Feature/xiaolei/td 1860 node restful (#7900)

* chore: esbuild support for nodejs connector

* TD-1860-feature-node-restful

* commit index,showdatabase

* fix some description

* fix test without assert, try to add CI

* test ci 2nd

* ci test 3rd

* ci test 4th

* remove src/index.js
Co-authored-by: NHuo Linhe <linhehuo@gmail.com>

Jenkinsfile

@@ -240,6 +240,16 @@ pipeline {
               node nanosecondTest.js
 
               '''
+
+              sh '''
+              cd ${WKC}/src/connector/node-rest/
+              npm install
+              npm run build 
+              npm run build:test
+              npm run test
+
+              '''
+
               sh '''
                 cd ${WKC}/tests/examples/C#/taosdemo
                 mcs -out:taosdemo *.cs > /dev/null 2>&1

src/connector/node-rest/.gitignore

+
+# Created by https://www.toptal.com/developers/gitignore/api/node
+# Edit at https://www.toptal.com/developers/gitignore?templates=node
+
+### Node ###
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+.pnpm-debug.log*
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+*.lcov
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# Snowpack dependency directory (https://snowpack.dev/)
+web_modules/
+
+# TypeScript cache
+*.tsbuildinfo
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Microbundle cache
+.rpt2_cache/
+.rts2_cache_cjs/
+.rts2_cache_es/
+.rts2_cache_umd/
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+.env.test
+.env.production
+
+# parcel-bundler cache (https://parceljs.org/)
+.cache
+.parcel-cache
+
+# Next.js build output
+.next
+out
+
+# Nuxt.js build / generate output
+.nuxt
+dist
+
+# Gatsby files
+.cache/
+# Comment in the public line in if your project uses Gatsby and not Next.js
+# https://nextjs.org/blog/next-9-1#public-directory-support
+# public
+
+# vuepress build output
+.vuepress/dist
+
+# Serverless directories
+.serverless/
+
+# FuseBox cache
+.fusebox/
+
+# DynamoDB Local files
+.dynamodb/
+
+# TernJS port file
+.tern-port
+
+# Stores VSCode versions used for testing VSCode extensions
+.vscode-test
+
+# yarn v2
+.yarn/cache
+.yarn/unplugged
+.yarn/build-state.yml
+.yarn/install-state.gz
+.pnp.*
+
+# End of https://www.toptal.com/developers/gitignore/api/node
+
+lib/
+yarn.lock

src/connector/node-rest/.nvmrc

+14

src/connector/node-rest/TDengineRest.js

+import {TDengineRestConnection} from './src/restConnect'
+
+export function TDRestConnection(connection = {}) {
+  return new TDengineRestConnection(connection)
+}

src/connector/node-rest/examples/show-database.js

+import {TDengineRestConnection} from "../src/restConnect";
+
+let conn = new TDengineRestConnection({host: '127.0.0.1', user: 'root', pass: 'taosdata', port: 6041})
+let cursor = conn.cursor();
+console.log(conn)
+let data = {};
+(async () => {
+  data = await cursor.query("show databases");
+  data.toString()
+})()
+
+
+

