Package: effect
Module: Channel
Promotes nested reason errors into the channel error, replacing the parent error.
Example (Promoting nested reasons)
import { Channel, Data } from "effect"
class RateLimitError extends Data.TaggedError("RateLimitError")<{
retryAfter: number
}> {}
class QuotaExceededError extends Data.TaggedError("QuotaExceededError")<{
limit: number
}> {}
class AiError extends Data.TaggedError("AiError")<{
reason: RateLimitError | QuotaExceededError
}> {}
const channel = Channel.fail(
new AiError({ reason: new RateLimitError({ retryAfter: 60 }) })
)
const unwrapped = channel.pipe(Channel.unwrapReason("AiError"))
Signature
declare const unwrapReason: { <K extends TagsWithReason<OutErr>, OutErr>(errorTag: K): <OutElem, OutDone, InElem, InErr, InDone, Env>(self: Channel<OutElem, OutErr, OutDone, InElem, InErr, InDone, Env>) => Channel<OutElem, Types.ExcludeTag<OutErr, K> | Types.ReasonOf<Types.ExtractTag<OutErr, K>>, OutDone, InElem, InErr, InDone, Env>; <OutElem, OutErr, OutDone, InElem, InErr, InDone, Env, K extends TagsWithReason<OutErr>>(self: Channel<OutElem, OutErr, OutDone, InElem, InErr, InDone, Env>, errorTag: K): Channel<OutElem, Types.ExcludeTag<OutErr, K> | Types.ReasonOf<Types.ExtractTag<OutErr, K>>, OutDone, InElem, InErr, InDone, Env>; }
Since v4.0.0