请求的模块“@azure/arm-authorization”应为 CommonJS 类型答案

【问题标题】：The requested module '@azure/arm-authorization' is expected to be of type CommonJS请求的模块“@azure/arm-authorization”应为 CommonJS 类型
【发布时间】：2020-11-16 09:00:02
【问题描述】：

我正在使用带有默认 Express.JS 安装的 Node 14.5.0。我需要使用 Imports 来利用 Azure SDK for Node，并更改了默认的 express 要求：

const express = require('express')

到：

import express from 'express';

Express 能够加载，但是当我添加示例 SDK 以进行授权 (https://github.com/Azure/azure-sdk-for-js/tree/master/sdk/authorization/arm-authorization) 时，它会引发以下错误：

import { AuthorizationManagementClient, AuthorizationManagementModels, AuthorizationManagementMappers } 来自“@azure/arm-authorization”； ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ SyntaxError: The requested module '@azure/arm-authorization' is expected to be of CommonJS, 它不支持命名导出。可以导入 CommonJS 模块通过导入默认导出。例如：从导入 pkg '@azure/arm-authorization'; const { AuthorizationManagementClient, AuthorizationManagementModels, AuthorizationManagementMappers } = pkg; 在 ModuleJob._instantiate (internal/modules/esm/module_job.js:98:21) 在异步 ModuleJob.run (internal/modules/esm/module_job.js:137:5) 在异步 Loader.import (internal/modules/esm/loader.js:162:24)

我已经在我的 package.json 中添加了“type”：“module”，并安装了 Azure SDK 页面中列出的模块。

我的App.JS页面如下：

import express from 'express';
import * as msRest from "@azure/ms-rest-js";
import * as msRestAzure from "@azure/ms-rest-azure-js";
import * as msRestNodeAuth from "@azure/ms-rest-nodeauth";
import { AuthorizationManagementClient, AuthorizationManagementModels, AuthorizationManagementMappers } from "@azure/arm-authorization";
const subscriptionId = process.env["myguideforsubhere"];
const app = express()
const port = 5000

app.get('/', (req, res) => res.send('Hello World!'))

app.listen(port, () => console.log(`Example app listening at http://localhost:${port}`))

msRestNodeAuth.interactiveLogin().then((creds) => {
    const client = new AuthorizationManagementClient(creds, subscriptionId);
    client.classicAdministrators.list().then((result) => {
      console.log("The result is:");
      console.log(result);
    });
  }).catch((err) => {
    console.error(err);
  });

我的Package.json如下：

{
  "name": "myproject",
  "version": "1.0.0",
  "description": "myproject",
  "main": "app.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "Me",
  "license": "ISC",
  "dependencies": {
    "@azure/arm-authorization": "^8.3.2",
    "@azure/ms-rest-nodeauth": "^3.0.5",
    "express": "^4.17.1"
  },
  "type": "module"
}

这看起来像 SDK 文档中的错误，它无法使用示例中的导入，但需要更改为 require，或者更有可能是我做错了什么？

【问题讨论】：

标签： node.js azure-java-sdk

【解决方案1】：

见How to include commonjs module in ES6 module node app?

import { method } from 'commonjs-package';  // Errors
import packageMain from 'commonjs-package'; // Works

在您的情况下，azure sdk 不是用"type": "module" 编写的，因此节点将其视为 commonjs 模块，而不是 es6 模块。因此，您必须分两步进行导入和解构：

import armAuth from "@azure/arm-authorization";
let { AuthorizationManagementClient, AuthorizationManagementModels } = armAuth;

另见：requested module does not provide an export named '*'

【讨论】：