How does a link shortener work?

Question

JavaScript

You need to write your own link shortener like goo.gl .
The link looks like this:

https://boggle.space/url
?edge=10
&letters="т","о","с","т","е","р","г","р","т","н","о","в","ь","ю","с","ш","о","т","о","а","з","н","о","н","ы","м","к","л","ш","и","л","л","р","г","м","н","я","н","н","а","у","о","о","г","н","е","л","е","о","б","д","т","е","и","п","о","с","т","о","о","с","и","в","л","г","ж","к","и","е","н","п","ц","к","и","о","м","л","л","а","а","а","й","с","о","а","а","у","а","а","л","д","х","а","ь","б","ж","у","в","е","о"]
&userwordsids=

I ask you to outline the basic scheme of the link shortener operation
(I considered the API - it doesn’t fit, you need your own).
I would also like to know which tools are preferable to use in conjunction with nodejs to store the corresponding links.
Thanks to.

Answer 1

It's simple:
- We generate a unique ID for the link
- We save this ID in the database along with the link
- When someone requests http://yoursite.ru/[ID] we get the link from the database that is tied to this ID and redirect.

Answer 2

Principal diagram:

1. Create a urls table with two columns - short and full .
   
2. Генерируете короткие адреса по любому алгоритму. Да хоть ID строки используйте, хоть таймстамп, хоть UUID - что угодно. Вряд ли для ваших целей критично, поместится ли ссылка в Твит.
   
3. Всё.
   

Answer 3

Берете урл. По нему md5 и затем base64
Записываете в базу получившееся значение и url.
Итог: http://<ваш домен>/<получившийся base64>
Если идет обращение, то по части ищете в базе и возвращаете редирект на url сохраненый в базе