Hi,

I've been the past days trying to test my first in-app purchse iphone application. Unfortunately I can't find the way to talk to iTunes server to verify the transactionReceipt.

Because it's my first try with this technology I chose to verify the receipt directly from the iPhone instead using server support. But after trying to send the POST request with a JSON onbject created using the JSON api from google code, itunes always returns a strange response (instead the "status = 0" string I wait for).

Here's the code that I use to verify the receipt:

- (void)recordTransaction:(SKPaymentTransaction *)transaction {
NSString *receiptStr = [[NSString alloc] initWithData:transaction.transactionReceipt encoding:NSUTF8StringEncoding];
NSDictionary *jsonDictionary = [NSDictionary dictionaryWithObjectsAndKeys:@"algo mas",@"receipt-data",nil];

NSString *jsonString = [jsonDictionary JSONRepresentation];
NSLog(@"string to send: %@",jsonString);

NSLog(@"JSON Created");
urlData = [[NSMutableData data] retain];

//NSURL *sandboxStoreURL = [[NSURL alloc] initWithString:@"https://sandbox.itunes.apple.com/verifyReceipt"];

NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"https://sandbox.itunes.apple.com/verifyReceipt"]];
[request setHTTPMethod:@"POST"];
[request setHTTPBody:[jsonString dataUsingEncoding:NSUTF8StringEncoding]];
NSLog(@"will create connection");
[[NSURLConnection alloc] initWithRequest:request delegate:self];

}

maybe I'm forgetting something in the request's headers but I think that the problem is in the method I use to create the JSON object.

HEre's how the JSON object looks like before I add it to the HTTPBody :

    string to send: {"receipt-data":"{\n\t\"signature\" = \"AUYMbhY

       ...........

D0gIjEuMCI7Cn0=\";\n\t\"pod\" = \"100\";\n\t\"signing-status\" = \"0\";\n}"}

The responses I've got:

complete response { exception = "java.lang.IllegalArgumentException: Property list parsing failed while attempting to read unquoted string. No allowable characters were found. At line number: 1, column: 0."; status = 21002; }

Thanks a lot for your guidance.