How can I read the string value from the _storageToken.read() call?-CodePudding

I have this construction in my homepage widget which is suppose to get the saved token. Now this returns a Future. So How can I read the token string? I tried storedToken.toString() but it returns Future<String?> not what I expected. I am expecting a String value like "fhsdjkfhs.djkfhsdjkfhsdjk"

void initState(){
    const _storageToken = FlutterSecureStorage();
    storedToken = _storageToken.read(key: 'jwt');
    print(storedToken);
}

CodePudding user response：

_storageToken.read() returns a Future, so you have to await it in order to get the value.

The problem is, you can't perform async/await action directly on the initState. If you still want to call that _storageToken.read() on the initState, you can use this workaround.

void initState(){
   /// Initialize Flutter Secure Storage
   const _storageToken = FlutterSecureStorage();
   
   /// Await your Future here (This function only called once after the layout is Complete) 
   WidgetsBinding.instance?.addPostFrameCallback((timeStamp) async {
       final storedToken = await _storageToken.read(key: 'jwt');
       print(storedToken);
   });
}