Not able to retrieve proper value from stored shared preference in Flutter

Question

I have use shared preferences for store api token.but it not return full token. always missing some letters from end of token.

this is how a tried.

SharedPreferences prefs = await SharedPreferences.getInstance();
prefs.setString("bearer_token", response.data!.accessToken ?? "");


SharedPreferences prefs = await SharedPreferences.getInstance();
token = prefs.get('bearer_token').toString();

Answer 1

To accept null value while receiveing you need to change

token = prefs.get('bearer_token').toString();

to

token = prefs.getString('bearer_token');// now it return nullable string

And it should define like String? token;.

Also you are saving empty string on null case.

You can do

prefs.setString("bearer_token", response.data?.accessToken ?? "");

Now check empty string like

final result = prefs.getString('bearer_token')??"";
if(result.isEmpty){
  ///....
}