‫(light playful music)
‫Welcome back to one of the most important,
‫and also most advanced sections of the entire course.
‫And in this one, you're gonna learn how to implement
‫authentication, authorization, and security.
‫So, authentication and authorization
‫is all about users signing up
‫and logging into or applications
‫and allowing them to access certain protected parts
‫of the app that are not accessible to non-logged in users.
‫So that's really cool,
‫and it makes the app seem even more real world, right?
‫So to implement authentication,
‫we're gonna use a very modern technique
‫called JSON Web Tokens,
‫which are actually perfect for the API that we're building.
‫And now I can't wait to show you how it all works.
‫(light playful music)