Requirements

Functional Requirements:

1. User input a long url for the system to shorten
2. System must return the shorter url
3. System must store the relation of a tiny url to the long url

Non-Functional Requirements:

1. Shortening must happen in less than 5 seconds
2. Redirecting time must be 50-100ms max
3. URLs shouldnt be stored
4. A user can shorten max 100 urls in 1 hr
5. System must block for 5 minutes if a user sends 100+ petitions in a minute
6. All tiny url must be unique
7. Sistem must be available 99.9%
8. System must be able to scale horizontally

Capacity Estimation

1,000 users a day

API Design

{

long_url: ""

}

{

short_url:""

}

High-Level Design

Only the system, there are no extern services.

Database Design

URL: longURL, shortURL

Detailed Component Design

The frontend component recieves the interactions with the client, it sends the petition to the server wich shortens it.