擴展Facebook的頁面訪問令牌

Question

我需要延長我的facebook訪問令牌，我打電話這樣的：

https://graph.facebook.com/oauth/access_token? 
client_id={MY PAGE ID}& 
client_secret={THE SECRET KEY OF MY APP}& 
grant_type=fb_exchange_token& 
fb_exchange_token={AN ACCESS TOKEN FOR MY PAGE} 

，我得到這個錯誤：

"error": { 
     "message": "Error validating application. Cannot get application info due to a system error.", 
     "type": "OAuthException", 
     "code": 101 
    } 

我見過很多與access_token有關的問題，但沒有回答相對於頁面，idk爲什麼facebook使用api，爲什麼......但是這樣...

謝謝

Answer 1

要獲得長期的訪問令牌，你需要遵循這些步驟：

1. 創建應用程序
2. 創建專頁（您的帳戶必須是「管理員」頁面）

3. 將應用程序關聯到頁面（與將頁面標籤頁添加到頁面時相同）

   http://facebook.com/add.php?api_key=*YOUR_APP_ID*&pages=1&page=*YOUR_PAGE_ID* 
   

4. 獲取具有與您的應用程序關聯的權限「manage_pages」的短期訪問令牌。

   https://graph.facebook.com/oauth/authorize?client_id=__APP_ID__&scope=manage_pages&redirect_uri=http://www.facebook.com/connect/login_success.html 
   then 
   https://graph.facebook.com/oauth/access_token?client_id=__APP_ID__&redirect_uri=http://www.facebook.com/connect/login_success.html&client_secret=__APP_SECRET__&code=__CODE_FROM_PREVIOUS_REQUEST__ 
   

5. 使用圖形API瀏覽器與/me/accounts可以看到訪問令牌，你是管理員爲每個頁面的請求。問題在於那些訪問令牌是短暫的。

6. 將您短暫的訪問令牌長壽命（延長訪問令牌）：

   https://graph.facebook.com/oauth/access_token?client_id=_APP_ID_&client_secret=_APP_SECRET_&grant_type=fb_exchange_token&fb_exchange_token=_ACCESS_TOKEN_ON_STEP_4_ 
   

7. 您現在可以測試與Access Token Debugger新的訪問令牌。

Answer 2

Scenario 5: Page Access Tokens

When a user grants an app the manage_pages permission, the app is able to obtain page access tokens for pages that the user administers by querying the [User ID]/accounts Graph API endpoint. With the migration enabled, when using a short-lived user access token to query this endpoint, the page access tokens obtained are short-lived as well.

Exchange the short-lived user access token for a long-lived access token using the endpoint and steps explained earlier. By using a long-lived user access token, querying the [User ID]/accounts endpoint will now provide page access tokens that do not expire for pages that a user manages. This will also apply when querying with a non-expiring user access token obtained through the deprecated offline_access permission.

https://developers.facebook.com/roadmap/offline-access-removal/

Answer 3

下面是關於讓「擴展頁面訪問令牌」，這是永遠有效（不只是60天）的信息： http://www.devils-heaven.com/facebook-access-tokens/