1+ import 'dart:convert' ;
2+ 3+ import 'package:flutter/foundation.dart' ;
4+ import 'package:github_following/Models/User.dart' ;
5+ import 'package:github_following/Requests/GithubRequest.dart' ;
6+ 7+ class UserProvider with ChangeNotifier {
8+ User user;
9+ String errorMessage;
10+ bool loading = false ;
11+ 12+ Future <bool > fetchUser (username) async {
13+ setLoading (true );
14+ 15+ await Github (username).fetchUser ().then ((data) {
16+ setLoading (false );
17+ 18+ if (data.statusCode == 200 ) {
19+ setUser (User .fromJson (json.decode (data.body)));
20+ } else {
21+ Map <String , dynamic > result = json.decode (data.body);
22+ setMessage (result['message' ]);
23+ }
24+ });
25+ 26+ return isUser ();
27+ }
28+ 29+ void setLoading (value) {
30+ loading = value;
31+ notifyListeners ();
32+ }
33+ 34+ bool isLoading () {
35+ return loading;
36+ }
37+ 38+ void setUser (value) {
39+ user = value;
40+ notifyListeners ();
41+ }
42+ 43+ User getUSer () {
44+ return user;
45+ }
46+ 47+ void setMessage (value) {
48+ errorMessage = value;
49+ notifyListeners ();
50+ }
51+ 52+ String getMessage () {
53+ return errorMessage;
54+ }
55+ 56+ bool isUser () {
57+ return user != null ? true : false ;
58+ }
59+ }
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