Clojurians Log v2

Found a possible workaround here. The core problem seems to be that we use ts-node, and that has issues with ESM imports. But if I make our server startup pure JS, and tell ts-node to not transpile files with the .js extension, it works: ts-node --ignore \.js src/server.js. That also explains the error, which I think occurred because ts-node was "helpfully" converting import to require behind the scenes.

aha!

@dave.dixon Here is how you do that:

async function nREPL() {
  const { loadString } = await import('nbb');
  await loadString(`
  (require '[nbb.nrepl-server :as nrepl])
  (nrepl/start-server! {:port 1337})
`);
}

nREPL();

Thanks, but there's some issue with how we have our TypeScript project set up where it doesn't work. I either need to sneak in a pure JS script that avoids the TS transpiler, or get the right set of TS config options that won't break compilation on the rest of our codebase.

Thanks. I'll work on this a bit. Pretty sure the above is possible, and maybe I can call the TypeScript API directly to compile/load from nbb. I'll research it.

https://2ality.com/2021/06/typescript-esm-nodejs.html

How about coming at this from the other direction, and launching a REPL server from the JS end?

perhaps make an issue for this, I don't think this is currently exposed

Ah there an issue for it here: https://github.com/babashka/nbb/issues/132

@dave.dixon Publishing 1.1.145 now which should have this: https://github.com/babashka/nbb#nrepl-api

crap, build failure on CI

retrying a new publish

OK, this worked, version 1.1.146

Thanks. I seem to be stuck in module incompatbility hell, Instead change the require of /Users/dave.dixon/Projects/de_flare/node_modules/nbb/index.mjs to a dynamic import() which is available in all CommonJS modules., so far haven't been able to try this out. I'll see if I can find a workaround.

Yes, you could do this as a dynamic import in an async function if you’re using cjs