RESTful Web API Design with Node.js (Video 8)

This video tutorial covers setting up an Express JS router to handle Twitter authentication using OAuth. It explains the project file structure, dependencies, and configuration of routes. The tutorial also details how to configure Twitter API keys and callback URLs, implement an authenticator, and test the application. Key concepts include using HTTP cookies for state management and ensuring security against cross-site scripting.

What are the four files mentioned that are used in the application?

Explain the purpose of the cookie parser middleware in the application.

What happens when the user clicks on the sign-in using Twitter button?

How does the application handle errors during authentication?

Describe the process that occurs when authentication is successful.

What is the significance of the callback URL in the Twitter authentication process?

What is the role of the authenticator in the application?