Marketing API Export Async Report ads_insights V2.5 - facebook

Question

I have problems to export Report of ad's statistics since code written in.NET Framework when I use ads_insights (version 2.5). Before when I used reportstats with version 2.3 I could download the report succesfully
My request is //www.facebook.com/ads/ads_insights/export_report?report_run_id=0000000&format=xls&access_token=token
When I execute the request in browser I can download the report succesfully (file xls completed), but when I execute the request since by code .NET Framework (C#) I download the file .xls incomplete [enter image description here][2]
The tasks to get report are (using code .NET C#)
1º request with method POST
graph.facebook.com/v2.5/act_countNumbrer/insights?level=ad&time_range=%7B%27since%27%3A%272015-11-02%27%2C%27until%27%3A%272015-11-02%27%7D&actions_group_by=%5B%27action_type%27%5D&fields=campaign_name%2Cad_name%2Cad_id%2Creach%2Cfrequency%2Cimpressions%2Ccpm%2Ccpp%2Cspend%2Csocial_clicks%2Cunique_clicks%2Cctr%2Cunique_ctr%2Caccount_name%2Cactions%2Ctotal_actions%2Cwebsite_clicks&time_increment=1&access_token=token
Result: successful -> I get a report_run_id
2º request with method GET
graph.facebook.com/v2.5/id_report&access_token=token
Result: successful -> I get a
{
"id": "xxxx",
"account_id": "xxx",
"time_ref": 1447171267,
"time_completed": 1447171269,
"async_status": "Job Completed",
"async_percent_completion": 100,
}
3º when "async_status" is "Job Completed", I execute request
www.facebook.com/ads/ads_insights/export_report?report_run_id=xxxx&format=xls&access_token=token
Result: I download the file .xls incomplete. If you paste the query (URL) in browser you download the report succesful (file xls completed) enter image description here
If I execute the request with code .NET Framework (C#) and saved the response as string the response said we "should update your browser " enter image description here
Why can't I download the report ?
Thank you
Code using to execute the download the report XLS
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Threading.Tasks;
using System.Xml;
namespace test
{
class Program
{
static void Main(string[] args)
{
string token="token";
string report_run_id="report_number";
string url = "https://www.facebook.com/ads/ads_insights/export_report?report_run_id="+report_run_id+"format=xls&access_token"+token;
//option 1
string reportDownloadUrl = "repo"+DateTime.Now.Ticks + ".xls"; ;
Stream responseStream = null;
try
{
var request = (HttpWebRequest)WebRequest.Create(url);
request.Method = "GET";
//request.UserAgent = "Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.2; WOW64; Trident/6.0)";
var response = (HttpWebResponse)request.GetResponse();
responseStream = response.GetResponseStream(); //relleno el flujo
using (var fileStream = new FileStream(reportDownloadUrl, FileMode.Create, FileAccess.Write))
{
responseStream.CopyTo(fileStream);
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
finally
{
if (responseStream != null) responseStream.Close();
}
Console.WriteLine("File Download" +reportDownloadUrl);
/* //option 2
using (WebClient wc = new WebClient())
{
wc.Headers[HttpRequestHeader.ContentType] = "application/x-www-form-urlencoded";
wc.Headers["User-Agent"] = "Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.2; WOW64; Trident/6.0)";
wc.DownloadFile(url,"repo.xls");
}
Console.WriteLine("File Download");
*/
Console.ReadKey();
}
}
}

Answer 1

I had the same issue, trying to download the report using request npm in
nodejs.
Adding the User-Agent header solved my problem.

Answer 2

This works for me. You have some issues in your URL string.
Here is an updated url string:
string url = "https://www.facebook.com/ads/ads_insights/export_report?report_run_id=" + report_id + "&format=csv&access_token=" + accessToken;
This method works.
using (WebClient wc = new WebClient())
{
wc.Headers[HttpRequestHeader.ContentType] = "application/x-www-form-urlencoded";
wc.Headers["User-Agent"] = "Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.2; WOW64; Trident/6.0)";
wc.DownloadFile(url, "page1.csv");
}
The report gets saved to:
C:\your\path\to\project\FacebookReportPuller\bin\Debug