Practical GraphQL - Become a GraphQL Ninja - Using Pug as a Templating System with Express and GraphQL

The video tutorial covers extending a static GraphQL instance to include media upload and image management. It begins by explaining the importance of understanding GraphQL mutations for managing images. The tutorial then guides through installing necessary dependencies like Cloudinary, Multer, and Node Fetch. It proceeds to set up the project structure, including creating folders for public and uploads. The video also demonstrates building a frontend using Express and Pug, setting up a view engine, and creating routes. Finally, it shows how to render and test the application in a browser.

How does the application serve the front end built under the public folder?

How does the application handle GraphQL queries to render the index page?

What is the significance of the 'index.pug' file in the application?