All Questions
2,194
questions
1
vote
2
answers
5k
views
How to resolve (OAuthException - #190) Error validating access token: This may be because the user logged out or may be due to a system error
I am trying to post on my Facebook fan page using Facebook Graph API. To do this I am using extended Page access token. I was able to post my contents on Facebook, but the moment I logged out from ...
- 28.1k
0
votes
0
answers
21
views
Facebook API: You couldn't create the client business on behalf your client successfully
This is my c# project. I was trying to create an API to allow user to add their business into my Business Facebook Partner. Below is my code which how to add into my Facebook Business Partner. When i ...
0
votes
2
answers
1k
views
How come I suddenly start receiving OAuthException when posting to facebook page using facebook c# SDK
Thanks for the help.
I am having some troubles posting a link to a facebook page. It gets called from a MVC website running an Umbraco installation. To post I am using the official facebook SDK for ...
0
votes
0
answers
22
views
ASP.NET MCV 5 Facebook login AuthenticationManager.GetExternalLoginInfoAsync returning null
I am implementing Facebook login to a MCV 5 project.
I am able to login successfully to facebook and call to
public async Task<ActionResult> ExternalLoginCallback(string returnUrl)
but the ...
- 76
2
votes
1
answer
2k
views
The session is invalid because the user logged out
I have a situation here and I'm still cracking my head on how to solve it.
Here's the scenario:
User visits my web site
User clicks on Login to Facebook (in order for my App to retrieve their ...
- 5,837
0
votes
2
answers
3k
views
How can I implement the Facebook Ads API with C#? [closed]
I've been searching for an answer for a while, but I couldn't find any relevant libraries\documentation for C# implementation of the Facebook Ads API. I've checked Facebook's developers portal of ...
- 5,837
0
votes
1
answer
60
views
Using Facebook as an external authentication provider for ASP.NET fails when running in Azure
I'm building a ASP.NET Core Web App (Razor Pages) application and I am trying to add external authentican providers. I have succesfully added the Microsoft provider, and am working on the Facebook ...
- 1,526
6
votes
1
answer
9k
views
Missing Required Property: The og:url property is required, but not present
I'm trying to create a simple page with like button inside in my facebook app
when i test my page on the facebook debugger, i got this messages:
Missing Required Property: The og:url property is ...
CommunityBot
- 1
0
votes
1
answer
187
views
Whatsapp Webhook callback error. The callback URL or verify token couldn't be validated. Please verify the provided information or try again later
While configuring webhook callback URL getting error "The callback URL or verify token couldn't be validated. Please verify the provided information or try again later."
please assist.
In ...
- 320
2
votes
1
answer
18k
views
How to send and Receive messages using Facebook Messenger API
i am using C# library for FB Messenger API here - https://www.nuget.org/packages/facebook-messenger-net-lib/
But i think there is lack of some documentation . i am trying below code to send message ...
CommunityBot
- 1
0
votes
4
answers
2k
views
Invalid App The app you are trying to use does not exist or has been disabled. Facebook
I'm getting this message when I'm trying to authenticate user with facebook account. Here is the library I'm using Facebook C# SDK. The interesting thing it's not for each user on facebook. For some ...
1
vote
1
answer
2k
views
facebook Graph API Send post using asp.net and c# is not working
I want to send post through asp.net and c# to my facebook account,i tried multiple things but unable to understand why it is giving me error, can any one guide me?
My App Details
private const string ...
- 2,367
0
votes
0
answers
26
views
Post in facebook with APIGRAPH
I'm trying to make a post on Facebook, using the Graph API, with country restriction.
but I have an error with the location_types field, I am attaching an image of my query in postman.
(https://i....
0
votes
0
answers
144
views
How to access facebook profile picture
I'm trying to access the user profile picture using facebook API and it was working fine until last month. here is my code:
var fbVerifyKeys = _config["Facebook:AppId"] + "|" + ...
- 25
1
vote
1
answer
727
views
Facebook webhook signature calculation failing
I am developing an application that uses Facebook Webhooks to receive payload from Facebook. For each call, Facebook provides a signature that I need to validate to ensure the payload's integrity and ...
- 43