Node.js服务端Web应用中require未定义错误求助

Hey there! That error usually pops up when your code is running in an environment that doesn’t recognize Node.js’s CommonJS module syntax. Let’s break down the most common fixes to get your DocumentDB client working:

1. Confirm you’re running code in Node.js, not a browser #

require() is a Node.js-specific function—browsers don’t support it natively. If you’re trying to run this script in a browser tab (or browser-based tools like CodePen/JSFiddle), that’s the root issue. You need to execute your file using the Node.js CLI instead:

node your-server-script.js

2. Check if your project uses ES Modules (ESM) instead of CommonJS #

If your package.json includes a "type": "module" line, Node.js treats all .js files as ES Modules, which don’t support require(). You have two easy fixes here:

• Switch to ES Module import syntax:

  import { DocumentClient } from "documentdb";
  

• Keep using require() by renaming your file to use a .cjs extension (e.g., server.cjs), or remove the "type": "module" line from your package.json if you don’t need ESM features.

3. Verify the documentdb package is installed correctly #

Double-check that you’ve installed the package in your project directory first—missing dependencies can sometimes lead to confusing secondary errors:

npm install documentdb

Once you address one of these points, your DocumentClient import should work smoothly!

内容的提问来源于stack exchange，提问作者AmData