Facebook access token error validating application

Posted by / 04-Sep-2020 17:32

Mit einem vom SDK zurückgegebenen Zugriffsschlüssel kannst du die Identität eines Nutzers serverseitig überprüfen, wenn du Anfragen für deine App verarbeitest.Account Kit-Zugriffsschlüssel sind nicht mit dem Feature für automatische Sicherung aus Android 6.0, Marshmallow, kompatibel, da der gesicherte Zugriffsschlüssel möglicherweise nicht mehr gültig ist.Wenn dieser Schalter aktiviert ist, erhält deine Client-App (nach der erfolgreichen Anmeldung) direkt einen langlebigen Zugriffsschlüssel, der dann sicher für die Nutzung in API-Aufrufen an deinen Server übergeben werden muss.Wenn der Schalter Client Access Token Flow aktivieren ausgeschaltet ist, erhält deine Client-App (nach der erfolgreichen Anmeldung) einen kurzlebigen Autorisierungscode, der dann sicher an deinen Server übergeben werden muss.Make the tweak to fit to yours if you are using other type of application.Also, I have tested the application on my local visual studio server, for which i am using local host as my application domain, you should change that to your domain.) var settings = Configuration Manager.Then, user will have to allow your application for the usage, what will give you the access to his private data, access token is the key to that door.Here I am going to make use of my two custom class, one is MYWeb Request, that I have discussed before while showing way of creating http request using c sharp; Another is My FB, a simple class that utilizes Facebook C# API library and meet my custom needs 🙂 You can get the code snippet of My Web Request class from the related post linked above, and here is the code sample for the My FB class, which you can also use by enhancing/extending for your custom needs: To allow access, Facebook requires that you redirect the user to the Facebook page(given of Facebook API documentation) where user is asked to allow his private information access to the application.

= null) // View Data["Api Key"] = Configuration Manager.

Beachte, dass das JS-SDK für das Basic Web nur die Authentifizierung mit Autorisierungscode unterstützt.

Dein App-Dashboard enthält den Schalter Client Access Token Flow aktivieren.

First we are checking the for the ‘code’ variable value from the uri string as after returning from Facebook authentication, it redirects to our given URL with added the code as part of the URL.

Initially, when application started to launch its empty, so ‘code’ value will be null and the if condition will become true, and then application will redirect the user to the Facebook oauth URL for permission to grant access.

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After user accepts and allows the application to access private data, application will redirect including the code value, this time that value will be valid non null and else block will be executed.

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