Enterprise Application Architecture with .NET Core

Enabling Facebook middleware

ASP.NET Core comes up with some out-of-the-box external authentication middleware to authenticate users from Facebook, Twitter, Microsoft account, and Google. To implement Facebook authentication, we have to add a NuGet package--MicrosoftAspNetCore.Authentication.Facebook

Then, add the following code snippet to the Configure method of the Startup class:

    app.UseFacebookAuthentication(new FacebookOptions()     {         AppId = Configuration["your_app_id"],           AppSecret = Configuration["your_app_secret"]     });

In the preceding code snippet, we are setting the Facebook App ID and Facebook Secret Key using the FacebookOptions object.

Now, when you run your application, it will show the Facebook button, as shown in the following ...