facebook Graph API 使用 asp.net 发送 post 并且 c# 不工作
facebook Graph API Send post using asp.net and c# is not working
我想通过 asp.net 和 c# 将 post 发送到我的 facebook 帐户,我尝试了多种方法但无法理解为什么它会给我错误,任何人都可以指导我吗?
我的应用详情
private const string FacebookApiId = "XXXXXX";
private const string FacebookApiSecret = "XXXXXX";
private const string AuthenticationUrlFormat =
"https://graph.facebook.com/oauth/access_token?client_id={0}&client_secret={1}&grant_type=client_credentials&scope=manage_pages,offline_access,publish_stream
我的控制器
public ActionResult Index()
{
string accessToken = GetAccessToken(FacebookApiId, FacebookApiSecret);
PostMessage(accessToken, "My message");
return View();
}
我的Api详情
static void PostMessage(string accessToken, string message)
{
try
{
FacebookClient facebookClient = new FacebookClient(accessToken);
dynamic messagePost = new ExpandoObject();
messagePost.access_token = accessToken;
messagePost.message = message;
var result = facebookClient.Post("/798252384337611/feed", messagePost);
}
catch (FacebookOAuthException ex)
{
string error = ex.Message.ToString();
}
catch (Exception ex)
{
string error1 = ex.Message.ToString();
}
}
static string GetAccessToken(string apiId, string apiSecret)
{
string accessToken = string.Empty;
string url = string.Format(AuthenticationUrlFormat, apiId, apiSecret);
WebRequest request = WebRequest.Create(url);
WebResponse response = request.GetResponse();
using (Stream responseStream = response.GetResponseStream())
{
StreamReader reader = new StreamReader(responseStream, Encoding.UTF8);
String responseString = reader.ReadToEnd();
Fbresponse rs = Newtonsoft.Json.JsonConvert.DeserializeObject<Fbresponse>(responseString);
accessToken = rs.access_token;
}
if (accessToken.Trim().Length == 0)
throw new Exception("There is no Access Token");
return accessToken;
}
我的尝试
1 - var result = facebookClient.Post("/me/feed", messagePost);
错误
(OAuthException - #2500) 必须使用活动访问令牌来查询有关当前用户的信息。
2 - var result = facebookClient.Post("/rashid.khi.31/feed", messagePost);
错误
(OAuthException - #803) (#803) 无法通过用户名查询用户 (rashid.khi.31)
作为我在 google 上的 RND,然后我在 https://findmyfbid.in/
上从 fb 用户名获得了 fb 用户 ID
3 - var result = facebookClient.Post("/100055422049992/feed", messagePost);
错误
(OAuthException - #100) (#100) 此调用不允许全局 ID 100055422049992
请帮我看看我的代码有什么问题,我知道,我发错了user_id,但我不知道从哪里可以得到正确的 ID?
只是一个简短的说明 - 你想出的代码很旧。 offline_access
几年前删除了权限。所以我建议你在谷歌上多搜索一下如何创建令牌。也许您的令牌根本无效。我发现这个 link: https://ermir.net/topic-10/how-to-publish-a-message-to-a-facebook-page-using-a-dotnet-console-application - 它展示了如何从 FB 调试页面获取永久令牌,然后如何将它用于 post 页面(看起来与您的代码相似) :
public class FacebookApi
{
private readonly string FB_PAGE_ID;
private readonly string FB_ACCESS_TOKEN;
private const string FB_BASE_ADDRESS = "https://graph.facebook.com/";
public FacebookApi(string pageId, string accessToken)
{
FB_PAGE_ID = pageId;
FB_ACCESS_TOKEN = accessToken;
}
public async Task<string> PublishMessage(string message)
{
using (var httpClient = new HttpClient())
{
httpClient.BaseAddress = new Uri(FB_BASE_ADDRESS);
var parametters = new Dictionary<string, string>
{
{ "access_token", FB_ACCESS_TOKEN },
{ "message", message }
};
var encodedContent = new FormUrlEncodedContent(parametters);
var result = await httpClient.PostAsync($"{FB_PAGE_ID}/feed", encodedContent);
var msg = result.EnsureSuccessStatusCode();
return await msg.Content.ReadAsStringAsync();
}
}
}
所以先尝试从 FB 调试页面硬编码令牌,看看是否可以发布。然后努力从您的应用程序内部获取 short-lived 令牌 - 但这需要用户能够与 Facebook 进行通信 - 以允许您的应用程序与他们的页面进行通信。有道理吗?
