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stevebluck avatar stevebluck commented on July 18, 2024 2

I would like a refineOrDie method which refines the error channel or dies based on custom logic such as refinements. This is useful for cases where I do not have a tagged error and wish to map an E to some E1 or die.

Something like so:

export const refineErrorOrDie =
  <A, E, E1>(f: (e: E) => Option.Option<E1>) =>
  (self: Effect.Effect<A, E>): Effect.Effect<A, E1> =>
    self.pipe(
      Effect.catchAll((e) =>
        Option.match(f(e), {
          onNone: () => Effect.die(e),
          onSome: Effect.fail
        })
      )
    )

I can accomplish the same thing with a catchAll but it requires some type annotations which isn't ideal:

Effect.catchAll((e) => {
  if (isUniqueConstraintError(e)) {
    return Effect.fail<Chip.AlreadyExists | Team.NotFound>(new Chip.AlreadyExists())
  }

  if (isForegienKeyConstraintError(e)) {
    return Effect.fail<Chip.AlreadyExists | Team.NotFound>(new Team.NotFound())
  }

  return Effect.die(e)
})

from effect.

tim-smart avatar tim-smart commented on July 18, 2024

You can use Effect.catchIf(isSomeError, Effect.die)

from effect.

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