Revisiting REST API Integration in Flutter by using the classic Covid 19 API example.
Course Reference and Credits-: https://www.youtube.com/playlist?list=PLFyjjoCMAPtzgITDreXNNkSWLKbd1wf51
URL-: https://disease.sh/v3/covid-19/
Get World State-: https://disease.sh/v3/covid-19/all
Get Countries List-: https://disease.sh/v3/covid-19/countries