Unable to parse the OData service in JSON

Question

Hi,
Need to parse the OData Service in JSON format.Able to successfully get Service and MetaData documents. After that, when try to parse OData service returning response in JSON.
Below  code is throwing exception.
Server Used:SMP3.0
ODATA SDK Used:SMP3.0 ODATA SDK
Service Used: http://services.odata.org/v2/Odata/Odata.svc/Products?$format=json
Code Snippet:
   @try {
      ODataCollection *collc = [[self.serviceDocument getSchema] getCollectionByName:_srvcInfo.serviceEntityName];
      ODataEntitySchema *schema = [collc getEntitySchema];
      //Instantiate parser for Carrier entity
     ODataDataParser *dataParser=[[ODataDataParser alloc] initWithEntitySchema:schemaandServiceDocument:self.serviceDocument];
      //Parses a feed or an entry xml or json
      [dataParser parse:entriesData];
      results = dataParser.entries;
  @catch(NSException *e) {
      NSLog(@"Exception:%@, %@", e.description, e.debugDescription);
Exception:
-[__NSCFArray objectForKey:]: unrecognized selector sent to instance
However Service Used:http://services.odata.org/V3/Northwind/Northwind.svc/Products?$format=json. Not
throwing any exception, but dataParser.entries is returning 0 objects
Please let us know, is the same API is used for parsing JSON.
What can be the reason of issue and what are possible resolution.
Thanks,
Parveen.

Answer 1

My expert area is not IOS but you can check this IOS Odata development tutorial that might help you,Getting started with SMP3 Native OData iOS apps
Midhun VP