I'm using Elm 0.18 and trying to convert http errors into strings.
The simple module below:
import Http exposing ( .. )
httpErrorString : Http.Error -> String
httpErrorString error =
case error of
Http.BadStatus ( Response response ) ->
"bad status [" ++ response ++ "]"
fails to compile with the following error:
Cannot find pattern `Response`
6| Http.BadStatus ( Response response ) ->
^^^^^^^^^^^^^^^^^
If I make the reference to Response explicit by prefixing Http. like this:
import Http exposing ( .. )
httpErrorString : Http.Error -> String
httpErrorString error =
case error of
Http.BadStatus ( Http.Response response ) ->
"bad status [" ++ response ++ "]"
then I get this compilation error message:
Cannot find pattern `Http.Response`.
6| Http.BadStatus ( Http.Response response ) ->
^^^^^^^^^^^^^^^^^^^^^^
`Http` does not expose `Response`.
My local elm-stuff/packages/elm-lang/http/1.0.0/src/Http.elm file clearly
appears to export Response:
module Http exposing
( Request, send, Error(..)
, getString, get
, post
, request
, Header, header
, Body, emptyBody, jsonBody, stringBody, multipartBody, Part, stringPart
, Expect, expectString, expectJson, expectStringResponse, Response
, encodeUri, decodeUri, toTask
)
I don't understand the error in my pattern matching, nor the compiler's
message about Response not being exported.
Can anyone explain what's going wrong here?
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