使用 Json.net 的 Instagram API

Posted 2023-04-12

【中文标题】使用 Json.net 的 Instagram API

【英文标题】：Instagram API using Json.net

【发布时间】：2014-05-11 15:36:19

【问题描述】：

我正在开发一个桌面程序，基本上我只是想收集有关计时器或循环的信息，因此每次循环运行时，它都会从 Instagram 提供的 JSON 中保存一个 ID，然后转到网络上，然后以此类推，我决定仅在提供的 Json instagram 中的一张图片上进行测试，如下所示。

---

"pagination":"next_max_tag_id":"1399847337728968","deprecation_warning":"next_max_id and min_id are deprecated for this endpoint; use min_tag_id and max_tag_id instead","next_max_id":"1399847337728968","next_min_id":"1399847337793336","min_tag_id":"1399847337793336","next_url":"https:\/\/api.instagram.com\/v1\/tags\/snow\/media\/recent?access_token=+49749273.8a6c775.3e8cf314d75045e49ba17263d0bededa\u0026count=1\u0026max_tag_id=1399847337728968","meta":"code":200,"data":["attribution":null,"tags":["ilovenorway","hiking","spring","sunny","blaaskjerdigen","bluebird","cloud","clouds","redbullnorge","sun","visit","snow","aalesund","sunnm\u00f8rsalps","nofilter","norway","redbull"],"type":"image","location":"latitude":62.595061667,"longitude":6.735158333,"comments":"count":0,"data":[],"filter":"Normal","created_time":"1399822137","link":"http:\/\/instagram.com\/p\/n3JFAHGTdZ\/","likes":"count":0,"data":[],"images":"low_resolution":"url":"http:\/\/origincache-ash.fbcdn.net\/10326375_690380867685736_1411474740_a.jpg","width":306,"height":306,"thumbnail":"url":"http:\/\/origincache-ash.fbcdn.net\/10326375_690380867685736_1411474740_s.jpg","width":150,"height":150,"standard_resolution":"url":"http:\/\/origincache-ash.fbcdn.net\/10326375_690380867685736_1411474740_n.jpg","width":640,"height":640,"users_in_photo":["position":"y":0.040625,"x":0.06535948,"user":"username":"redbullnorge","profile_picture":"http:\/\/images.ak.instagram.com\/profiles\/profile_184192460_75sq_1342379531.jpg","id":"184192460","full_name":"Red Bull Norge","position":"y":0.9609375,"x":0.06535948,"user":"username":"redbull","profile_picture":"http:\/\/images.ak.instagram.com\/profiles\/profile_476322_75sq_1334010289.jpg","id":"476322","full_name":"Red Bull"],"caption":"created_time":"1399822137","text":"#nofilter #blaaskjerdigen #bluebird #cloud #clouds #sun #sunny #hiking #snow #spring #ilovenorway #redbull #redbullnorge #visit #norway #aalesund #sunnm\u00f8rsalps","from":"username":"jooakimandersen","profile_picture":"http:\/\/images.ak.instagram.com\/profiles    \/profile_1246631612_75sq_1396821408.jpg","id":"1246631612","full_name":"Joakim Andersen","id":"718082592168556034","user_has_liked":false,"id":"718082591723960153_1246631612","user":"username":"jooakimandersen","website":"","profile_picture":"http:\/\/images.ak.instagram.com\/profiles\/profile_1246631612_75sq_1396821408.jpg","full_name":"Joakim Andersen","bio":"","id":"1246631612"]

---

我正在尝试从这个 json 文件中获取信息，如下所示

WebClient webClient = new WebClient();
var list = webClient.DownloadString("https://api.instagram.com/v1/tags/likeforlike/media/recent?access_token=" + Variables.authtoken + "&count=1");
dynamic parsedList = JsonConvert.DeserializeObject<dynamic>(list);

MessageBox.Show(parsedList.data.count.ToString());

但我无法从中得到任何东西，它会加载

 MessageBox.Show(parsedList.data.ToString());

很好，但我无法更深入地了解信息

【问题讨论】：

dynamic 非常有用。然而，人们总是试图在它不属于它的情况下使用它。不要使用dynamic，而是要自己思考是否更适合创建类。答案通常是“是”。方便的是，有一个工具可以为您从 JSON 创建 C# 类，Craig 已经为您演示了。

【参考方案1】：

使用 json2csharp (http://json2csharp.com) 我们生成了以下类。

public class Pagination

    public string next_max_tag_id  get; set; 
    public string deprecation_warning  get; set; 
    public string next_max_id  get; set; 
    public string next_min_id  get; set; 
    public string min_tag_id  get; set; 
    public string next_url  get; set; 


public class Meta

    public int code  get; set; 


public class Location

    public double latitude  get; set; 
    public double longitude  get; set; 


public class Comments

    public int count  get; set; 
    public List<object> data  get; set; 


public class Likes

    public int count  get; set; 
    public List<object> data  get; set; 


public class LowResolution

    public string url  get; set; 
    public int width  get; set; 
    public int height  get; set; 


public class Thumbnail

    public string url  get; set; 
    public int width  get; set; 
    public int height  get; set; 


public class StandardResolution

    public string url  get; set; 
    public int width  get; set; 
    public int height  get; set; 


public class Images

    public LowResolution low_resolution  get; set; 
    public Thumbnail thumbnail  get; set; 
    public StandardResolution standard_resolution  get; set; 


public class Position

    public double y  get; set; 
    public double x  get; set; 


public class User

    public string username  get; set; 
    public string profile_picture  get; set; 
    public string id  get; set; 
    public string full_name  get; set; 


public class UsersInPhoto

    public Position position  get; set; 
    public User user  get; set; 


public class From

    public string username  get; set; 
    public string profile_picture  get; set; 
    public string id  get; set; 
    public string full_name  get; set; 


public class Caption

    public string created_time  get; set; 
    public string text  get; set; 
    public From from  get; set; 
    public string id  get; set; 


public class User2

    public string username  get; set; 
    public string website  get; set; 
    public string profile_picture  get; set; 
    public string full_name  get; set; 
    public string bio  get; set; 
    public string id  get; set; 


public class Datum

    public object attribution  get; set; 
    public List<string> tags  get; set; 
    public string type  get; set; 
    public Location location  get; set; 
    public Comments comments  get; set; 
    public string filter  get; set; 
    public string created_time  get; set; 
    public string link  get; set; 
    public Likes likes  get; set; 
    public Images images  get; set; 
    public List<UsersInPhoto> users_in_photo  get; set; 
    public Caption caption  get; set; 
    public bool user_has_liked  get; set; 
    public string id  get; set; 
    public User2 user  get; set; 


public class RootObject

    public Pagination pagination  get; set; 
    public Meta meta  get; set; 
    public List<Datum> data  get; set; 

然后您应该能够使用 JSON.NET 反序列化为该结构。

var root = JsonConvert.DeserializeObject<RootObject>(list);

此时只需拉取您需要的属性。

【讨论】：

谢谢你完美的工作。我读错了结构。感谢您的帮助！

如果它解决了您的问题，请考虑通过单击答案旁边的复选标记将其标记为答案。谢谢。