56 lines
1.5 KiB
Elm
56 lines
1.5 KiB
Elm
module Http where
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{-| A library for asynchronous HTTP requests. See the
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[WebSocket](http://elm-lang.org/docs/WebSocket.elm) library if
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you have very strict latency requirements.
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# Sending Requests
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@docs send, sendGet
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# Creating Requests
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@docs get, post, request
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# Responses
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@docs Response
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-}
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import open Signal
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import Native.Http
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{-| The datatype for responses. Success contains only the returned message.
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Failures contain both an error code and an error message.
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-}
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data Response a = Success a | Waiting | Failure Int String
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type Request a = {
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verb : String,
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url : String,
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body : a,
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headers : [(String,String)]
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}
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{-| Create a customized request. Arguments are request type (get, post, put,
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delete, etc.), target url, data, and a list of additional headers.
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-}
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request : String -> String -> String -> [(String,String)] -> Request String
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request = Request
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{-| Create a GET request to the given url. -}
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get : String -> Request String
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get url = Request "GET" url "" []
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{-| Create a POST request to the given url, carrying the given data. -}
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post : String -> String -> Request String
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post url body = Request "POST" url body []
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{-| Performs an HTTP request with the given requests. Produces a signal
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that carries the responses.
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-}
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send : Signal (Request a) -> Signal (Response String)
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send = Native.Http.send
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{-| Performs an HTTP GET request with the given urls. Produces a signal
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that carries the responses.
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-}
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sendGet : Signal String -> Signal (Response String)
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sendGet reqs = send (lift get reqs)
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