Hi Sven (et al),

On 10 December 2017 at 11:45, Ben Coman <btc@openinworld.com> wrote:

3. Finally parse into real objects��the nested level holding the data you really want...

Object subclass: #Market
instanceVariableNames: 'MarketCurrency BaseCurrency MarketCurrencyLong BaseCurrencyLong MinTradeSize MarketName IsActive Created Notice IsSponsored LogoUrl'
classVariableNames: ''
package: 'Bittrex'

(ZnClient new��
url: 'https://bittrex.com/api/v1.1/public/getmarkets';
enforceHttpSuccess: true;
accept: ZnMimeType applicationJson;
contentReader: [ :entity | |reader|
reader := (NeoJSONReader on: entity readStream).
reader for: BittrexResponse do: [:m|��
m mapInstVar: #success.
m mapInstVar: #message.
(m mapInstVar: #result) valueSchema: #ArrayOfMarkets].
reader for: #ArrayOfMarkets customDo: [ :mapping | mapping listOfElementSchema: Market ].
reader mapInstVarsFor: Market.��
�� reader nextAs: BittrexResponse ];
�� get) inspect.

==>BittrexResponse
�� success => true
�� message => ''��
�� result => an Array(a Market(LTC) a Market(DOGE) a Market(VTC) a Market(PPC) a Market(FTC) a Market(RDD)��
... Market(POWR) a Market(BTG) a Market(BTG) a Market(BTG) a Market(ADA) a Market(ENG) a Market(ENG))

So the code of [3.] above works fine when the raw response looks like this...

(ZnClient new��

url: 'https://bittrex.com/api/v1.1/public/getmarkets';

get) inspect.

==>��{"success":true,

�� "message":"",

�� "result": [{"MarketName":"BTC-LTC},{"MarketName":"BTC-NXT}]

�� }

But of course��[3.] doesn't work when the raw response looks like this...

(ZnClient new��

url: 'https://bittrex.com/api/v1.1/public/getticker?market=BTC-LTC';

get) inspect.

==> {"success":true,

�� "message":"",

�� "result":{"Bid":0.01765465,"Ask":0.01769000,"Last":0.01763350}

�� }

since result is a json-object not a json-array.�� But I can't work out��

how to map the JSON object into��the 'result' instance variable��of BittrexResponse,��

where...

BittrexObject subclass: #BittrexTicker

instanceVariableNames: 'Bid Ask Last'

classVariableNames: ''

package: 'Bittrex'

My best guesses so far are uncommenting either [A.] or [B.] below...

(ZnClient new��

url: 'https://bittrex.com/api/v1.1/public/getticker?market=BTC-LTC';

enforceHttpSuccess: true;

accept: ZnMimeType applicationJson;

contentReader: [ :entity | |reader|

reader := (NeoJSONReader on: entity readStream).

reader for: BittrexResponse do: [:m|��

m mapInstVar: #success.

m mapInstVar: #message.

(m mapInstVar: #result) valueSchema: #BittrexTicker].

"A. reader for: BittrexTicker do: [ :m|

m mapInstVar: #Bid]."

"B. reader for: #BittrexTicker customDo: [ :mapping |

mapping mapWithValueSchema: BittrexTicker]."

�� reader nextAs: BittrexResponse ];

�� get).

Can you advise what formulation is required?��

cheers -ben