Working With JSON In Dart + Flutter - 25 Days Of Flutter

Learn how to handle basic json in dart and flutter.

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[fatihsertacyildirim]

hi benjamin thank you but how we can write the data on the text i cannot do it

[orjihvy]

What would be the cost if we avoided using factory constructor?

[KhoiNguyen-jtmr]

I got this problem 'The parameter 'password' can't have a value of 'null' because of its type, but the implicit default value is 'null'.
Try adding either an explicit non-'null' default value or the 'required' modifier' when when initializing Accounts({this.userName, this.password});

Here's my code:

class Accounts {
String userName;
String password;

Accounts({this.userName, this.password});

factory Accounts.fromJson(Map<String, dynamic> json) {
return Accounts(
userName: json['username'],
password: json['password'],
);
}
}