Logging in with Facebook

You request an access token by opening the page. The access token is valid for only two hours. You can update the token in the background without the user having to log in again.

We have reached the last stage of this chapter. This is where we will add the final seasoning. To finally include the login functionality, you need to create a new form to receive a web page with which the user will interact to confirm their identity and to confirm the permissions requested by the application.

Coding login

Before encoding the login, we need to create a new form to display the Facebook authentication Uniform Resource Identifier (URI). By following the next steps alongside the new form, we will finally be able...