Facebook访问令牌不断过期c#

Question

我有一个运行计划作业的 Web 应用程序，该作业从我管理的页面中提取 Facebook 评论。这是一个sn-p

public void Execute(IJobExecutionContext context)
    {
        //get api details from the web.config
        var pageId = WebConfigurationManager.AppSettings["FacebookPageId"];
        var token = WebConfigurationManager.AppSettings["FacebookAPIToken"];

        if (!string.IsNullOrEmpty(token))
        {
            //create a facebook client object
            var client = new FacebookClient(token);

            //make a call to facebook to retrieve the json data
            dynamic graphJson = client.Get(pageId + "?fields=ratings{review_text,reviewer,rating}").ToString();

            //deserialize the json returned from facebook
            ReviewDeserializeData reviews = JsonConvert.DeserializeObject<ReviewDeserializeData>(graphJson);

            //loop through the deserialized data and pass each review to the import class
            foreach (var rating in reviews.ratings.data)
            {
                var fbRating = new FacebookRating
                    {
                        RatingReviewerId = long.Parse(rating.reviewer.id),
                        StarRating = rating.rating,
                        ReviewerName = rating.reviewer.name,
                        ReviewText = rating.review_text
                    };

                ImportFacebookRating.ImportTheFacebookRating(fbRating);
            }
        }

    }

在页面访问令牌过期之前，这非常有效。我已经尝试关注很多文章，例如这篇https://medium.com/@Jenananthan/how-to-create-non-expiry-facebook-page-token-6505c642d0b1#.24vb5pyiv，但我没有解决令牌过期问题。

有谁知道我如何实现这一点，或者如果现有令牌已过期，是否有办法以编程方式生成新令牌？目前我将它作为应用设置存储在 web.config 中。

谢谢

Answer 1

我在这里找到了答案，并且能够生成一个“永不”过期的令牌Long-lasting FB access-token for server to pull FB page info