Exts.RemoteData

A datatype representing fetched data.

= NotAsked

| Loading

| Failure e

| Success a

Frequently when you're fetching data from an API, you want to represent four different states: * NotAsked - We haven't asked for the data yet. * Loading - We've asked, but haven't got an answer yet. * Failure - We asked, but something went wrong. Here's the error. * Success - Everything worked, and here's the data.

map : (a -> b) -> RemoteData e a -> RemoteData e b

Map a function into the Success value.

mapFailure : (e -> f) -> RemoteData e a -> RemoteData f a

Map a function into the Failure value.

mapBoth : (a -> b) -> (e -> f) -> RemoteData e a -> RemoteData f b

Map function into both the Success and Failure value.

withDefault : a -> RemoteData e a -> a

Return the Success value, or the default.

fromResult : Result e a -> RemoteData e a

Convert a Result Error, probably produced from elm-http, to a RemoteData value.

asEffect : Task e a -> Effects (RemoteData e a)

Convert a web Task, probably produced from elm-http, to a RemoteData Effect.

mappend : RemoteData e a -> RemoteData e b -> RemoteData e ( a, b )

Monoidal append - join two RemoteData values together as though they were one. If both values are Failure, the left one wins.

isSuccess : RemoteData e a -> Bool

State-checking predicate. Returns true if we've successfully loaded some data.

krisajenkins/elm-exts/17.1.1

Exts.RemoteData

Modules