Requirements

Functional Requirements:

• Create a short URL for a given long URL.
• Return the long URL associated with a given short URL.
• Logged In user can see all their converted urls
• recently converted urls should be visible on the home page for both logged in and anonymous users
• redirect a short url to the original long url

Non-Functional Requirements:

• scalability
• low latency

API Design

auth APIs

• /register
• /login
• /logout

service APIs

• /short //create a short url
• /url/<short_url> //redirect

user APIs

• /urls //get all user converted urls

High-Level Design

Describe the overall system architecture. Identify the main components needed to solve the problem end-to-end. Use the diagramming tool to create a block diagram.

Detailed Component Design

Use flask for backend and flask-jinja template for frontend

for login we will use flask session based login-manager

For persistent data we will use Postresql to store User data as well as urls converted

for latency we can use redis to cache the frequent urls