TaskToken to cancel running tasks with BFTask

gistfile1.m

- (BFTask *)loadSomeDataWithToken:(TaskToken *)token
{
    BFTask *getSomeDataTask;
    BFTask *getOtherDataTask;
    getSomeDataTask = [[APIClient sharedClient] withToken:token executeAPI:^BFTask *(APIClient *client) {
        return [[client getSomeDataWithParameters:@{}] continueWithSuccessBlock:^id(BFTask *task) {
            // TODO: do something
            return task;
        }];
    }];
    getSomeDataTask = [[APIClient sharedClient] withToken:token executeAPI:^BFTask *(APIClient *client) {
        return [[client getOtherDataWithParameters:@{@"user": @"akisute"}] continueWithSuccessBlock:^id(BFTask *task) {
            // TODO: do other thing
            return task;
        }];
    }];
    return [BFTask taskForCompletionOfAllTasks:@[getSomeDataTask, getOtherDataTask]];
}


- (void)doSomethingInSomewhere
{
    self.token = [TaskToken token];
    [[self loadSomeDataWithToken:token] continueWithSuccessBlock:^id(BFTask *task) {
        // TODO: update data
        self.token = nil;
        return task;
    }];
}

- (void)cancelLoading
{
    if (self.token) {
        [self.token cancel];
        self.token = nil;
    }
}