Build a user management functionality for a web application. You must be able to cover the below functionalities:
1: create a new user on Signup with a unique user id which will be the primary key. This user id should bot be their email or any other personal details.
2: Delete a specific user.
3: Update the email-id of the user.
4: Get information of a specific user using their unique user id.
5: Get all the users living in Dan Francisco.
6. Update the password of a specific user using their unique user id.
7: Get all users that have logged in at least once since this week.
Note: A user would have the following details:
- First name
- Last name
- Emial id
- Phone number
- Location
a) Write API endpoints for each of the following functionalities in the given blanks. You are free to use your own conventions. For example: GET .../api name?[parameters
b) What mechanisms would you put in place to prevent denial-of-service attack?