placesId method
Implementation
Future<Set<String>> placesId(
{required LKAgency agency, int skip = 0, int limit = 1}) async {
final response = await http.get(
Uri.parse(LK.placesApi(agency, skip: skip, limit: limit)),
headers: {'Authorization': 'Bearer ${token.access}'});
final json = jsonDecode(response.body);
if (response.statusCode != 200) throw json['error'];
final places = json['result'];
return Set<String>.from(places);
}