Merge branch '3.0' of https://github.com/taosdata/TDengine into fix/TS-2504

docs/en/14-reference/03-connector/08-node.mdx

@@ -32,7 +32,9 @@ Please refer to [version support list](/reference/connector#version-support)
 
 ## Supported features
 
-### Native connectors
+
+<Tabs defaultValue="native">
+<TabItem value="native" label="Native connector">
 
 1. Connection Management
 2. General Query
@@ -41,12 +43,16 @@ Please refer to [version support list](/reference/connector#version-support)
 5. Subscription
 6. Schemaless
 
-### REST Connector
+</TabItem>
+<TabItem value="rest" label="REST connector">
 
 1. Connection Management
 2. General Query
 3. Continuous Query
 
+</TabItem>
+</Tabs>
+
 ## Installation Steps
 
 ### Pre-installation preparation
@@ -115,6 +121,9 @@ npm install @tdengine/rest
 
 ### Verify
 
+<Tabs defaultValue="native">
+<TabItem value="native" label="Native connector">
+
 After installing the TDengine client, use the `nodejsChecker.js` program to verify that the current environment supports Node.js access to TDengine.
 
 Verification in details:
@@ -131,6 +140,28 @@ node nodejsChecker.js host=localhost
 
 - After executing the above steps, the command-line will output the result of `nodejsChecker.js` connecting to the TDengine instance and performing a simple insert and query.
 
+</TabItem>
+<TabItem value="rest" label="REST connector">
+
+After installing the TDengine client, use the `restChecker.js` program to verify that the current environment supports Node.js access to TDengine.
+
+Verification in details:
+
+- Create an installation test folder such as `~/tdengine-test`. Download the [restChecker.js source code](https://github.com/taosdata/TDengine/tree/3.0/docs/examples/node/restexample/restChecker.js) to your local.
+
+- Execute the following command from the command-line.
+
+```bash
+npm init -y
+npm install @tdengine/rest
+node restChecker.js
+```
+
+- After executing the above steps, the command-line will output the result of `restChecker.js` connecting to the TDengine instance and performing a simple insert and query.
+
+</TabItem>
+</Tabs>
+
 ## Establishing a connection
 
 Please choose to use one of the connectors.
@@ -182,24 +213,61 @@ let cursor = conn.cursor();
 
 #### SQL Write
 
+<Tabs defaultValue="native">
+<TabItem value="native" label="native connection">
+
 <NodeInsert />
 
+</TabItem>
+<TabItem value="rest" label="REST connection">
+
+```js
+{{#include docs/examples/node/restexample/insert_example.js}}
+```
+
+</TabItem>
+</Tabs>
+
 #### InfluxDB line protocol write
 
+<Tabs defaultValue="native">
+<TabItem value="native" label="native connection">
+
 <NodeInfluxLine />
 
+</TabItem>
+</Tabs>
+
 #### OpenTSDB Telnet line protocol write
 
+<Tabs defaultValue="native">
+<TabItem value="native" label="native connection">
+
 <NodeOpenTSDBTelnet />
 
+</TabItem>
+</Tabs>
+
 #### OpenTSDB JSON line protocol write
 
+<Tabs defaultValue="native">
+<TabItem value="native" label="native connection">
+
 <NodeOpenTSDBJson />
 
+</TabItem>
+</Tabs>
+
 ### Querying data
 
+<Tabs defaultValue="native">
+<TabItem value="native" label="native connection">
+
 <NodeQuery />
 
+</TabItem>
+</Tabs>
+
 
 ## More sample programs
 

docs/examples/node/restexample/insert_example.js

+const { options, connect } = require("@tdengine/rest");
+
+async function sqlInsert() {
+    options.path = "/rest/sql";
+    options.host = "localhost";
+    options.port = 6041;
+    let conn = connect(options);
+    let cursor = conn.cursor();
+    try {
+        let res = await cursor.query('CREATE DATABASE power');
+        res = await cursor.query('CREATE STABLE power.meters (ts timestamp, current float, voltage int, phase float) TAGS (location binary(64), groupId int)');
+        res = await cursor.query('INSERT INTO power.d1001 USING power.meters TAGS ("California.SanFrancisco", 2) VALUES (NOW, 10.2, 219, 0.32)');
+        console.log("res.getResult()", res.getResult());
+    } catch (err) {
+        console.log(err);
+    }
+}
+sqlInsert();
+

