elm-http-xml

Generates HTTP request for XML API. Can be used with elm/http.

Using ymtszw/elm-xml-decode for decoding XML response into Elm values.

Basic Example

import Http
import Http.Xml
import Xml.Decode exposing (..)

type alias Data =
    { string : String
    , integers : List Int
    }

type Msg = XmlApiResponse (Result Http.Error Data)

getXml : Cmd Msg
getXml =
    Http.get
        { url = "https://example.com/data.xml"
        , expect = Http.Xml.expectXml XmlApiResponse dataDecoder
        }

dataDecoder : Decoder Data
dataDecoder =
    map2 Data
        (path [ "path", "to", "string" ] (single string))
        (path [ "path", "to", "int", "list" ] (list int))

-- Use with customization
trickyGetXml : Cmd Msg
trickyGetXml =
    Http.riskyRequest
        { method = "GET"
        , headers = [ Http.header "Accept" "application/xml" ]
        , url = "https://example.com/data.xml"
        , body = Http.emptyBody
        , expect = Http.Xml.expectXml XmlApiResponse dataDecoder
        , timeout = Nothing
        , tracker = Nothing
        }

Upgrade from 1.x to 2.x

• It now supports elm/[email protected], which drops Http.Request data type. As a result, there is no interface to nicely add Accept: application/xml header. You have to add the header if your target servers rigorously require them.
  • Probably the most reasonable interface which should take Accept header values are Http.Expect.
  • See this issue: https://github.com/elm/http/issues/54

License

BSD-3-Clause