iOS9 sendSynchronousRequest deprecated

Question

Warning:\'sendSynchronousRequest(_:returningResponse:)\' was deprecated in iOS 9.0: Use [NSURLSession dataTaskWithRequest:completionHandler:] (see NSURLSe

Answer 1

Here is a complete version of mine with dispatch_semaphore_t and return response and error without block assign warning . Thank @Nick H247 and @Mike Keskinov.

- (NSData*)sendSynchronousRequest:NSURLRequest *urlRequest
                returningResponse:(NSURLResponse **)outResponse
                            error:(NSError **)outError
{

    NSError __block *err = NULL;
    NSData __block *data;
    BOOL __block reqProcessed = false;
    NSURLResponse __block *resp;

//    data = [NSURLConnection sendSynchronousRequest:urlRequest returningResponse:response error:error];

    dispatch_semaphore_t semaphore = dispatch_semaphore_create(0);
    NSURLSession *session = _session;
    [[session dataTaskWithRequest:urlRequest
            completionHandler:^(NSData *_data,
                                NSURLResponse *_response,
                                NSError *_error) {
                // handle response
                data = _data;
                resp = _response;
                err = _error;

                reqProcessed = true;

                dispatch_semaphore_signal(semaphore);

            }] resume];

    dispatch_semaphore_wait(semaphore, DISPATCH_TIME_FOREVER);

    if (reqProcessed) {
        if(outResponse != NULL) {
            *outResponse = resp;
        }

        if (outError != NULL) {
            *outError = err;
        }

    }

    return data;
}