Shopping-List

Created a shopping list app using MongoDB + Express.js, where a user can signup and login to create a shopping list. The user can then add and delete items within the shopping list given the index. If the user is not logged in, all operations should not be allowed.

Routes

Here is a list of routes:

1. User Signup Route: POST http://localhost:4000/user/signup

   1. Request Body (feel free to use your own test data):

   {
       "username": "alexwu",
       "password": "123456"
   }

   2. the response should be a token of the user

2. User Login Route: POST http://localhost:4000/user/login

   1. Request Body

   {
       "username": "alexwu",
       "password": "123456"
   }

   2. the response should be a token of the user

3. Retrieve the current shopping list: GET http://localhost:4000/shop/list

   1. The request should come with a header of token: the_user_token_here
      1. the user token should be the one that you have received through the login / signup routes
      2. if the token is incorrect, return auth error
   2. the response should be a list of items or an empty list

4. Add a new item: POST http://localhost:4000/shop/add

   1. The request should come with a header of token: the_user_token_here
      1. if the token is incorrect, return auth error
   2. Body

   {
       "item": "apple"
   }

   3. the response should be the new list: (if you have already added an "orange")

   ['orange', 'apple'];

5. Delete an item: DELETE http://localhost:4000/shop/delete

   1. The request should come with a header of token: the_user_token_here

      1. if the token is incorrect, return auth error

   2. Body

   {
       "item": "apple"
   }

   3. the response should be a new list