdb-protocol/thrift-commons/target</code>, and repopulate the folder with the newly generated files.<br> The newly generated JavaScript sources will be located in <code>iotdb/iotdb-protocol/thrift/target/generated-sources-nodejs</code> in the various modules of the <code>iotdb-protocol</code> module.</p><h2 id="using-the-node-js-native-interface" tabindex="-1"><a class="header-anchor" href="#using-the-node-js-native-interface" aria-hidden="true">#</a> Using the Node.js native interface</h2><p>Simply copy the files in <code>iotdb/iotdb-protocol/thrift/target/generated-sources-nodejs/</code> and <code>iotdb/iotdb-protocol/thrift-commons/target/generated-sources-nodejs/</code> into your project.</p><h2 id="rpc-interface" tabindex="-1"><a class="header-anchor" href="#rpc-interface" aria-hidden="true">#</a> rpc interface</h2><div class="language-text line-numbers-mode" data-ext="text"><pre class="language-text"><code>// open a session
TSOpenSessionResp openSession(1:TSOpenSessionReq req);

// close a session
TSStatus closeSession(1:TSCloseSessionReq req);

// run an SQL statement in batch
TSExecuteStatementResp executeStatement(1:TSExecuteStatementReq req);

// execute SQL statement in batch
TSStatus executeBatchStatement(1:TSExecuteBatchStatementReq req);

// execute query SQL statement
TSExecuteStatementResp executeQueryStatement(1:TSExecuteStatementReq req);

// execute insert, delete and update SQL statement 
TSExecuteStatementResp executeUpdateStatement(1:TSExecuteStatementReq req);

// fetch next query result
TSFetchResultsResp fetchResults(1:TSFetchResultsReq req)

// fetch meta data
TSFetchMetadataResp fetchMetadata(1:TSFetchMetadataReq req)

// cancel a query 
TSStatus cancelOperation(1:TSCancelOperationReq req);

// close a query dataset
TSStatus closeOperation(1:TSCloseOperationReq req);

// get time zone
TSGetTimeZoneResp getTimeZone(1:i64 sessionId);

// set time zone
TSStatus setTimeZone(1:TSSetTimeZoneReq req);

// get server&#39;s properties
ServerProperties getProperties();

// CREATE DATABASE
TSStatus setStorageGroup(1:i64 sessionId, 2:string storageGroup);

// create timeseries
TSStatus createTimeseries(1:TSCreateTimeseriesReq req);

// create multi timeseries
TSStatus createMultiTimeseries(1:TSCreateMultiTimeseriesReq req);

// delete timeseries
TSStatus deleteTimeseries(1:i64 sessionId, 2:list&lt;string&gt; path)

// delete sttorage groups
TSStatus deleteStorageGroups(1:i64 sessionId, 2:list&lt;string&gt; storageGroup);

// insert record
TSStatus insertRecord(1:TSInsertRecordReq req);

// insert record in string format
TSStatus insertStringRecord(1:TSInsertStringRecordReq req);

// insert tablet
TSStatus insertTablet(1:TSInsertTabletReq req);

// insert tablets in batch
TSStatus insertTablets(1:TSInsertTabletsReq req);

// insert records in batch
TSStatus insertRecords(1:TSInsertRecordsReq req);

// insert records of one device
TSStatus insertRecordsOfOneDevice(1:TSInsertRecordsOfOneDeviceReq req);

// insert records in batch as string format
TSStatus insertStringRecords(1:TSInsertStringRecordsReq req);

// test the latency of innsert tablet，caution：no data will be inserted, only for test latency
TSStatus testInsertTablet(1:TSInsertTabletReq req);

// test the latency of innsert tablets，caution：no data will be inserted, only for test latency
TSStatus testInsertTablets(1:TSInsertTabletsReq req);

// test the latency of innsert record，caution：no data will be inserted, only for test latency
TSStatus testInsertRecord(1:TSInsertRecordReq req);

// test the latency of innsert record in string format，caution：no data will be inserted, only for test latency
TSStatus testInsertStringRecord(1:TSInsertStringRecordReq req);

// test the latency of innsert records，caution：no data will be inserted, only for test latency
TSStatus testInsertRecords(1:TSInsertRecordsReq req);

// test the latency of innsert records of one device，caution：no data will be inserted, only for test latency
TSStatus testInsertRecordsOfOneDevice(1:TSInsertRecordsOfOneDeviceReq req);

// test the latency of innsert records in string formate，caution：no data will be inserted, only for test latency
TSStatus testInsertStringRecords(1:TSInsertStringRecordsReq req);

// delete data
TSStatus deleteData(1:TSDeleteDataReq req);

// execute raw data query
TSExecuteStatementResp executeRawDataQuery(1:TSRawDataQueryReq req);

// request a statement id from server
i64 requestStatementId(1:i64 sessionId);
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