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-rw-r--r--src/RemoteData.elm52
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diff --git a/src/RemoteData.elm b/src/RemoteData.elm
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+module RemoteData exposing (..)
+
+import Http
+
+
+type RemoteData a
+ = Initial
+ | Loading
+ | Failure Http.Error
+ | Success a
+
+
+withDefault : a -> RemoteData a -> a
+withDefault default rd =
+ case rd of
+ Success value ->
+ value
+
+ _ ->
+ default
+
+
+map : (a -> b) -> RemoteData a -> RemoteData b
+map fn rd =
+ case rd of
+ Initial ->
+ Initial
+
+ Loading ->
+ Loading
+
+ Failure err ->
+ Failure err
+
+ Success value ->
+ Success (fn value)
+
+
+andThen : (a -> RemoteData b) -> RemoteData a -> RemoteData b
+andThen callback rd =
+ case rd of
+ Initial ->
+ Initial
+
+ Loading ->
+ Loading
+
+ Failure err ->
+ Failure err
+
+ Success value ->
+ callback value