docs/examples/node/restexample/restChecker.js

+const { options, connect } = require("@tdengine/rest");
+options.path = '/rest/sql/'
+options.host = 'localhost';
+options.port = 6041;
+options.user = "root";
+options.passwd = "taosdata";
+
+//optional 
+// options.url = "http://127.0.0.1:6041";
+
+const db = 'rest_ts_db';
+const table = 'rest'
+const createDB = `create database if not exists ${db} keep 3650`;
+const dropDB = `drop database if exists ${db}`;
+const createTB = `create table if not exists ${db}.${table}(ts timestamp,i8 tinyint,i16 smallint,i32 int,i64 bigint,bnr binary(40),nchr nchar(40))`;
+const addColumn = `alter table ${db}.${table} add column new_column nchar(40) `;
+const dropColumn = `alter table ${db}.${table} drop column new_column`;
+const insertSql = `insert into ${db}.${table} values('2022-03-30 18:30:51.567',1,2,3,4,'binary1','nchar1')` +
+    `('2022-03-30 18:30:51.568',5,6,7,8,'binary2','nchar2')` +
+    `('2022-03-30 18:30:51.569',9,0,1,2,'binary3','nchar3')`;
+const querySql = `select * from ${db}.${table}`;
+const errorSql = 'show database';
+
+let conn = connect(options);
+let cursor = conn.cursor();
+
+async function execute(sql, pure = true) {
+    let result = await cursor.query(sql, pure);
+    // print query result as taos shell
+    // Get Result object, return Result object.
+    console.log("result.getResult()",result.getResult());
+    // Get Meta data, return Meta[]|undefined(when execute failed this is undefined).
+    console.log("result.getMeta()",result.getMeta());
+    // Get data,return Array<Array<any>>|undefined(when execute failed this is undefined).
+    console.log("result.getData()",result.getData());
+    // Get affect rows,return number|undefined(when execute failed this is undefined).
+    console.log("result.getAffectRows()",result.getAffectRows());
+    // Get command,return SQL send to server(need to `query(sql,false)`,set 'pure=false',default true).
+    console.log("result.getCommand()",result.getCommand());
+    // Get error code ,return number|undefined(when execute failed this is undefined).
+    console.log("result.getErrCode()",result.getErrCode());
+    // Get error string,return string|undefined(when execute failed this is undefined).
+    console.log("result.getErrStr()",result.getErrStr());
+}
+
+(async () => {
+    // start execute time
+    let start = new Date().getTime(); 
+    await execute(createDB);
+    console.log("-----------------------------------")
+
+    await execute(createTB);
+    console.log("-----------------------------------")
+
+    await execute(addColumn);
+    console.log("----------------------------------")
+
+    await execute(dropColumn);
+    console.log("-----------------------------------")
+
+    await execute(insertSql);
+    console.log("-----------------------------------")
+
+    await execute(querySql);
+    console.log("-----------------------------------")
+
+    await execute(errorSql);
+    console.log("-----------------------------------")
+
+    await execute(dropDB);
+    // finish time
+    let end = new Date().getTime(); 
+    console.log("total spend time:%d ms",end - start);
+})()
+
+
+
+

docs/zh/08-connector/35-node.mdx

@@ -13,6 +13,8 @@ import NodeInfluxLine from "../07-develop/03-insert-data/_js_line.mdx";
 import NodeOpenTSDBTelnet from "../07-develop/03-insert-data/_js_opts_telnet.mdx";
 import NodeOpenTSDBJson from "../07-develop/03-insert-data/_js_opts_json.mdx";
 import NodeQuery from "../07-develop/04-query-data/_js.mdx";
+import RESTQuery from "../07-develop/04-query-data/_js.mdx";
+import RESTSQLInsert from "../07-develop/03-insert-data/_js_sql.mdx";
 
