DatumConnectivityChecker class abstract

An abstract interface for checking network connectivity.

This allows the datum library to remain platform-agnostic. The user of the library is responsible for providing a concrete implementation.

Example Implementation for Flutter:

import 'package:connectivity_plus/connectivity_plus.dart';

class MyConnectivityChecker implements ConnectivityChecker {
  final _connectivity = Connectivity();

  @override
  Future<bool> get isConnected async =>
      !(await _connectivity.checkConnectivity()).contains(ConnectivityResult.none);

  @override
  Stream<bool> get onStatusChange => _connectivity.onConnectivityChanged
      .map((results) => !results.contains(ConnectivityResult.none));
}