我想通过 asp.net 和 c# 将 post 发送到我的 facebook 帐户,我尝试了多种方法但无法理解为什么它会给我错误,任何人都可以指导我吗?
我的应用详情
private const string FacebookApiId = "XXXXXX";
private const string FacebookApiSecret = "XXXXXX";
private const string AuthenticationUrlFormat =
"https://graph.facebook.com/oauth/access_token?client_id={0}&client_secret={1}&grant_type=client_credentials&scope=manage_pages,offline_access,publish_stream
我的控制器
public ActionResult Index()
{
string accessToken = GetAccessToken(FacebookApiId, FacebookApiSecret);
PostMessage(accessToken, "My message");
return View();
}
我的Api详情
static void PostMessage(string accessToken, string message)
{
try
{
FacebookClient facebookClient = new FacebookClient(accessToken);
dynamic messagePost = new ExpandoObject();
messagePost.access_token = accessToken;
messagePost.message = message;
var result = facebookClient.Post("/798252384337611/feed", messagePost);
}
catch (FacebookOAuthException ex)
{
string error = ex.Message.ToString();
}
catch (Exception ex)
{
string error1 = ex.Message.ToString();
}
}
static string GetAccessToken(string apiId, string apiSecret)
{
string accessToken = string.Empty;
string url = string.Format(AuthenticationUrlFormat, apiId, apiSecret);
WebRequest request = WebRequest.Create(url);
WebResponse response = request.GetResponse();
using (Stream responseStream = response.GetResponseStream())
{
StreamReader reader = new StreamReader(responseStream, Encoding.UTF8);
String responseString = reader.ReadToEnd();
Fbresponse rs = Newtonsoft.Json.JsonConvert.DeserializeObject<Fbresponse>(responseString);
accessToken = rs.access_token;
}
if (accessToken.Trim().Length == 0)
throw new Exception("There is no Access Token");
return accessToken;
}
我的尝试
1 - var result = facebookClient.Post("/me/feed", messagePost);
错误
(OAuthException - #2500) 必须使用活动访问令牌来查询有关当前用户的信息。
2 - var result = facebookClient.Post("/rashid.khi.31/feed", messagePost);
错误
(OAuthException - #803) (#803) 无法通过用户名查询用户 (rashid.khi.31)
作为我在 google 上的 RND,然后我在 https://findmyfbid.in/
上从 fb 用户名获得了 fb 用户 ID3 - var result = facebookClient.Post("/100055422049992/feed", messagePost);
错误
(OAuthException - #100) (#100) 此调用不允许全局 ID 100055422049992
请帮我看看我的代码有什么问题,我知道,我发错了user_id,但我不知道从哪里可以得到正确的 ID?
只是一个简短的说明 - 你想出的代码很旧。 offline_access
几年前删除了权限。所以我建议你在谷歌上多搜索一下如何创建令牌。也许您的令牌根本无效。我发现这个 link: https://ermir.net/topic-10/how-to-publish-a-message-to-a-facebook-page-using-a-dotnet-console-application - 它展示了如何从 FB 调试页面获取永久令牌,然后如何将它用于 post 页面(看起来与您的代码相似) :
public class FacebookApi
{
private readonly string FB_PAGE_ID;
private readonly string FB_ACCESS_TOKEN;
private const string FB_BASE_ADDRESS = "https://graph.facebook.com/";
public FacebookApi(string pageId, string accessToken)
{
FB_PAGE_ID = pageId;
FB_ACCESS_TOKEN = accessToken;
}
public async Task<string> PublishMessage(string message)
{
using (var httpClient = new HttpClient())
{
httpClient.BaseAddress = new Uri(FB_BASE_ADDRESS);
var parametters = new Dictionary<string, string>
{
{ "access_token", FB_ACCESS_TOKEN },
{ "message", message }
};
var encodedContent = new FormUrlEncodedContent(parametters);
var result = await httpClient.PostAsync($"{FB_PAGE_ID}/feed", encodedContent);
var msg = result.EnsureSuccessStatusCode();
return await msg.Content.ReadAsStringAsync();
}
}
}
所以先尝试从 FB 调试页面硬编码令牌,看看是否可以发布。然后努力从您的应用程序内部获取 short-lived 令牌 - 但这需要用户能够与 Facebook 进行通信 - 以允许您的应用程序与他们的页面进行通信。有道理吗?