src/connector/node-rest/package-lock.json

+{
+  "name": "td-rest-connector",
+  "version": "1.0.0",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
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+      "version": "7.12.11",
+      "resolved": "https://registry.nlark.com/@babel/code-frame/download/@babel/code-frame-7.12.11.tgz",
+      "integrity": "sha1-9K1DWqJj25NbjxDyxVLSP7cWpj8=",
+      "dev": true,
+      "requires": {
+        "@babel/highlight": "^7.10.4"
+      }
+    },
+    "@babel/helper-validator-identifier": {
+      "version": "7.14.9",
+      "resolved": "https://registry.nlark.com/@babel/helper-validator-identifier/download/@babel/helper-validator-identifier-7.14.9.tgz",
+      "integrity": "sha1-ZlTRcbICT22O4VG/JQlpmRkTHUg=",
+      "dev": true
+    },
+    "@babel/highlight": {
+      "version": "7.14.5",
+      "resolved": "https://registry.nlark.com/@babel/highlight/download/@babel/highlight-7.14.5.tgz",
+      "integrity": "sha1-aGGlLwOWZAUAH2qlNKAaJNmejNk=",
+      "dev": true,
+      "requires": {
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+        "js-tokens": "^4.0.0"
+      },
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+          "version": "2.4.2",
+          "resolved": "https://registry.nlark.com/chalk/download/chalk-2.4.2.tgz?cache=0&sync_timestamp=1627647108647&other_urls=https%3A%2F%2Fregistry.nlark.com%2Fchalk%2Fdownload%2Fchalk-2.4.2.tgz",
+          "integrity": "sha1-zUJUFnelQzPPVBpJEIwUMrRMlCQ=",
+          "dev": true,
+          "requires": {
+            "ansi-styles": "^3.2.1",
+            "escape-string-regexp": "^1.0.5",
+            "supports-color": "^5.3.0"
+          }
+        },
+        "escape-string-regexp": {
+          "version": "1.0.5",
+          "resolved": "https://registry.npm.taobao.org/escape-string-regexp/download/escape-string-regexp-1.0.5.tgz?cache=0&sync_timestamp=1618677264890&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fescape-string-regexp%2Fdownload%2Fescape-string-regexp-1.0.5.tgz",
+          "integrity": "sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ=",
+          "dev": true
+        }
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+    "@eslint/eslintrc": {
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+      "resolved": "https://registry.nlark.com/@eslint/eslintrc/download/@eslint/eslintrc-0.4.3.tgz",
+      "integrity": "sha1-nkKYHvA1vrPdSa3ResuW6P9vOUw=",
+      "dev": true,
+      "requires": {
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+        "debug": "^4.1.1",
+        "espree": "^7.3.0",
+        "globals": "^13.9.0",
+        "ignore": "^4.0.6",
+        "import-fresh": "^3.2.1",
+        "js-yaml": "^3.13.1",
+        "minimatch": "^3.0.4",
+        "strip-json-comments": "^3.1.1"
+      }
+    },
+    "@humanwhocodes/config-array": {
+      "version": "0.5.0",
+      "resolved": "https://registry.nlark.com/@humanwhocodes/config-array/download/@humanwhocodes/config-array-0.5.0.tgz",
+      "integrity": "sha1-FAeWfUxu7Nc4j4Os8er00Mbljvk=",
+      "dev": true,
+      "requires": {
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+        "debug": "^4.1.1",
+        "minimatch": "^3.0.4"
+      }
+    },
+    "@humanwhocodes/object-schema": {
+      "version": "1.2.0",
+      "resolved": "https://registry.nlark.com/@humanwhocodes/object-schema/download/@humanwhocodes/object-schema-1.2.0.tgz",
+      "integrity": "sha1-h956+cIxgm/daKxyWPd8Qp4OX88=",
+      "dev": true
+    },
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+      "version": "7.4.1",
+      "resolved": "https://registry.nlark.com/acorn/download/acorn-7.4.1.tgz",
+      "integrity": "sha1-/q7SVZc9LndVW4PbwIhRpsY1IPo=",
+      "dev": true
+    },
+    "acorn-jsx": {
+      "version": "5.3.2",
+      "resolved": "https://registry.nlark.com/acorn-jsx/download/acorn-jsx-5.3.2.tgz",
+      "integrity": "sha1-ftW7VZCLOy8bxVxq8WU7rafweTc=",
+      "dev": true
+    },
+    "ajv": {
+      "version": "6.12.6",
+      "resolved": "https://registry.nlark.com/ajv/download/ajv-6.12.6.tgz",
+      "integrity": "sha1-uvWmLoArB9l3A0WG+MO69a3ybfQ=",
+      "dev": true,
+      "requires": {
+        "fast-deep-equal": "^3.1.1",
+        "fast-json-stable-stringify": "^2.0.0",
+        "json-schema-traverse": "^0.4.1",
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+      }
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+      "integrity": "sha1-QfuyAkPlCxK+DwS43tvwdSDOhB0=",
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+      }
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+      "resolved": "https://registry.nlark.com/argparse/download/argparse-1.0.10.tgz",
+      "integrity": "sha1-vNZ5HqWuCXJeF+WtmIE0zUCz2RE=",
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+      }
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+      "integrity": "sha1-lfwcYW1IcTUQaA8ury0Q3SLgLTI=",
