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README
Apache-2.0

简介

欢迎使用腾讯云开发者工具套件(SDK),Node.js SDK 4.0 是云 API 3.0 平台的配套工具。 为方便 Node.js 开发者调试和接入腾讯云产品 API,这里向您介绍适用于 Node.js 的腾讯云开发工具包,并提供首次使用开发工具包的简单示例。让您快速获取腾讯云 Node.js SDK 并开始调用。

依赖环境

  1. Node.js 10.0.0 版本及以上。
  2. 注意:部分产品需在 腾讯云控制台 开通服务后才能使用。

获取安装

使用 SDK 需要 API 密钥,可前往 腾讯云控制台 - 访问密钥 页面申请,API 密钥包括 SecretID 和 SecretKey,密钥须严格保管,避免泄露。

通过 npm 安装

通过 npm 获取安装是使用 Node.js SDK 的推荐方法,关于 npm 详细可参考 NPM 官网

安装指定产品 SDK(推荐)

安装 CVM SDK:

npm install tencentcloud-sdk-nodejs-cvm --save

安装 VPC SDK:

npm install tencentcloud-sdk-nodejs-vpc --save

具体产品的缩写表请参考 products.md 中的包名字段。

安装指定产品 SDK 后,注意修改引入的包名:

- const tencentcloud = require("tencentcloud-sdk-nodejs")
+ const { cvm } = require("tencentcloud-sdk-nodejs-cvm")

- const CvmClient = tencentcloud.cvm.v20170312.Client
+ const CvmClient = cvm.v20170312.Client

安装全产品 SDK

npm install tencentcloud-sdk-nodejs --save

全产品 SDK 包含了所有云产品的调用代码,体积偏大,对体积敏感的场景,推荐安装指定产品 SDK。

通过源码包安装

  1. 前往 GitHub 仓库 或者 Gitee 仓库 下载源码压缩包。
  2. 解压源码包到您项目合适的位置,例如 sdk/tencentcloud-sdk-nodejs
  3. 执行 npm install ./sdk/tencentcloud-sdk-nodejs
  4. 使用 require("tencentcloud-sdk-nodejs") 的方式引入 SDK,具体可参考示例。

示例

以云服务器产品查询可用区列表接口为例。

const tencentcloud = require("tencentcloud-sdk-nodejs")

// 导入对应产品模块的client models。
const CvmClient = tencentcloud.cvm.v20170312.Client

// 实例化要请求产品(以cvm为例)的client对象
const client = new CvmClient({
  // 为了保护密钥安全,建议将密钥设置在环境变量中或者配置文件中,请参考本文凭证管理章节。
  // 硬编码密钥到代码中有可能随代码泄露而暴露,有安全隐患,并不推荐。
  credential: {
    secretId: process.env.TENCENTCLOUD_SECRET_ID,
    secretKey: process.env.TENCENTCLOUD_SECRET_KEY,
  },
  // 产品地域
  region: "ap-shanghai",
  // 可选配置实例
  profile: {
    signMethod: "TC3-HMAC-SHA256", // 签名方法
    httpProfile: {
      reqMethod: "POST", // 请求方法
      reqTimeout: 30, // 请求超时时间,默认60s
      headers: {
        // 自定义 header
      },
      // proxy: "http://127.0.0.1:8899" // http请求代理
    },
  },
})
// 通过client对象调用想要访问的接口(Action),需要传入请求对象(Params)以及响应回调函数
// 即:client.Action(Params).then(res => console.log(res), err => console.error(err))
// 如:查询云服务器可用区列表
client.DescribeZones().then(
  (data) => {
    console.log(data)
  },
  (err) => {
    console.error("error", err)
  }
)

在支持 TypeScript 项目中,采用如下方式调用

import * as tencentcloud from "tencentcloud-sdk-nodejs"

const CvmClient = tencentcloud.cvm.v20170312.Client

// ...

实例化 Client 的入参支持 clientConfig,数据结构和说明详见 ClientConfig

Common Client

从 4.0.714 版本开始,腾讯云 Node.js SDK 支持使用泛用性的 API 调用方式(Common Client)进行请求。您只需要安装 tencentcloud-sdk-nodejs-common 包,即可向任何产品发起调用。

注意,您必须明确知道您调用的接口所需参数,否则可能会调用失败。

详细使用请参阅示例:使用 Common Client 进行调用

更多示例

请参考 examples 目录。

相关配置

代理

如果是有代理的环境下,需要配置代理,请在创建 Client 时传入 profile.httpProfile.proxy 参数,或设置系统环境变量 http_proxy ,否则可能无法正常调用,抛出连接超时的异常。

凭证管理

除显式传入凭证外,从 v4.0.506 起支持 腾讯云实例角色

在您为实例绑定角色后,您可以在实例中访问相关元数据接口获取临时凭证。用法可参考 js 示例代码ts 示例代码

// ...
const CvmRoleCredential = require("tencentcloud-sdk-nodejs/tencentcloud/common/cvm_role_credential").default

new XxxClient({
  // ...
  credential: new CvmRoleCredential(),
  // ...
})

常见问题

  • webpack 打包出错/浏览器报错

    务必不要将此 SDK 直接用于 Web 前端(包括小程序等),暴露密钥在这些环境非常不安全。

    正确的做法是在自己的服务端引用此 SDK,并保存好密钥,做好请求鉴权,前端再调用服务端执行业务流程。

  • The "original" argument must be of type Function.

    通常是因为 Node.js 版本低于 v10 ,或处于非 Node.js 环境,请再次确认执行环境。

  • 请求不通

    设置环境变量 NODE_DEBUG=http 来开启请求日志输出来定位问题,例如:

    # MacOS
    NODE_DEBUG=http node app.js
    # windows cmd
    set NODE_DEBUG=http & node app.js
    # windows powershell
    $env:NODE_DEBUG='http' ; node app.js
    

    如需要配置代理,请查阅 代理,或设置环境变量 http_proxy,例如:

    # MacOS
    http_proxy=http://代理地址:代理端口 node app.js
    
  • 整数类型值超出 JavaScript 最大安全整数 使用新的数据类型 BigInt

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