prool/instances is not exported in published npm package

[L8D]

Hello. I installed version 0.0.12 and the instances are available under prool/exports/instances but not under prool/instances

Cannot find module 'prool/instances' or its corresponding type declarations.
  There are types at '.../node_modules/prool/_lib/exports/instances.d.ts', but this result could not be resolved under your current 'moduleResolution' setting. Consider updating to 'node16', 'nodenext', or 'bundler'. (tsserver 2307)

[jxom]

Can you provide a minimal reproduction?

[L8D]

@jxom

mkdir foo && cd foo && npm init -y && npm install -D jest ts-jest typescript @types/jest prool && npx tsc --init && npx ts-jest config:init
cat - > myprooltest.test.ts <<EOF
import { createServer } from 'prool'
import { anvil } from 'prool/instances'

describe('my anvil server', () => {
	it('starts', async () => {
		const server = createServer({
			instance: anvil()
		})

		await server.start()
	})
})
EOF
npx jest

copy & paste into terminal and you will find the error below:

 FAIL  ./myprooltest.test.ts
  ● Test suite failed to run

    myprooltest.test.ts:2:23 - error TS2307: Cannot find module 'prool/instances' or its corresponding type declarations.

    2 import { anvil } from 'prool/instances'
                            ~~~~~~~~~~~~~~~~~

Test Suites: 1 failed, 1 total
Tests:       0 total
Snapshots:   0 total
Time:        0.683 s
Ran all test suites.

[jxom]

Yeah Jest isn't really ESM friendly, especially with package.json#exports. Will probably need to add proxy packages so it can pick up the entrypoints 😕.

Highly recommend to use Vitest though.

[cstoneham]

FYI just ran into the same issue here :(

[WardenJakx]

Same here plz fix

[jxom]

PRs welcome.

[cstoneham]

FYI I'm still seeing this issue after migrating to vitest - @jxom what's the root of this problem? Happy to look into it but would help to have some context on why you think this might be happening.

*EDIT, looks like it's a combination of these issues:
microsoft/TypeScript#33079 (comment)
microsoft/TypeScript#50058 (comment)

[cstoneham]

@L8D FYI if you're in a pinch like me I published a version rainmaker-prool which exports everything from the main export as a workaround until we get this fully figured out:

import { anvil, createServer, CreateServerReturnType } from "rainmaker-prool";

it also includes a polyfill for Promise.withResolve which you'd likely have trouble with too.
https://github.com/ungap/with-resolvers

[jxom]

What version of Node are you running? Prool only supports Node >=22 for now.

[jxom]

OP issue fixed via a879039.

[cstoneham]

thanks @jxom!

QQ, how do we use this in our projects? I updated to 0.0.15 but still getting Cannot find module 'prool/instances' or its corresponding type declarations. when i try to import like this:

import { anvil } from "prool/instances";

anything I need to change?