How does the OAuth2 strategy work with Passport.js?
The OAuth2 strategy in Passport.js allows you to authenticate users using third-party services like Google or Facebook. It handles redirects to the service for login and then back to your application.
What are the steps to set it up?
First, you need to install the necessary packages, configure your OAuth2 credentials, and then set up the strategy in your Passport configuration.
Can you explain the redirect process?
Sure! When a user wants to log in, they are redirected to the OAuth provider's login page. After successful authentication, the provider redirects them back to your app with a token.
What if the user denies access?
If the user denies access, the OAuth provider will redirect them back to your app with an error message, which you can handle in your application.
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