Flutter App Login with NodeJS API at backend & keep user logged in using JWT token | Part 8

[@aqsashamraiz5525]

Hayee sirr thnku so muchh 🥰🥰🥰🥰🥰

[@MdSiam-kw5ox]

Nice explanation of the JWT token.

[@lifestylenounou3452]

hi , thank you for the good video, i have a question can i build both of flutter app and node backend in the same IDE , vs code for example ?

[@ProtoCodersPoint]

Yes, You can

[@dhanukalakshan1553]

Thank you very much sir. This video was really helpful

[@boneclinkz5663]

im having a problem, when i terminate the app it only shows white screen and no email

[@dpxy1599]

very helpful

[@ProtoCodersPoint]

Glad to hear that

[@dinshad1]

Could you pls share details of what type of architecture pattern is used over here

[@vishalgarna12]

Sir ji aap ktini oyaar se smajate ho 😊😊

[@NikhleshChambiyal]

Can we fetch the token in any page directly from the shared preferences?

[@ghassanalkaraan]

yes

[@kurtgalicia8966]

Hello! My token is null, what to do? Thanks!

[@ProtoCodersPoint]

Watch the video,
Might be token is not getting generated properly, put a log n check is token is getting allowed or no

[@purnakumbhar3951]

use await while generating token

[@db17db11]

THE BEST !

[@RamShres]

how to add logout feature

[@ProtoCodersPoint]

Just add a button, when the button is clicked by used clear the JWT token stored in SharedPreferences and Navigate the used to login page.

[@RamShres]

@@ProtoCodersPoint thanks

[@gokulmamanduru6641]

Simply you can clear the token from the shared preference

[@sunnydagar2567]

can you please share login.dart and api code ?

[@ProtoCodersPoint]

It’s in description u can get it from there

[@sejalkothari8668]

my token is null, wht to do?

[@xyzsaid3223]

Initially for new users..it will be null

[@akshugajbhiye4065]

Mera bhi same error aa rha hai aap issue resolve hua kya agar ha toh mujhe guide kro thora 😊

[@ProtoCodersPoint]

Will check n update about this issue asap

[@hamzashehzad7273]

Your token is null😅😅😅

[@PIXELWAVESOLUTION]

my token is null
this condition use =
class _SplashScreenPageState extends State {
time() async {
final SharedPreferences prefs = await SharedPreferences.getInstance();
var token = prefs.getString("accessToken");
Future.delayed(
const Duration(seconds: 3),
() {
if (token != null) {
Navigator.pushAndRemoveUntil(
context,
MaterialPageRoute(
builder: (context) => const HomePage(),
),
(route) => false);
} else {
Navigator.pushAndRemoveUntil(
context,
MaterialPageRoute(
builder: (context) => const LoginPage(),
),
(route) => false);
}
},
);
}
@override
void initState() {
// TODO: implement setState
super.initState();
time();
}

[@hasnainraza7450]

bro please try with wrong password once

[@PIXELWAVESOLUTION]

my token is null
this condition use =
class _SplashScreenPageState extends State {
time() async {
final SharedPreferences prefs = await SharedPreferences.getInstance();
var token = prefs.getString("accessToken");
Future.delayed(
const Duration(seconds: 3),
() {
if (token != null) {
Navigator.pushAndRemoveUntil(
context,
MaterialPageRoute(
builder: (context) => const HomePage(),
),
(route) => false);
} else {
Navigator.pushAndRemoveUntil(
context,
MaterialPageRoute(
builder: (context) => const LoginPage(),
),
(route) => false);
}
},
);
}
@override
void initState() {
// TODO: implement setState
super.initState();
time();
}

[@sabersouhaimi-sz9rq]

E/flutter (23037): [ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: LateInitializationError: Field 'prefs' has not been initialized.
E/flutter (23037): #0 _LoginDemoState.prefs (package:frontend/pages/login/login.dart)
E/flutter (23037): #1 _LoginDemoState.loginUser (package:frontend/pages/login/login.dart:44:9)
E/flutter (23037):
E/flutter (23037):

[@mute042]

How you solved it?

[@CanCaner163]

I get this error
Error: Superclass has no method named 'initState'.
super.initState();
where should the initState be defined rather?
and what do we need this for exactly?
Thank you for your time!
in main.dart too ?