Nicolapps Posts - Convex Community

Nicolapps

•Created by Nicolapps on 9/7/2023 in #support-community

“Class extends value undefined is not a constructor or null” (Node actions + Puppeteer)

Hi everyone! I’m trying to use Puppeteer in a Node action. I have some simple code that works locally but fails when deployed on Convex:

'use node';

import puppeteer from 'puppeteer';

(async () => {
  const browser = await puppeteer.launch({
    headless: 'new',
  });

  await browser.close();
})();

'use node';

import puppeteer from 'puppeteer';

(async () => {
  const browser = await puppeteer.launch({
    headless: 'new',
  });

  await browser.close();
})();

400 Bad Request: UnableToPush: Hit an error while pushing:
Loading the pushed modules encountered the following
    error:
Failed to analyze _deps/node/6Q45XLTZ.js: Class extends value undefined is not a constructor or null

400 Bad Request: UnableToPush: Hit an error while pushing:
Loading the pushed modules encountered the following
    error:
Failed to analyze _deps/node/6Q45XLTZ.js: Class extends value undefined is not a constructor or null

5 replies

CCConvex Community

•Created by Nicolapps on 8/29/2023 in #support-community

Access fetch’s Response.redirected in Convex runtime actions

This currently throws:

import { internalAction } from "./_generated/server";

export default internalAction(async ({ runMutation }) => {
  const src = 'https://www.convex.dev/ai-town/';
  const res = await fetch(src);
  console.log(res.redirected);
});

import { internalAction } from "./_generated/server";

export default internalAction(async ({ runMutation }) => {
  const src = 'https://www.convex.dev/ai-town/';
  const res = await fetch(src);
  console.log(res.redirected);
});

failure
Not implemented: get redirected for Response. Consider calling an action defined in Node.js instead (https://docs.convex.dev/functions/actions).
    at <anonymous> (../convex/action_aitown.ts:6:1)

failure
Not implemented: get redirected for Response. Consider calling an action defined in Node.js instead (https://docs.convex.dev/functions/actions).
    at <anonymous> (../convex/action_aitown.ts:6:1)

Even though I can use "use node" to make it work, it would be neat to make this work in the Convex runtime.

1 replies