MeteorClient+Task.m

@implementation MeteorClient (GFTask)
- (SPTask*)gf_sendMethod:(NSString*)method parameters:(NSArray*)params
{
    SPTaskCompletionSource *source = [SPTaskCompletionSource new];
    
    [self sendWithMethodName:method parameters:params responseCallback:^(NSDictionary *response, NSError *error) {
        if(error) {
            [source failWithError:error];
        } else {
            [source completeWithValue:response];
        }
    }];
    
    return source.task;
}
@end