+      "requires": {
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+      "integrity": "sha1-kvlWFlAQadB9EO2y/DfT4cZRI7c="
+    },
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+            "require-from-string": "^2.0.2",
+            "uri-js": "^4.2.2"
+          }
+        },
+        "json-schema-traverse": {
+          "version": "1.0.0",
+          "resolved": "https://registry.nlark.com/json-schema-traverse/download/json-schema-traverse-1.0.0.tgz",
+          "integrity": "sha1-rnvLNlard6c7pcSb9lTzjmtoYOI=",
+          "dev": true
+        }
+      }
+    },
+    "text-table": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npm.taobao.org/text-table/download/text-table-0.2.0.tgz",
+      "integrity": "sha1-f17oI66AUgfACvLfSoTsP8+lcLQ=",
+      "dev": true
+    },
+    "type-check": {
+      "version": "0.4.0",
+      "resolved": "https://registry.nlark.com/type-check/download/type-check-0.4.0.tgz",
+      "integrity": "sha1-B7ggO/pwVsBlcFDjzNLDdzC6uPE=",
+      "dev": true,
+      "requires": {
+        "prelude-ls": "^1.2.1"
+      }
+    },
+    "type-fest": {
+      "version": "0.20.2",
+      "resolved": "https://registry.nlark.com/type-fest/download/type-fest-0.20.2.tgz",
+      "integrity": "sha1-G/IH9LKPkVg2ZstfvTJ4hzAc1fQ=",
+      "dev": true
+    },
+    "unbox-primitive": {
+      "version": "1.0.1",
+      "resolved": "https://registry.nlark.com/unbox-primitive/download/unbox-primitive-1.0.1.tgz",
+      "integrity": "sha1-CF4hViXsMWJXTciFmr7nilmxRHE=",
+      "requires": {
+        "function-bind": "^1.1.1",
+        "has-bigints": "^1.0.1",
+        "has-symbols": "^1.0.2",
+        "which-boxed-primitive": "^1.0.2"
+      }
+    },
+    "uri-js": {
+      "version": "4.4.1",
+      "resolved": "https://registry.npm.taobao.org/uri-js/download/uri-js-4.4.1.tgz?cache=0&sync_timestamp=1610240086113&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Furi-js%2Fdownload%2Furi-js-4.4.1.tgz",
+      "integrity": "sha1-mxpSWVIlhZ5V9mnZKPiMbFfyp34=",
+      "dev": true,
+      "requires": {
+        "punycode": "^2.1.0"
+      }
+    },
+    "util": {
+      "version": "0.12.4",
+      "resolved": "https://registry.nlark.com/util/download/util-0.12.4.tgz?cache=0&sync_timestamp=1622213272480&other_urls=https%3A%2F%2Fregistry.nlark.com%2Futil%2Fdownload%2Futil-0.12.4.tgz",
+      "integrity": "sha1-ZhIaMUIN+PAcoMRkvhXfodGFAlM=",
+      "requires": {
+        "inherits": "^2.0.3",
+        "is-arguments": "^1.0.4",
+        "is-generator-function": "^1.0.7",
+        "is-typed-array": "^1.1.3",
+        "safe-buffer": "^5.1.2",
+        "which-typed-array": "^1.1.2"
+      }
+    },
+    "v8-compile-cache": {
+      "version": "2.3.0",
+      "resolved": "https://registry.npm.taobao.org/v8-compile-cache/download/v8-compile-cache-2.3.0.tgz",
+      "integrity": "sha1-LeGWGMZtwkfc+2+ZM4A12CRaLO4=",
+      "dev": true
+    },
+    "which": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npm.taobao.org/which/download/which-2.0.2.tgz",
+      "integrity": "sha1-fGqN0KY2oDJ+ELWckobu6T8/UbE=",
+      "dev": true,
+      "requires": {
+        "isexe": "^2.0.0"
+      }
+    },
+    "which-boxed-primitive": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npm.taobao.org/which-boxed-primitive/download/which-boxed-primitive-1.0.2.tgz",
+      "integrity": "sha1-E3V7yJsgmwSf5dhkMOIc9AqJqOY=",
+      "requires": {
+        "is-bigint": "^1.0.1",
+        "is-boolean-object": "^1.1.0",
+        "is-number-object": "^1.0.4",
+        "is-string": "^1.0.5",
+        "is-symbol": "^1.0.3"
+      }
+    },
+    "which-typed-array": {
+      "version": "1.1.7",
+      "resolved": "https://registry.nlark.com/which-typed-array/download/which-typed-array-1.1.7.tgz?cache=0&sync_timestamp=1630377722719&other_urls=https%3A%2F%2Fregistry.nlark.com%2Fwhich-typed-array%2Fdownload%2Fwhich-typed-array-1.1.7.tgz",
+      "integrity": "sha1-J2F5m5oi1LhmCzwbQKuqdzlpF5M=",
+      "requires": {
+        "available-typed-arrays": "^1.0.5",
+        "call-bind": "^1.0.2",
+        "es-abstract": "^1.18.5",
+        "foreach": "^2.0.5",
+        "has-tostringtag": "^1.0.0",
+        "is-typed-array": "^1.1.7"
+      }
+    },
+    "word-wrap": {
+      "version": "1.2.3",
+      "resolved": "https://registry.nlark.com/word-wrap/download/word-wrap-1.2.3.tgz",
+      "integrity": "sha1-YQY29rH3A4kb00dxzLF/uTtHB5w=",
+      "dev": true
+    },
+    "wrappy": {
+      "version": "1.0.2",
+      "resolved": "https://registry.nlark.com/wrappy/download/wrappy-1.0.2.tgz",
+      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
+      "dev": true
+    },
+    "yallist": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npm.taobao.org/yallist/download/yallist-4.0.0.tgz",
+      "integrity": "sha1-m7knkNnA7/7GO+c1GeEaNQGaOnI=",
+      "dev": true
+    }
+  }
+}

