Use ping endpoint for checking internet access

Author: epou

lib/main.dart

@@ -1,5 +1,6 @@
 import 'dart:async';
 
+import 'package:dio/dio.dart';
 import 'package:internet_connection_checker_plus/internet_connection_checker_plus.dart';
 import 'package:firebase_core/firebase_core.dart';
 import 'package:flutter/material.dart';
@@ -106,10 +107,25 @@ Future<void> main({String env = 'prod'}) async {
 
   // Auto-sync when online
   final apiConnection = InternetConnection.createInstance(
+    useDefaultOptions: false,
+    enableStrictCheck: true,
     customCheckOptions: [
-      // TODO: use /ping endpoint.
+      // NOTE: this is dummy, all the logic is in customConnectivityCheck
       InternetCheckOption(uri: Uri.parse(apiClient.dio.options.baseUrl)),
     ],
+    customConnectivityCheck: (option) async {
+      try {
+        final pingApi = apiClient.getPingApi();
+        final response = await pingApi.retrieve();
+
+        return InternetCheckResult(
+          option: option,
+          isSuccess: response.statusCode == 204,
+        );
+      } catch (_) {
+        return InternetCheckResult(option: option, isSuccess: false);
+      }
+    },
   );
   apiConnection.onStatusChange.listen((status) async {
     if (status == InternetStatus.connected) {

pubspec.lock

@@ -1176,11 +1176,11 @@ packages:
     dependency: "direct main"
     description:
       path: "."
-      ref: "0.1.30"
-      resolved-ref: b45c55a48ae33d1017b11a2ded97c16076f9503c
+      ref: "0.1.31"
+      resolved-ref: ea50f7595e66d86b9eb82b0d7ab1e15dc8cc850a
       url: "https://github.com/Mosquito-Alert/mosquito-alert-dart-sdk.git"
     source: git
-    version: "0.1.30"
+    version: "0.1.31"
   nested:
     dependency: transitive
     description:

pubspec.yaml

@@ -54,7 +54,7 @@ dependencies:
   mosquito_alert:
     git:
       url: https://github.com/Mosquito-Alert/mosquito-alert-dart-sdk.git
-      ref: 0.1.30
+      ref: 0.1.31
   flutter_secure_storage: ^9.2.4
   infinite_scroll_pagination: ^5.1.0
   provider: ^6.1.5