Learn to implement OAuth authorization in ASP.NET Core using .NET 7 Minimal APIs and C#. Explore cookie authentication, set up a YouTube client, and create authorization policies for integration endpoints. Configure OAuth, handle redirects, manage scopes, and enhance sign-in sessions. Discover techniques for loading specific authentication sessions, adding claims to cookies, consuming tokens, and implementing ClaimsTransformation for token loading. Follow along with practical examples and gain hands-on experience in authorizing users to access external APIs, such as YouTube, using OAuth in ASP.NET Core applications.