JsonPersist class

An annotation placed on Notifiers to indicated that they should be persisted using JSON.

For JsonPersist to work, all involved objects must either be primitive objects such as int, String, bool, double, List, Map, or objects that contain a fromJson/toJson method pair.

Notifiers should then call NotifierPersistX.persist in their build method, and pass a compatible Storage.

@riverpod
@JsonPersist()
class MyNotifier extends _$MyNotifier {
  @override
  SomeState build() {
    persist(
      // A storage that supports JSON-based persistence.
      storage: ref.watch(storageProvider),
    );
  }
}

class SomeState {
  const SomeState(this.count);

  SomeState.fromJson(Map<String, Object?> json)
   : count = json['count'] as int;

  final int count;

  Map<String, Object?> toJson() => { 'count': count };
}

Implemented types

• RiverpodPersist

Constructors

JsonPersist.new()

An annotation placed on Notifiers to indicated that they should be persisted using JSON.

const

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited