Requirements

Functional Requirements:

• Create a short URL for a given long URL.
• Return the long URL associated with a given short URL.

Non-Functional Requirements:

• Low Latency Using Redis
• Scalable and Focused on Availability over consistency.

API Design

POST -> https://tinyurl.com

Request Body: Original Url

Response: Shortened URL

GET -> https://tinyurl.com/shortnedurl -> redirect to original url

High-Level Design

I have created the high level diagram as you see in Excalidraw.

Detailed Component Design

We are going to use the Loadbalancer to serve request evenly across all the servers. Using distributed Redis Cache for getting the actual Url for the shorten url. And we are using Apache Cassandra for more Availability by specifying consistency to Quoram.