src/connector/node-rest/package.json

+{
+  "name": "td-rest-connector",
+  "version": "1.0.0",
+  "description": "A Node.js connector for TDengine restful",
+  "module": "src/TDengineRest.js",
+  "main": "lib/TDengineclearRest.js",
+  "license": "MIT",
+  "scripts": {
+    "prepare": "npm run build",
+    "build": "esbuild --bundle --platform=node --outfile=lib/TDengineRest.js  ./TDengineRest.js",
+    "build:dev": "esbuild --bundle --platform=node --outfile=dist/examples/show-database.js examples/show-database.js ",
+    "build:test": "esbuild test/testRestConn.js   --bundle --platform=node --outfile=dist/tests/testRestConn.js ",
+    "test": "node dist/tests/testRestConn.js"
+  },
+  "devDependencies": {
+    "esbuild": "^0.12.25",
+    "eslint": "^7.32.0",
+    "assert": "^2.0.0"
+  },
+  "dependencies": {
+    "node-fetch": "^2.x"
+  }
+}

src/connector/node-rest/readme.md

+# TDengine Nodejs Restful
+
+This is the Node.js library that lets you connect to [TDengine](https://www.github.com/taosdata/tdengine) though
+restful. This restful can help you access the TDengine from different platform.
+
+## Install
+To get started, just type in the following to install the connector through [npm](https://www.npmjs.com/)
+
+```cmd
+npm install td-rest-connector
+```
+
+## Usage
+
+### Connection
+
+```javascript
+import taoRest  from 'TDengineRest'
+var connRest = taoRest({host:'127.0.0.1',user:'root',pass:'taosdata',port:6041})
+```
+
+query
+```javascript
+(async()=>{
+  data = await connRest.query("show databases");
+  data.toString();
+  }
+)()
+```
+
+## Example
+An example of using the NodeJS Restful connector to create a table with weather data and create and execute queries can be found [here](https://github.com/taosdata/TDengine/tree/master/tests/examples/node-rest/show-database.js) 
+
+## Contributing to TDengine
+
+Please follow the [contribution guidelines](https://github.com/taosdata/TDengine/blob/master/CONTRIBUTING.md) to contribute to the project.
+
+## License
+
+[GNU AGPL v3.0](http://www.gnu.org/licenses/agpl-3.0.html)

src/connector/node-rest/src/restConnect.js

+import {TDengineRestCursor} from '../src/restCursor'
+
+/**
+ *this class collect basic information that can be used to build
+ * a restful connection.
+ */
+export class TDengineRestConnection {
+  /**
+   * constructor,give variables some default values
+   * @param options
+   * @returns {TDengineRestConnection}
+   */
+  constructor(options) {
+    this.host = 'localhost'
+    this.port = '6041'
+    this.user = 'root'
+    this.pass = 'taosdata'
+    this.path = '/rest/sqlt/'
+    this._initConnection(options)
+    return this
+  }
+
+  /**
+   * used to init the connection info using  the input options
+   * @param options
+   * @private
+   */
+  _initConnection(options) {
+    if (options['host']) {
+      this.host = options['host']
+    }
+    if (options['port']) {
+      this.port = options['port']
+    }
+    if (options['user']) {
+      this.user = options['user']
+    }
+    if (options['pass']) {
+      this.pass = options['pass']
+    }
+    if (options['path']) {
+      this.path = options['path']
+    }
+  }
+
+  /**
+   * cursor will return an object of TDengineRestCursor, which can send restful(http) request and get
+   * the response from server.
+   * @returns {TDengineRestCursor}
+   */
+  cursor() {
+    return new TDengineRestCursor(this)
+  }
+}
+
+
+
+
+

