ReferenceError: fetch is not defined

Workarounds

1. 95% success Install node-fetch: npm install node-fetch

   import fetch from 'node-fetch';

   Sources: https://www.npmjs.com/package/node-fetch

2. 90% success Upgrade to Node 21+ where fetch is stable, or use --experimental-fetch flag in Node 18

   nvm install 22 && nvm use 22
   # Or for Node 18: node --experimental-fetch app.js

   Sources: https://nodejs.org/api/globals.html#fetch

3. 88% success Use undici (Node's built-in HTTP client): const { fetch } = require('undici')

   const { fetch } = require('undici')

   Sources: https://nodejs.org/api/globals.html#fetch