 `@tdengine/client` 和 `@tdengine/rest` 是 TDengine 的官方 Node.js 语言连接器。 Node.js 开发人员可以通过它开发可以存取 TDengine 集群数据的应用软件。注意：从 TDengine 3.0 开始 Node.js 原生连接器的包名由 `td2.0-connector` 改名为 `@tdengine/client` 而 rest 连接器的包名由 `td2.0-rest-connector` 改为 `@tdengine/rest`。并且不与 TDengine 2.x 兼容。
 
@@ -31,7 +33,8 @@ REST 连接器支持所有能运行 Node.js 的平台。
 
 ## 支持的功能特性
 
-### 原生连接器
+<Tabs defaultValue="native">
+<TabItem value="native" label="原生连接器">
 
 1. 连接管理
 2. 普通查询
@@ -40,12 +43,17 @@ REST 连接器支持所有能运行 Node.js 的平台。
 5. 订阅功能
 6. Schemaless
 
-### REST 连接器
+</TabItem>
+<TabItem value="rest" label="REST 连接器">
 
 1. 连接管理
 2. 普通查询
 3. 连续查询
 
+</TabItem>
+</Tabs>
+
+
 ## 安装步骤
 
 ### 安装前准备
@@ -114,6 +122,9 @@ npm install @tdengine/rest
 
 ### 安装验证
 
+<Tabs defaultValue="native">
+<TabItem value="native" label="原生连接器">
+
 在安装好 TDengine 客户端后，使用 nodejsChecker.js 程序能够验证当前环境是否支持 Node.js 方式访问 TDengine。
 
 验证方法：
@@ -130,11 +141,35 @@ node nodejsChecker.js host=localhost
 
 - 执行以上步骤后，在命令行会输出 nodejsChecker.js 连接 TDengine 实例，并执行简单插入和查询的结果。
 
+</TabItem>
+<TabItem value="rest" label="REST 连接器">
+
+在安装好 TDengine 客户端后，使用 nodejsChecker.js 程序能够验证当前环境是否支持 Node.js 方式访问 TDengine。
+
+验证方法：
+
+- 新建安装验证目录，例如：`~/tdengine-test`，下载 GitHub 上 [restChecker.js 源代码](https://github.com/taosdata/TDengine/tree/3.0/docs/examples/node/restexample/restChecker.js)到本地。
+
+- 在命令行中执行以下命令。
+
+```bash
+npm init -y
+npm install @tdengine/rest
+node restChecker.js
+```
+
+- 执行以上步骤后，在命令行会输出 restChecker.js 连接 TDengine 实例，并执行简单插入和查询的结果。
+
+</TabItem>
+</Tabs>
+
+
+
 ## 建立连接
 
 请选择使用一种连接器。
 
-<Tabs defaultValue="rest">
+<Tabs defaultValue="native">
 <TabItem value="native" label="原生连接">
 
 安装并引用 `@tdengine/client` 包。
@@ -181,24 +216,63 @@ let cursor = conn.cursor();
 
 #### SQL 写入
 
+<Tabs defaultValue="native">
+<TabItem value="native" label="原生连接">
+
 <NodeInsert />
 
+</TabItem>
+<TabItem value="rest" label="REST 连接">
+
+```js
+{{#include docs/examples/node/restexample/insert_example.js}}
+```
+
+</TabItem>
+</Tabs>
+
+
+
 #### InfluxDB 行协议写入
 
+<Tabs defaultValue="native">
+<TabItem value="native" label="原生连接">
+
 <NodeInfluxLine />
 
+</TabItem>
+</Tabs>
+
 #### OpenTSDB Telnet 行协议写入
 
+<Tabs defaultValue="native">
+<TabItem value="native" label="原生连接">
+
 <NodeOpenTSDBTelnet />
 
+</TabItem>
+</Tabs>
+
 #### OpenTSDB JSON 行协议写入
 
+<Tabs defaultValue="native">
+<TabItem value="native" label="原生连接">
+
 <NodeOpenTSDBJson />
 
+</TabItem>
+</Tabs>
+
 ### 查询数据
 
+<Tabs defaultValue="native">
+<TabItem value="native" label="原生连接">
+
 <NodeQuery />
 
+</TabItem>
+</Tabs>
+
 
 ## 更多示例程序