src/connector/node-rest/src/restConstant.js

+/**
+ * indicate the every type's type code
+ * @type {{"0": string, "1": string, "2": string, "3": string, "4": string, "5": string, "6": string, "7": string, "8": string, "9": string, "10": string}}
+ */
+export const typeCodesToName = {
+  0: 'Null',
+  1: 'Boolean',
+  2: 'Tiny Int',
+  3: 'Small Int',
+  4: 'Int',
+  5: 'Big Int',
+  6: 'Float',
+  7: 'Double',
+  8: 'Binary',
+  9: 'Timestamp',
+  10: 'Nchar',
+}
+
+/**
+ * get the type of input typecode, in fact the response of restful will send every column's typecode
+ * @param typecode
+ * @returns {*}
+ */
+export function getTaoType(typecode) {
+  return typeCodesToName[typecode];
+}
\ No newline at end of file

src/connector/node-rest/src/restCursor.js

+import fetch from 'node-fetch'
+import {TDengineRestResultSet} from '../src/restResult'
+
+/**
+ * this class is core of restful js connector
+ * this class resends http request to the TDengine server
+ * and receive the response.
+ */
+export class TDengineRestCursor {
+  /**
+   * constructor,used to get the connection info
+   * @param connection
+   */
+  constructor(connection) {
+    this._connection = null;
+    this.data = [];
+    this.http = false
+    if (connection != null) {
+      this._connection = connection
+    } else {
+      throw new Error("A TDengineRestConnection object is required to be passed to the TDengineRestCursor")
+    }
+  }
+
+  /**
+   * used to build an url,like http://localhost:6041/rest/sql
+   * @returns {string}
+   * @private
+   */
+  _apiUpl() {
+    return (this.http ? "https" : "http") + "://" + this._connection.host + ":" + this._connection.port + this._connection.path
+  }
+
+  /**
+   * used to make an authorization token
+   * @returns {string}
+   * @private
+   */
+  _token() {
+    return 'Basic ' + Buffer.from(this._connection.user + ":" + this._connection.pass).toString('base64')
+  }
+
+  /**
+   * Used fetch to send http request， and return the response as an object of TDengineRestResultSet
+   * @param sql
+   * @returns {Promise<TDengineRestResultSet>}
+   */
+  async query(sql) {
+    try {
+      let response = await fetch(this._apiUpl(), {
+        method: 'POST',
+        body: sql,
+        headers: {'Authorization': this._token()}
+      })
+      // if (response.status == 'succ') {
+      return await new TDengineRestResultSet(await response.json())
+      // } else {
+      //   throw new Error(response.desc)
+      // }
+    } catch (e) {
+      console.log("Request Failed " + e)
+    }
+
+  }
+}
+

