bun build --compile with puppeteer. but bun run works well

[txthinking]

What version of Bun is running?

0.8.1

What platform is your computer?

Darwin 22.5.0 arm64 arm

What steps can reproduce the bug?

a.js

import fs from 'node:fs';
import os from 'node:os';
import puppeteer from "puppeteer";

console.log(111)

bun add puppeteer

package.json

{ "dependencies": { "puppeteer": "^21.1.1" } }

bun build a.js --compile

./a

What is the expected behavior?

111

What do you see instead?

53899 |     }
53900 |   }
53901 | }
53902 | 
53903 | 
53904 | class CDPClientAdapter extends BidiMapper.EventEmitter {
                                  ^
TypeError: undefined is not an object (evaluating 'BidiMapper.EventEmitter')
      at compiled://root/a:53904:31

Additional information

bun run works well

[Makaran21]

Is there any solution for this problem yet? I'm facing the same issue.

[entrptaher]

If I use require instead of import, the code works.

Working code,

const puppeteer = require("puppeteer");

(async () => {
  const browser = await puppeteer.launch();
  const page = await browser.newPage();
  await page.goto("https://example.com/");
  console.log(await page.title());
  await browser.close();
})();

Command line,

bun build scrape.js --outfile scrape --target node --compile

Non working code,

import puppeteer from "puppeteer";

(async () => {
  const browser = await puppeteer.launch();
  const page = await browser.newPage();
  await page.goto("https://example.com/");
  console.log(await page.title());
  await browser.close();
})();

Error,

 ./scrape                                                    
17661 |       adapter.close();
17662 |     }
17663 |   }
17664 | }
17665 | 
17666 | class CDPClientAdapter extends BidiMapper.EventEmitter {
                                       ^
TypeError: undefined is not an object (evaluating 'BidiMapper.EventEmitter')
      at /$bunfs/root/scrape:17666:32

[YuziO2]

1.1.3 the same problem

[RifkiSalim]

I can confirm that this still is an issue in bun version 1.1.3

[CristianPi]

Same here, still broken on 1.1.4

[dulranga]

Still broken on v1.1.6

[Makaran21]

Still broken on v1.1.10

[entrptaher]

As stated before this is probably caused by the compiler. Because when I convert or transpile the project to cjs and then try to bundle it with bun, it works nicely. There was a swc plugin as well but it's archived, but I think we can improvise something like this.

Example code:

import puppeteer from "puppeteer";

console.log('launching')
const browser = await puppeteer.launch();
const page = await browser.newPage();

console.log('navigating')
await page.goto("https://example.com");
await page.screenshot({ path: "example.png" });

console.log('closing')
await browser.close();

Example commands:

# install the things
bun install @swc/cli @swc/core

# use swc to convert this to cjs
bun swc index.ts -C module.type=commonjs -o index.js

# now use bun to create a single executable
bun build index.js --target=bun --compile --outfile index --minify

# run it and done!
./index

Sample output:

➜ bun swc index.ts -C module.type=commonjs -o index.js              
Successfully compiled 1 file with swc.

➜ bun build index.js --target=bun --compile --outfile index --minify
 [127ms]  minify  -7.90 MB (estimate)
  [33ms]  bundle  564 modules
  [47ms] compile  index

➜ ls -lah index 
-rwxrwxrwx 1 developer developer 99M Jun  9 11:12 index

➜ ./index
launching
navigating
closing

Unless this is fixed from the bun, this is kind of alternative solution for me for now.

Side note: The swc is way much faster with bun than node for this example. Almost 9-10x faster.

 hyperfine "bun swc index.ts -C module.type=commonjs -o index.js"
Benchmark 1: bun swc index.ts -C module.type=commonjs -o index.js
  Time (mean ± σ):      53.4 ms ±   1.9 ms    [User: 48.7 ms, System: 23.1 ms]
  Range (min … max):    51.6 ms …  62.0 ms    48 runs

hyperfine "pnpm swc index.ts -C module.type=commonjs -o index.js"
Benchmark 1: pnpm swc index.ts -C module.type=commonjs -o index.js
  Time (mean ± σ):     466.7 ms ±  11.0 ms    [User: 224.7 ms, System: 57.6 ms]
  Range (min … max):   452.4 ms … 486.0 ms    10 runs