This is a small URL shortner (60 lines of code). It uses leveldb and fiber(based on fasthttp). Why you say? I just wanted to try them out. Anyway, there are only 3 things to do

• add a new shortened url
• get list of entries in db
• visit the shortened url to be redirected to the actual url

go run main.go

curl -X POST 'https://shortie.mridulganga.dev/' \
-H 'Content-Type: application/json' \
-d '{
    "code": "mg",
    "url": "https://mridulganga.dev"
}'

now to access this you can goto https://shortie.mridulganga.dev/mg

curl -X GET https://shortie.junglesucks.com?list=true

oh also, there is no delete feature, you can however overwrite previous entries.

There is a nice Dockerfile which can be used to containerize this, use a volume for urls.db folder to make it persistent.