Decode JSON to NSArray or NSDictionary

Question

I hope to decode the JSON data below:

{
    \"content\":
    [   
        {
            \"1\":\"a\",
            \"2\":\"b\",
            \"3\":\"c\",
               


        

Answer 1

I used google speech recognition API and I was getting a json response which was not directly parsable on iOS. Results samples were like :

First I tried saying Hello 1 2 3 which was recognised without issues. Json response was :

{"result":[]}

{"result":[{"alternative":[{"transcript":"hello 123","confidence":0.59780568},{"transcript":"hello 1 2 3"}],"final":true}],"result_index":0}

Or when talked for too long, I got a 404 HTML like below :

And when I spoke gibberish , I got :

{"result":[]}

So to parse all such response, I used the below code :

 NSString *msg = @"Could not synthesize !";

    NSString *responseString = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
    NSLog(@"responseString: %@",responseString);
    if([responseString containsString:@"transcript"]&&responseString.length>25)
    {

        responseString = [responseString stringByReplacingOccurrencesOfString:@"{\"result\":[]}" withString:@""];

        NSDictionary *dictionary = [NSJSONSerialization JSONObjectWithData:[responseString dataUsingEncoding:NSUTF8StringEncoding] options:kNilOptions error:nil];

        if(dictionary!=nil)
            if(dictionary.allValues.count>0)
            {

                NSArray *array =[dictionary valueForKeyPath:@"result.alternative.transcript"];

                if(array)
                {
                    NSArray *array2 = [array objectAtIndex:0];
                    if(array2)
                    {
                        NSLog(@"%@",[array2 objectAtIndex:0] );
                        msg = [array2 objectAtIndex:0];
                    };
                }
            }
    }

    UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"Google Response" message:msg delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
    [alert show];

Hope this helps someone.