send method
Implementation
Future<void> send(message) async {
var res = await http.post(
Uri.parse(client.clientConfig.apiUrl + '/channels/$id/messages'),
headers: client._authHeaders,
body: jsonEncode({
'nonce': DateTime.now().millisecondsSinceEpoch.toString(),
'content': message
})
);
if (res.statusCode != 200) throw res.body;
return null;
}