GET http://localhost:8000/sl
GET http://localhost:8000/health_check
POST http://localhost:8000/subscriptions
Content-Type: application/x-www-form-urlencoded
'email=thomas_mann@hotmail.com&name=Tom'
curl -i -H Content-Type\:\ application/x-www-form-urlencoded -XPOST \
http://localhost:8000/subscriptions -d \
'email=thomas_mann13@hotmail.com&name=Tom'