flutter_put

yudiwibisono

May 27th, 2023

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import 'package:flutter/material.dart';
import 'package:http/http.dart' as http;
void main() => runApp(MaterialApp(home: MyApp()));
class MyApp extends StatefulWidget {
const MyApp({Key? key}) : super(key: key);
@override
MyAppState createState() => MyAppState();
}
class MyAppState extends State<MyApp> {
late Future<int> respPost; //201 artinya berhasil
String url = "http://127.0.0.1:8000/update_mhs_put/";
Future<int> fetchData() async {
//data disimpan di body
String nim = "13594022";
//nim tambahkan di url
//pastikan http.put! bukan post
final response = await http.put(Uri.parse(url + nim),
headers: <String, String>{
'Content-Type': 'application/json; charset=UTF-8'
},
body: """
{
"nim":"13594022",
"nama": "Ahmad Aulia2",
"id_prov": "142",
"angkatan": "2022",
"tinggi_badan": 192} """);
return response.statusCode; //sukses kalau 200
}
@override
void initState() {
super.initState();
respPost = Future.value(0); //init
}
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'My App',
home: Scaffold(
appBar: AppBar(
title: const Text('My App'),
),
body: Center(
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
ElevatedButton(
onPressed: () {
setState(() {
respPost = fetchData();
});
},
child: const Text('Klik untuk update data (PUT)'),
),
Text("Hasil:"),
FutureBuilder<int>(
future: respPost,
builder: (context, snapshot) {
if (snapshot.hasData) {
if (snapshot.data! == 200) {
return Text("Proses Update Berhasil!");
}
if (snapshot.data! == 0) {
return Text("");
} else {
return Text("Proses insert gagal");
}
}
// default: loading spinner.
return const CircularProgressIndicator();
})
],
)), //column center
), //Scaffold
); //Material APP
}
}

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