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Day 20. Advanced Techniques: E-Commerce ... > The User Authentication System

The User Authentication System

This portion of the application handles registering a user with the system and verifying the username and password when he tries to login. The user authentication system for our catalog will consist of four different pages:

  • register—Collects all the information we need to register a user.

  • duplicate—If the username is invalid, an error message should be displayed and the user given the opportunity to re-register.

  • login—Collects the username and password for a valid user account and tests it.

  • badlogin—If the user's login information is incorrect, they should be given an option to re-enter it.


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