Can I use puppeteer in the new railway functions?
kstulgys
HOBBYOP

2 months ago

It seems after I am calling the endpoint that uses puppeteer I get this error:

stderr:
326 |         return new Promise((resolve, reject) => {
                                 ^
327 |             const onClose = (errorOrCode) => {
error: Failed to launch the browser process:  Code: 127
324 |     }
325 |     waitForLineOutput(regex, timeout = 0) {
328 |                 cleanup();
329 |                 reject(new Error([
/tmp/chromium: error while loading shared libraries: libnspr4.so: cannot open shared object file: No such file or directory
TROUBLESHOOTING: https://pptr.dev/troubleshooting
      at onClose (/app/node_modules/@puppeteer/browsers/lib/esm/launch.js:329:28)
      at emit (node:events:98:22)
      at #handleOnExit (node:child_process:520:14)

Here is my deps:

import puppeteer, { type PDFOptions, type Viewport } from "puppeteer-core";
import chromium from "@sparticuz/chromium";

Then:

  const browser = await puppeteer.launch({
    args: [
      ...chromium.args,
      "--no-sandbox",
      "--disable-setuid-sandbox",
      "--disable-gpu",
      "--disable-dev-shm-usage",
    ],
    defaultViewport: chromium.defaultViewport,
    executablePath: await chromium.executablePath(),
    headless: chromium.headless,
  });

https://docs.railway.com/reference/functions

$10 Bounty

1 Replies

passos
MODERATOR

2 months ago

Hey, I'm afraid Railway does not have a way to customize the build/start script to install those extra missing packages (libnspr4). If you want, you can install it via code with the following code:

import { $ } from "bun";

await $"apt-get update -y && apt-get install libnspr4 libnss3 expat -y"

But it comes at the cost of installing it every time the code starts up. In this case, I would recommend using a normal service with a GitHub repo. Railway will automatically detect the Bun environment, and if the error happens again, you can instruct Railway to fix it with the following environment variable:

RAILPACK_DEPLOY_APT_PACKAGES=libnspr4 libnss3 expat
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