Hi,
having a super-quick scan of your code, look at this line:
|> required "data" Decode.list
You say: "data" is a list of… you did not tell what kind of list.
Have to go now, so you are on your own, but just focus on this problem.
Regards,
Witold Szczerba
On Thu, Mar 2, 2017 at 1:20 PM, Євген Петров <doctorx....@gmail.com> wrote:
> Hello, All
>
> I do not understand how to work Json.Decode.Pipeline for nested Json.
>
> Json Structure
> {
> "count": "null",
> "data": [
> {
> "configType": "2",
> "date": "2012-02-07 11:51:29",
> "desc": "Access Limiter",
> "id": "26",
> "term": "ACCESS_LIMITER"
> },
> {
> "configType": "2",
> "date": "2012-02-07 11:51:29",
> "desc": "Sort top boxes",
> "id": "2",
> "term": "BOXES.SORT"
> }
> ],
> "messages": "",
> "success": "true"
> }
>
> decodeRisResponse : Decode.Decoder RisConfigResponse
> decodeRisResponse =
> decode RisConfigResponse
> |> required "count" Decode.string
> |> required "data" Decode.list
> |> required "message" Decode.string
> |> required "success" Decode.bool
>
> decodeConfigs : Decode.Decoder (List Config)
> decodeConfigs =
> Decode.list decodeConfig
>
> decodeConfig : Decode.Decoder Config
> decodeConfig =
> decode Config
> |> required "id" Decode.string
> |> required "term" Decode.string
> |> required "desc" Decode.string
> |> required "date" Decode.string
> |> required "configType" Decode.string
>
> type alias RisConfigResponse =
> {
> count : String
> , data : (List Config)
> , message : String
> , success : Bool
> }
>
>
>
> type alias ConfigId = String
>
> type alias Config =
> {
> id: ConfigId
> , term : String
> , desc : String
> , date : String
> , configType : String
> }
>
>
> But I have Error
>
> 2:16:39 PM client.1 | -- TYPE MISMATCH
> --------------------------------------------
>> ./src/Commands.elm
>> 2:16:39 PM client.1 | The 2nd argument to function `required` is causing
>> a mismatch.
>> 2:16:39 PM client.1 | 25| required "data" Decode.list
>> 2:16:39 PM client.1 | ^^^^^^^^^^^
>> 2:16:39 PM client.1 | Function `required` is expecting the 2nd argument
>> to be:
>> 2:16:39 PM client.1 | Decode.Decoder (List a)
>> 2:16:39 PM client.1 | But it is:
>> 2:16:39 PM client.1 | Decode.Decoder a -> Decode.Decoder (List a)
>> 2:16:39 P
>
>
> How do it parse "data" : (List Config) ?
>
> P.S. Sorry for my english ^)
>
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