System requirements

generate tiny url based on user inputs
1. user inputs a original url
2. check for existing url
3. i. return existing url, return;
4. ii. there is no existing url, send request to url generation service
5. generate short code
6. store generated shorten url and original url to database
7. if success, return shorted url
use tiny url and redirect to the page
1. query the tiny url in the database
2. if exists redirect to original url
3. if not return error
Expiration: Option to set an expiration date for the shortened URLs.
Bulk URL Shortening: Allow users to shorten multiple URLs at once.