Запрос по почте
Map<String, String> body = {
'name': 'doodle',
'color': 'blue',
'homeTeam': json.encode(
{'team': 'Team A'},
),
'awayTeam': json.encode(
{'team': 'Team B'},
),
};
Response r = await post(
url,
body: body,
);
Grumpy Gorilla