CODEWITHSUNDEEP
asp.netfacebookfacebook-login
Ahmed Shamel
Ahmed Shamel

Reputation: 1962

Can't get email address using Facebook SDK for asp.net

I am using Facebook SDK to get email of user. I write this code in Startup.Auth.css class :

        var x = new FacebookAuthenticationOptions();
        x.Scope.Add("email");
        x.AppId = "421656951358309";
        x.AppSecret = "5a2e5ccf163fe6918b6d6fdc8dda5184";
        x.Provider = new FacebookAuthenticationProvider()
        {
            OnAuthenticated = async context =>
            {

                context.Identity.AddClaim(new System.Security.Claims.Claim("FacebookAccessToken", context.AccessToken));
            }
        };
        x.SignInAsAuthenticationType = DefaultAuthenticationTypes.ExternalCookie;
        app.UseFacebookAuthentication(x);

And in controller, I use two method to get email but both methods fail. Here is the methods :

Method 1 : By default, after executing the first line the variable info has email property. But it always return null.

var info = await AuthenticationManager.GetExternalLoginInfoAsync();
string email = info.Email;

Method 2 : I use the following code, it also return null.

var fb = new FacebookClient(access_token.Value);
dynamic me = fb.Get("email");
string email = me.email;

Did I miss something ? or there is another method that I can use. I can get others information such as username, but for email I can't.

Upvotes: 3

Views: 707

Answers (2)

master student
master student

Reputation: 58

Method 2 should be work with facebook app before version 2.4, but for version 2.4 and I guess it is the version of your app you should edit :

dynamic me = fb.Get("/me?fields=email");

Upvotes: 2

user3002192
user3002192

Reputation: 76

try to modify Method 2 as follow :

var fb = new FacebookClient(access_token.Value);
dynamic me = fb.Get("/me?fields=email");
string email = me.email;

Upvotes: 6

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