getCountries method
Fetches countries informations.
It returns a list of Covid19CountryBase.
Implementation
Future<List<Covid19CountryBase>> getCountries() async {
var res = await _dio.get('/countries');
var data = res.data;
List<Covid19CountryBase> list = List();
for (var i in data) {
list.add(Covid19CountryBase(
country: i['Country'], slug: i['Slug'], iso2: i['ISO2']));
}
return list;
}