Facebook C＃sdk批量请求方法返回空数据数组

Question

我正在创建Facebook应用程序，该应用程序可获取用于多个度量标准的用户页面的见解。防爆。对于“page_active_users”和“page_active_users”在一个批量请求中。 我正在使用Facebook C＃SDK，但无法从Facebook获取数据（InsightAPI）。通过在浏览器中使用图形API方法显示数据为一个网页，但在批处理请求返回数据的空数组。

// TYPE1

var para1 = new FacebookBatchParameter(HttpMethod.Get, "MyPageId/insights/") 
{ 
    Data = new { access_token = aToken, since = "2012-01-01", metric = "page_active_users" } 
}; 

// TYPE2

var para2 = new FacebookBatchParameter(HttpMethod.Get, "fql/", new 
    { 
     q = new[]{ 

"SELECT value,end_time FROM insights WHERE object_id=MyPageId AND metric='page_active_users' AND end_time=end_time_date('2012-01-01') AND period=86400" 
      } 
    }) { Data = new { access_token = aToken } }; 

//类型3

var para3 = new FacebookBatchParameter().Query(
        "SELECT value,end_time FROM insights WHERE object_id=MyPageId AND metric='page_active_users' AND end_time=end_time_date('2012-01-01') AND period=86400"); 

//类型4

var para4 = new FacebookBatchParameter 
      { 
       Path = "MyPageId/insights/", 
       //Parameters = new {since = "2012-01-01"}, 
       Data = new { access_token = aToken, since = "2012-01-01", metric = "page_active_users" }, 
       HttpMethod = HttpMethod.Get 
      }; 

// 5型

var para5 = new FacebookBatchParameter 
      { 
       Path = "MyPageId/insights/page_active_users?since=2012-01-01", 
       //Parameters = new {since = "2012-01-01"}, 
       Data = new { access_token = aToken }, 
       HttpMethod = HttpMethod.Get 
      }; 

//Executed all above type by passing it to below method one by one.But always return empty data array while data is exists on Facebook which I tested using Grap API tool. 

var result = client.Batch(para1-5); 

任何帮助理解。 谢谢先进。 Dharmendra Mistry

Answer 1

我自己找到解决方案。希望这会帮助某人。这是解决方案。

///I created an enum for list of metrics that facebook is providing 
public enum FacebookMatricType 
{ 
     page_active_users, 
     page_active_users_locale 
} 

//Created a list of Facebook batch request for each metric using LINQ to Object and //concatenate string using string.format method. 

var batchParameters = (from FacebookMatricType matricType in Enum.GetValues(typeof (FacebookMatricType)) 
            select new object[] 
               { 
               pPageAccessToken,"insights",matricType.ToString(),pFromDate.Date.ToString("yyyy-MM-dd"),pPageId 
               } 
            into objectParamter 
            select new FacebookBatchParameter 
               { 
                HttpMethod = HttpMethod.Get, 
                Path = 
                 string.Format(
                  "https://graph.facebook.com/{0}/{1}/{2}?since={3}&access_token={4}", 
                  objectParamter) 
               }).ToList(); 

//Once I get the list of request I execute it using facebook web client using C# SDK. 

var facebookClient = new FacebookClient(pProfileAccessToken); 
var results = facebookClient.Batch(batchParameters.ToArray()); 
//Results are ready to deserialize. 

谢谢。 ;） Dharmendra Mistry