Created
September 9, 2016 14:44
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Tips
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module Main exposing (..) | |
import Html exposing (Html, div, button, text, img, br, p) | |
import Html.Attributes exposing (src) | |
import Html.Events exposing (onClick) | |
import Html.App | |
import Http | |
import Task exposing (Task) | |
import Json.Decode as Decode exposing (Decoder(..), string, (:=), succeed, list) | |
import Extra exposing ((|:)) | |
-- MODEL | |
type alias Model = | |
List Tip | |
init : ( Model, Cmd Msg ) | |
init = | |
( [], fetchCmd ) | |
-- MESSAGES | |
type Msg | |
= Fetch | |
| FetchSuccess (List Tip) | |
| FetchError Http.Error | |
type alias Tip = | |
{ title : String | |
, date : String | |
, tags : String | |
, image : String | |
, thumbnail : String | |
} | |
-- VIEW | |
view : Model -> Html Msg | |
view model = | |
div [] | |
(List.map | |
(\x -> | |
div [] | |
[ text x.title | |
, p [] [] | |
, img [ src x.thumbnail ] [] | |
] | |
) | |
(List.filter (\x -> (x.tags == "food")) model) | |
) | |
decodeTip : Decode.Decoder Tip | |
decodeTip = | |
Decode.succeed Tip | |
|: ("title" := string) | |
|: ("date" := string) | |
|: ("tags" := string) | |
|: ("image" := string) | |
|: ("thumbnail" := string) | |
decode : Decode.Decoder (List Tip) | |
decode = | |
Decode.list decodeTip | |
url : String | |
url = | |
"https://api.myjson.com/bins/498wk" | |
fetchTask : Task Http.Error (List Tip) | |
fetchTask = | |
Http.get decode url | |
fetchCmd : Cmd Msg | |
fetchCmd = | |
Task.perform FetchError FetchSuccess fetchTask | |
-- UPDATE | |
update : Msg -> Model -> ( Model, Cmd Msg ) | |
update msg model = | |
case msg of | |
Fetch -> | |
( model, fetchCmd ) | |
FetchSuccess tips -> | |
( tips, Cmd.none ) | |
FetchError error -> | |
( [ { title = (toString error), date = "", tags = "", image = "", thumbnail = "" } ], Cmd.none ) | |
-- MAIN | |
main : Program Never | |
main = | |
Html.App.program | |
{ init = init | |
, view = view | |
, update = update | |
, subscriptions = (always Sub.none) | |
} |
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