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:

List the key non-functional requirements (eg low latency, scalability, reliability, etc.)...

API Design

There will be an post endpoint, which will be used for the following:

• It will be used to get the original url to which we needs to redirect.
• It will return the new shortened url, which will be used by the user to access the original site.

High-Level Design

We will use an SQL database to save the mapping and detail of the original and shortened url.

We will also be using a cache(Redis) for saving the mapping, it will reduce the database call.

Detailed Component Design

Deep dive into 2-3 key components. Explain how they work, how they scale, discuss tradeoffs, capacity, and any relevant algorithms or data structures.