navigator push

covas_mobile/lib/main.dart

@@ -1,6 +1,10 @@
 import 'package:flutter/material.dart';
 import 'MyHomePage.dart';
 
+import 'package:http/http.dart' as http;
+import 'dart:convert';
+import 'dart:io';
+
 void main() {
   runApp(MyApp());
 }
@@ -21,6 +25,21 @@ class LoginDemo extends StatefulWidget {
 }
 
 class _LoginDemoState extends State<LoginDemo> {
+  Future<void> _login() async {
+    var url = Uri.parse("http://localhost:8083/api/token");
+    String credentials = "peter93:toto";
+    Codec<String, String> stringToBase64 = utf8.fuse(base64);
+    String encoded = stringToBase64.encode(credentials);
+    var response = await http.get(url, headers: {
+      HttpHeaders.authorizationHeader: 'Basic $encoded',
+    });
+
+    if ((response.statusCode == 200) || (response.statusCode == 201)) {
+      Navigator.push(context,
+          MaterialPageRoute(builder: (_) => MyHomePage(title: 'Flutter Demo')));
+    }
+  }
+
   @override
   Widget build(BuildContext context) {
     return Scaffold(
@@ -81,10 +100,7 @@ class _LoginDemoState extends State<LoginDemo> {
                   color: Colors.blue, borderRadius: BorderRadius.circular(20)),
               child: FlatButton(
                 onPressed: () {
-                  Navigator.push(
+                  _login();
-                      context,
-                      MaterialPageRoute(
-                          builder: (_) => MyHomePage(title: 'Flutter Demo')));
                 },
                 child: Text(
                   'Login',