body_builder_riverpod_adapter 2.0.5

BodyBuilder is a widget that manage the loading of your data

body_builder_riverpod_adapter

body_builder_riverpod_adapter bridges body_builder with flutter_riverpod. It lets you create Riverpod state notifiers and plug them into BodyBuilder through ref.asBodyProvider(...).

Installation

Add dependencies:

dependencies:
  body_builder: ^2.0.3
  body_builder_riverpod_adapter: ^2.0.3
  flutter_riverpod: ^3.0.3

Quick Start

import 'package:body_builder/body_builder.dart';
import 'package:body_builder_riverpod_adapter/body_builder_riverpod_adapter.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';

final mySimpleProvider = createSimpleStateProvider<String>();

final myBodyProvider = Provider<BodyProviderBase<String>>((ref) {
  return ref.asBodyProvider(
    mySimpleProvider,
    builder: ([params]) async {
      // Return the data expected by BodyBuilder.
      return 'hello';
    },
  );
});

Then consume it in BodyBuilder:

BodyBuilder(
  providers: [ref.watch(myBodyProvider)],
  builder: (String data) => Text(data),
)

Available State Helpers

• createSimpleStateProvider<T>()
• createFamilySimpleStateProvider<K, T>()
• createPaginatedStateProvider<T>()
• createPaginatedDataStateProvider<T>()
• createFamilyPaginatedStateProvider<K, T>()
• createAutoDisposeSimpleStateProvider<T>()
• createAutoDisposeFamilySimpleStateProvider<K, T>()
• createAutoDisposePaginatedStateProvider<T>()
• createAutoDisposeFamilyPaginatedStateProvider<K, T>()

Usage Patterns

Simple State

final simpleStateProvider = createSimpleStateProvider<String>();

final simpleBodyProvider = Provider<BodyProviderBase<String>>((ref) {
  return ref.asBodyProvider(
    simpleStateProvider,
    builder: ([params]) => ref.read(repoProvider).fetchSimple(),
  );
});

Family Simple State

final familySimpleStateProvider =
    createAutoDisposeFamilySimpleStateProvider<int, String>();

final familySimpleBodyProvider = Provider.family<BodyProviderBase<String>, int>(
  (ref, id) {
    return ref.asBodyProvider(
      familySimpleStateProvider(id),
      builder: ([params]) => ref.read(repoProvider).fetchRelatedSimple(id),
    );
  },
);

Paginated State

final paginatedStateProvider = createPaginatedStateProvider<String>();

final paginatedBodyProvider =
    Provider<BodyProviderBase<Iterable<String>>>((ref) {
  return ref.asBodyProvider(
    paginatedStateProvider,
    builder: ([params]) => ref.read(repoProvider).fetchPaginated(params),
  );
});

Family Paginated State

final familyPaginatedStateProvider =
    createFamilyPaginatedStateProvider<int, String>();

final familyPaginatedBodyProvider =
    Provider.family<BodyProviderBase<Iterable<String>>, int>((ref, id) {
  return ref.asBodyProvider(
    familyPaginatedStateProvider(id),
    builder: ([params]) => ref.read(repoProvider).fetchById(id, params),
  );
});

Refresh, Invalidate

BodyBuilder listens to the adapter state stream.

• If you update the notifier state, BodyBuilder displays the new value directly.
• If you invalidate the Riverpod state provider, the state is reset and BodyBuilder runs the loader again.

final key = GlobalKey<BodyBuilderState>();

BodyBuilder(
  key: key,
  providers: [ref.watch(myBodyProvider)],
  builder: (String data) => Text(data),
);

// 1) Update state only: UI updates immediately without forcing a new fetch.
ref.read(mySimpleProvider.notifier).on('Updated elsewhere');

// 2) Force a reload from the data builder.
key.currentState?.retry(allowState: false);

// 3) Invalidate provider: clears state and triggers data loading again.
ref.invalidate(mySimpleProvider);

Notes

• ref.asBodyProvider(...) is the single adapter entry point for simple and paginated states.
• For family providers, pass the resolved provider instance (for example myFamilyProvider(id)).
• The adapter updates supported notifier state internally after successful fetches.

Example App

• Simple: https://github.com/jeromecaudoux/body_builder/blob/main/body_builder_riverpod_adapter/example/lib/simple_page.dart
• Auto dispose: https://github.com/jeromecaudoux/body_builder/blob/main/body_builder_riverpod_adapter/example/lib/autodispose_sample_page.dart
• Related simple: https://github.com/jeromecaudoux/body_builder/blob/main/body_builder_riverpod_adapter/example/lib/related_simple_page.dart
• Paginated: https://github.com/jeromecaudoux/body_builder/blob/main/body_builder_riverpod_adapter/example/lib/paginated_page.dart
• Related paginated: https://github.com/jeromecaudoux/body_builder/blob/main/body_builder_riverpod_adapter/example/lib/related_paginated_page.dart

Issues

If you find a bug or want a feature, open an issue: https://github.com/jeromecaudoux/body_builder/issues