Hi, for using arrow-core-retrofit integration on 0...

# arrow

[Hiosdra]

Hi, for using arrow-core-retrofit integration on 0.11.0-SNAPSHOT I have: (left is Unit bec. I will never have body there)

@GET("foo")
  suspend fun getFoo(
    @Query("param") param: String
  ): Either<Unit, FooDto>

and helper (ideally unnecessary) method:

fun notGonnaHappenError(): Throwable = TODO()

How to return Either<DomainError, FooDto> ?
I have this method:

private suspend fun getFoo(param: Bar): Either<DomainError, FooDto> =
    Either.catch { client.getFoo(param.value).mapLeft { notGonnaHappenError() } }
      .flatten()
      .mapLeft { DomainError(it) }

But I think it’s not as beautiful as it can be…

[stojan]

drop the Either

[stojan]

suspend fun getFoo(): FooDto

natively supported by retrofit

[stojan]

also... technically Nothing is the correct type for "this can't happen"

[Hiosdra]

Yyyym yep, too much fp…

https://www.youtube.com/watch?v=WCOgA4Tvu1k▾

thx