DotNetOpenAuth getting Access Token Google Consumer

I modified google consumer to use in my application scenario.

My scenario is to authenticate user on our client's website and then log them into our system. I am able to do the following:

1) Get Request Token 2) Redirect them to the client's site. User enters username and password and they come back to our URL.

After this step I cannot get the access token.

var accessTokenResponse = google.ProcessUserAuthorization(); is always null.

Our client told me that when they return back to us they don't include the verifier and signed request token. I am not sure if that is the reason why I can't get th开发者_开发问答is working.

Can someone please help? I am new to this.

Thanks

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If you're doing authentication then your use of OAuth is probably inappropriate. You should be using OpenID of you're authenticating via Google.

As long as you're using OAuth, yes, the verifier string is mandatory.