我登录后成功显示了我的令牌,此令牌用于登录后访问产品页面。问题是我的产品页面只能显示带有我拥有的令牌的数据,但我不知道如何保存我的令牌并使用它来显示我的产品数据。我的 api 和 laravel 使用 postman。
我的产品代码只有这样:
产品.dart
class pageSuccess extends StatefulWidget {
@override
State<pageSuccess> createState() => _pageSuccessState();
}
class _pageSuccessState extends State<pageSuccess> {
var data;
//SharedPreferences sharedPreferences = await SharedPreferences.getInstance();
//String token = sharedPreferences.getString(Constants.TOKEN)!;
Future<void> getUserApi() async {
final response =
await http.get(Uri.parse('http://10.0.2.2:8000/api/produk'),
headers:{
'Content-Type': 'text/html; charset=UTF-8',
//'Authorization' : 'Bearer $token',
},
);
var encodeFirst = json.encode(response.body.toString());
data = jsonDecode(encodeFirst.toString());
if (response.statusCode == 200) {
print(data);
print('product success');
} else {
print('product failed');
}
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
centerTitle: true,
title: Text('Api Course'),
),
body: Column(
children: [
Expanded(
child: FutureBuilder(
future: getUserApi(),
builder: (context, snapshot) {
if (snapshot.connectionState == ConnectionState.waiting) {
return Text('Loading');
} else {
return ListView.builder(
itemCount: data.length,
itemBuilder: (context, index) {
return Card(
child: Column(
children: [
ReusbaleRow(
title: 'kode',
value: data[index]['kode'].toString(),
),
ReusbaleRow(
title: 'nama',
value: data[index]['nama'].toString(),
),
ReusbaleRow(
title: 'keterangan',
value: data[index]['keterangan'].toString(),
),
ReusbaleRow(
title: 'harga',
value: data[index]['harga'].toString(),
),
],
),
);
});
}
},
),
)
],
),
);
}
}
我通常怎么做(很多人都以多种方式做)? 用户登录时我得到令牌。因此,我将令牌存储在
shared-preferences
var 中。
我在常量文件中创建了这个方法,以便从任何地方访问。你可以选择把它放在哪里。
Map<String, String> headersWithToken = {
'Content-Type': 'application/json',
'Accept': 'application/json',
'Authorization': 'Bearer $myToken'
};
String? myToken; // I'm changing this value when user success to login
class CurrentUserData {
saveUserData(String userToken) async {
SharedPreferences preferences = await SharedPreferences.getInstance();
preferences.setString('currentUserToken', userToken);
}
}
这是登录方法
if (response.statusCode == 201) { //login success status code 201
//print(data['success']);
var returnMsg = data['message'];
var userToken = data['token'],
setState(() {
myToken = userToken; //I've var
});
toastMsg(returnMsg);
CurrentUserData().saveUserData(userToken); //this method i'm accessing from constant file
Navigator.of(context).pushAndRemoveUntil(MaterialPageRoute(builder: (context) => const DashboardPage()), (route) => false);
}
现在您可以从任何地方访问此 myToken 值。
http.get(Url.perse(url), headers: headersWithToken)
或直接
var res = await http.get(
Uri.parse(userDashboardUrl),
headers: {
'Content-Type': 'application/json',
'Authorization': 'Bearer $myToken'
},
);