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NodeJS crashes because Promise errors are handled using try...catch #1888

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DenisVASI9 opened this issue Jun 27, 2023 · 2 comments
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@DenisVASI9
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DenisVASI9 commented Jun 27, 2023

🐛 Bug report

Current Behavior

NodeJS crashes because Promise errors are handled using try...catch

Reproducible example

import { Either, tryCatch } from "fp-ts/lib/Either";

function test(error: boolean): Promise<void> {
    return new Promise((resolve, reject) => {
        if (error) {
            return reject();
        }
        return resolve();
    });
}


const testEither = (error: boolean): Either<string, Promise<void>> =>
  tryCatch(
    () => test(error),
    (error) => `${error}`
  );

  console.log(testEither(true))
{ _tag: 'Right', right: Promise { <rejected> undefined } }
node:internal/process/promises:288
            triggerUncaughtException(err, true /* fromPromise */);
            ^

[UnhandledPromiseRejection: This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). The promise rejected with the reason "undefined".] {
  code: 'ERR_UNHANDLED_REJECTION'
}
Node.js v18.9.0
@samhh
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samhh commented Jun 27, 2023

https://gcanti.github.io/fp-ts/modules/TaskEither.ts.html#trycatch

@DenisVASI9
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@samhh Hvala brate, sada sve radi

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