Variable fromPromise`Const`

fromPromise: <T, E>(
promise: PromiseLike<T>,
onReject: (error: unknown) => E,
) => ResultAsync<T, E> = ResultAsync.fromPromise

Wraps a PromiseLike<T> into a ResultAsync. Reject reasons go through onReject to become typed Errs; success becomes Ok<T>.

Type Declaration

- <T, E>(
  promise: PromiseLike<T>,
  onReject: (error: unknown) => E,
  ): ResultAsync<T, E>
- Type Parameters
  - T
  - E
  Parameters
  - promise: PromiseLike<T>
  - onReject: (error: unknown) => E
  Returns ResultAsync<T, E>

Example

const body = fromPromise(
  fetch(url).then((r) => r.text()),
  (e): NetworkError => ({ kind: "network", cause: String(e) }),
);