src/connector/node-rest/src/restResult.js

+import {getTaoType} from '../src/restConstant'
+
+
+export class TDengineRestResultSet {
+  constructor(result) {
+    this.status = ''    //succ
+    this.column_name = {} //head
+    this.column_type = {} //column_meta
+    this.data = {}
+    this.affectRows = null //rows
+    this.code = null
+    this.desc = null
+    this._init(result)
+  }
+
+  //initial the resultSet with a jason parameter
+  /**
+   *
+   * @param jason
+   */
+  _init(result) {
+    if (result.status) {
+      this.status = result.status
+    }
+    if (result.head) {
+      this.column_name = result.head
+    }
+    if (result.column_meta) {
+      this.column_type = result.column_meta
+    }
+    if (result.data) {
+      this.data = result.data
+    }
+    if (result.rows) {
+      this.affectRows = result.rows
+    }
+    if (result.code) {
+      this.code = result.code
+    }
+    if (result.desc) {
+      this.desc = result.desc
+    }
+  }
+
+  getStatus() {
+    return this.status
+  }
+
+  getColumn_name() {
+    return this.column_name
+  }
+
+  getColumn_type() {
+    let column_data = []
+    this.column_type.forEach(function (column) {
+      column[1] = getTaoType(column[1])
+      column_data.push(column)
+    })
+    return column_data
+  }
+
+  getData() {
+    return this.data
+  }
+
+  getAffectRow() {
+    return this.affectRows
+  }
+
+  getCode() {
+    return this.code
+  }
+
+  getDesc() {
+    return this.desc
+  }
+
+
+  toString() {
+    if(this.status === 'succ'){
+      let fields = this.column_type
+      let rows = this.data
+      this._prettyStr(fields, rows)
+    }else{
+      console.log(this.status+":"+this.desc)
+    }
+  }
+
+  _prettyStr(fields, data) {
+    let colName = []
+    let colType = []
+    let colSize = []
+    let colStr = ""
+
+
+    for (let i = 0; i < fields.length; i++) {
+      colName.push(fields[i][0])
+      colType.push(fields[i][1])
+
+      if ((fields[i][1]) == 8 || (fields[i][1]) == 10) {
+        colSize.push(Math.max(fields[i][0].length, fields[i][2]));  //max(column_name.length,column_type_precision)
+      } else {
+        colSize.push(Math.max(fields[i][0].length, suggestedMinWidths[fields[i][1]]));// max(column_name.length,suggest_column_with_suggestion)
+      }
+      // console.log(colSize)
+    }
+    colName.forEach((name, i) => {
+      colStr += this._fillEmpty(Math.floor(colSize[i] / 2 - name.length / 2)) + name.toString() + this._fillEmpty(Math.ceil(colSize[i] / 2 - name.length / 2)) + " | "
+    })
+
+    let strSperator = ""
+    let sizeSum = colSize.reduce((a, b) => a += b, (0)) + colSize.length * 3
+    strSperator = this._printN("=", sizeSum)
+
+    console.log("\n" + colStr)
+    console.log(strSperator)
+
+    data.forEach((row) => {
+      let rowStr = ""
+      row.forEach((cell, index) => {
+        rowStr += cell == null ? 'null' : cell.toString();
+        rowStr += this._fillEmpty(colSize[index] - cell.toString().length) + " | "
+      })
+      console.log(rowStr)
+    })
+
+    return colStr
+  }
+
+  _fillEmpty(n) {
+    let str = "";
+    for (let i = 0; i < n; i++) {
+      str += " ";
+    }
+    return str;
+  }
+
+  _printN(s, n) {
+    let f = "";
+    for (let i = 0; i < n; i++) {
+      f += s;
+    }
+    return f;
+  }
+}
+
+const suggestedMinWidths = {
+  0: 4,
+  1: 4,
+  2: 4,
+  3: 6,
+  4: 11,
+  5: 12,
+  6: 24,
+  7: 24,
+  8: 10,
+  9: 25,
+  10: 10,
+}

src/connector/node-rest/test/testRestConn.js

+import {TDRestConnection} from "../TDengineRest";
+import assert from "assert"
+
+let conn = new TDRestConnection({host: '127.0.0.1', user: 'root', pass: 'taosdata', port: 6041});
+let cursor = conn.cursor();
+
+const createDB = "create database if not exists node_rest";
+const dropDB = "drop database if exists  node_rest";
+const createTBL = "CREATE STABLE if not exists node_rest.meters (ts timestamp, current float, voltage int, phase float) TAGS (location binary(64), groupId int)";
+const dropTBL = "drop table if exists node_rest.meters ";
+const insert = "INSERT INTO node_rest.d1001 USING node_rest.meters TAGS (\"Beijng.Chaoyang\", 2) VALUES (now, 10.2, 219, 0.32) ";
+const select = "select * from node_rest.d1001 ";
+const selectStbl = "select * from node_rest.meters";
+
+async function execute(sql) {
+  console.log("SQL:" + sql);
+  let result = await cursor.query(sql);
+  try {
+    assert.strictEqual(result.getStatus(), 'succ', new Error("response error"))
+    result.toString()
+  } catch (e) {
+    console.log(e)
+  }
+
+}
+
+(async () => {
+  await execute(createDB);
+  await execute(createTBL);
+  await execute(insert);
+  await execute(select);
+  await execute(selectStbl);
+  await execute(dropDB);
+})()
+
+// (async () => {
+//   result = await cursor.query("drop database if exists  node_rest").catch(e=>console.log(e))
+//   result.toString()
+// })()