Get API status

android/app/src/main/AndroidManifest.xml

@@ -38,4 +38,5 @@
             android:name="flutterEmbedding"
             android:value="2" />
     </application>
+    <uses-permission android:name="android.permission.INTERNET"/>
 </manifest>

android/gradle.properties

 org.gradle.jvmargs=-Xmx1536M
 android.useAndroidX=true
 android.enableJetifier=true
-app.versionName=0.0.5
-app.versionCode=5
+app.versionName=0.0.6
+app.versionCode=6

fastlane/metadata/android/en-US/changelogs/6.txt

+Get and display API status

fastlane/metadata/android/fr-FR/changelogs/6.txt

+Récupère et affiche le statut de l'API

lib/provider/data.dart

@@ -4,11 +4,14 @@ import 'package:shared_preferences/shared_preferences.dart';
 class Data extends ChangeNotifier {
 
   // Application settings
-  String _apiurl = '';
+  String _apiHost = '';
+  String _apiStatus = '';
+
+  String defaultApiHost = '127.0.0.1';
 
   getParameterValue(String parameterCode) {
     switch(parameterCode) {
-      case 'apiurl': { return _apiurl; }
+      case 'apiHost': { return _apiHost; }
       break;
     }
   }
@@ -16,7 +19,7 @@ class Data extends ChangeNotifier {
   setParameterValue(String parameterCode, String parameterValue) async {
     print('set parameter "' + parameterCode + '" to value "' + parameterValue + '"');
     switch(parameterCode) {
-      case 'apiurl': { updateApiUrl(parameterValue); }
+      case 'apiHost': { updateApiHost(parameterValue); }
       break;
     }
     final prefs = await SharedPreferences.getInstance();
@@ -25,12 +28,19 @@ class Data extends ChangeNotifier {
 
   void initParametersValues() async {
     final prefs = await SharedPreferences.getInstance();
-    setParameterValue('apiurl', prefs.getString('apiurl') ?? 'http://127.0.0.1/plotter');
+    setParameterValue('apiHost', prefs.getString('apiHost') ?? this.defaultApiHost);
+  }
+
+  String get apiHost => _apiHost;
+  void updateApiHost(String apiHost) {
+    _apiHost = apiHost;
+    notifyListeners();
   }
 
-  String get apiurl => _apiurl;
-  void updateApiUrl(String apiurl) {
-    _apiurl = apiurl;
+  String get apiStatus => _apiStatus;
+  void updateApiStatus(String apiStatus) {
+    print('new API status: ' + apiStatus);
+    _apiStatus = apiStatus;
     notifyListeners();
   }
 }

lib/screens/home.dart

@@ -3,6 +3,7 @@ import 'package:provider/provider.dart';
 
 import '../provider/data.dart';
 import '../screens/settings.dart';
+import '../utils/api.dart';
 
 class Home extends StatefulWidget {
   static const String id = 'home';
@@ -49,7 +50,17 @@ class _HomeState extends State<Home> {
       ),
       body: SafeArea(
         child: Center(
-          child: Text('🤖')
+          child: Column(
+            children: [
+              FlatButton(
+                child: Container(
+                  child: Text('get API status'),
+                ),
+                onPressed: () => Api.updateApiStatus(myProvider),
+              ),
+              Text(myProvider.apiStatus)
+            ],
+          )
         ),
       )
     );

lib/screens/settings.dart

@@ -12,11 +12,11 @@ class SettingsPage extends StatefulWidget {
 }
 
 class _SettingsPageState extends State<SettingsPage> {
-  TextEditingController apiUrlFieldController = TextEditingController();
+  TextEditingController apiHostFieldController = TextEditingController();
 
   @override
   void dispose() {
-    apiUrlFieldController.dispose();
+    apiHostFieldController.dispose();
     super.dispose();
   }
 
@@ -24,7 +24,7 @@ class _SettingsPageState extends State<SettingsPage> {
   Widget build(BuildContext context) {
     Data myProvider = Provider.of<Data>(context);
 
-    apiUrlFieldController.text  = myProvider.getParameterValue('apiurl');
+    apiHostFieldController.text  = myProvider.getParameterValue('apiHost');
 
     return Scaffold(
       appBar: AppBar(
@@ -34,7 +34,7 @@ class _SettingsPageState extends State<SettingsPage> {
           IconButton(
             icon: Icon(Icons.save),
             onPressed: () {
-              myProvider.setParameterValue('apiurl', apiUrlFieldController.text);
+              myProvider.setParameterValue('apiHost', apiHostFieldController.text);
               Navigator.pop(context);
             },
           )
@@ -49,10 +49,10 @@ class _SettingsPageState extends State<SettingsPage> {
       body: Padding(
         padding: const EdgeInsets.all(16.0),
         child: TextFormField(
-          controller: apiUrlFieldController,
+          controller: apiHostFieldController,
           decoration: InputDecoration(
             border: UnderlineInputBorder(),
-            labelText: 'API URL',
+            labelText: 'API Host',
           ),
         ),
       ),

lib/utils/api.dart

+import 'dart:convert';
+import 'package:http/http.dart' as http;
+
+import '../provider/data.dart';
+
+class Api {
+
+  static Future<void> updateApiStatus(Data myProvider) async {
+    final response = await http.get(
+      Uri.http(
+        myProvider.apiHost,
+        'status'
+      )
+    );
+
+    String responseData = utf8.decode(response.bodyBytes);
+    Map<String, dynamic> status = json.decode(responseData);
+
+    myProvider.updateApiStatus(status['status']);
+  }
+
+}

pubspec.lock

@@ -79,6 +79,20 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  http:
+    dependency: "direct main"
+    description:
+      name: http
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.13.4"
+  http_parser:
+    dependency: transitive
+    description:
+      name: http_parser
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "4.0.0"
   js:
     dependency: transitive
     description:

pubspec.yaml

@@ -11,6 +11,7 @@ dependencies:
     sdk: flutter
   provider: ^6.0.2
   shared_preferences: ^2.0.6
+  http:
 
 dev_dependencies:
   flutter_test: