Requirements

Functional Requirements:

• The user will see a textbox to input URL
• The input should validate if the URL syntax is correct
• A button to generate short url
• Optionally can provide option to give customer url with validation

Non-Functional Requirements:

• Can suggest if the URL is live or not
• The multiple hit should be managed properly

Capacity Estimation

If the daily active user 1Million

The

API Design

/generate API to generate short version of url

It should be post call with payload as

{

"url": "https://example.com",

"customName": "example" //this could be optional

}

response should be:

{

shortendUrl: "https://abc.io/short"

}

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.

Database Design

A SQL would be better option as only text is involved.

A table with three column one is id, original url and shortend url

Detailed Component Design

A microservice can be created and when post api call happens we can generate a random url if customName is empty and return it immediately and can do the db persisting later