bloc_helpers 0.3.2

  • Readme
  • Changelog
  • Installing
  • 73

Dart Bloc Pattern helper #

What is Bloc pattern ? #

bloc_helpers #

This package contain helper class and common Bloc Pattern

  • Bloc (base to implement Bloc pattern)
  • AsyncTaskBloc
  • AsyncCachedTaskBloc
  • RequestBloc
  • CachedRequestBloc
  • SelectorBloc

Bloc class

The bloc class is a simple class that provide dispose function and a disposed boolean

abstract class Bloc {
  bool _disposed = false;

  bool get disposed => _disposed;

  @mustCallSuper
  void dispose() {
    _disposed = true;
  }
}

Request bloc #

RequestBloc help to implement async call, it provides following stream ans sink.

Sink<Request> callSink

Stream<bool> running

Stream<Request> onCall

Stream<Response> onResult

CachedRequestBloc add the ability to cache response, to avoid multiple call when request does not change, it provides following stream and sink.

Stream<Response> cachedResult

Sink<Response> invalidateCacheSink

Sink<Response> updateCachedResultSink

Usage #

import 'package:bloc_helpers/bloc_helpers.dart';
import 'package:meta/meta.dart';

class MyRequestBloc extends RequestBloc<MyRequest, MyResponse> {
  @override
  @protected
  Future<MyResponse> request(MyRequest input) async {
    // TODO: implement request
    return MyResponse();
  }
}

bloc.callSink.add(MyRequest());

See example

Selector bloc #

Selector bloc help implementing a simple selection behavior

final selector = SelectorBloc<String>();

  selector.selected.listen((selected) => print(selected));

  selector.selectSink.add('foo');
  selector.unselectSink.add('foo');

  selector.selectAllSink.add(['foo', 'bar']);

Contributions #

This repository is open to Pull Request and new idea :)

##

0.3.2 #

  • update RxDart to ^0.22.0

0.3.0 #

  • update RxDart to 0.21.0;
  • rename onRunning to running
  • add seeded constructor

0.2.0 #

  • Breaking Change use contructor for unique selector SelectorBloc(); // not unique SelectorBloc.unique();

  • AsyncTaskBloc and AsyncCachedTaskBloc

  • Deprecated

    • requestSink renamed to callSink
    • onLoading renamed to onRunning
    • onRequest renamed to onResult
    • onRequest renamed to onCall
    • cachedResponse renamed to cachedResult
    • updateCachedResponseSink to updateCachedResultSink

0.1.1 #

  • fix selector

0.1.0 #

  • Observable instead of Stream
  • use ValueObservable
  • dispose function is now async

0.0.6 #

  • addd disposed check before addError

0.0.5 #

  • cleanup abd better README

0.0.4 #

  • protected request method

0.0.3 #

  • fix cached response sink

0.0.2 #

  • add onRequest stream

0.0.1 #

  • first version

Use this package as a library

1. Depend on it

Add this to your package's pubspec.yaml file:


dependencies:
  bloc_helpers: ^0.3.2

2. Install it

You can install packages from the command line:

with pub:


$ pub get

with Flutter:


$ flutter pub get

Alternatively, your editor might support pub get or flutter pub get. Check the docs for your editor to learn more.

3. Import it

Now in your Dart code, you can use:


import 'package:bloc_helpers/bloc_helpers.dart';
  
Popularity:
Describes how popular the package is relative to other packages. [more]
47
Health:
Code health derived from static analysis. [more]
99
Maintenance:
Reflects how tidy and up-to-date the package is. [more]
100
Overall:
Weighted score of the above. [more]
73
Learn more about scoring.

We analyzed this package on Dec 10, 2019, and provided a score, details, and suggestions below. Analysis was completed with status completed using:

  • Dart: 2.6.1
  • pana: 0.13.1+4

Health suggestions

Fix lib/src/request.dart. (-1 points)

Analysis of lib/src/request.dart reported 2 hints:

line 68 col 7: Unnecessary new keyword.

line 111 col 7: Unnecessary new keyword.

Fix lib/src/async.dart. (-0.50 points)

Analysis of lib/src/async.dart reported 1 hint:

line 190 col 5: Future results in async function bodies must be awaited or marked unawaited using package:pedantic.

Maintenance suggestions

Maintain an example.

None of the files in the package's example/ directory matches known example patterns.

Common filename patterns include main.dart, example.dart, and bloc_helpers.dart. Packages with multiple examples should provide example/README.md.

For more information see the pub package layout conventions.

Dependencies

Package Constraint Resolved Available
Direct dependencies
Dart SDK >=1.23.0 <3.0.0
meta ^1.1.0 1.1.8
rxdart ^0.22.0 0.22.6 0.23.0-dev.3
test ^1.5.0 1.9.4
Transitive dependencies
_fe_analyzer_shared 1.0.1
analyzer 0.39.2+1
args 1.5.2
async 2.4.0
boolean_selector 1.0.5
charcode 1.1.2
collection 1.14.12
convert 2.1.1
coverage 0.13.3+3
crypto 2.1.4
csslib 0.16.1
glob 1.2.0
html 0.14.0+3
http 0.12.0+2
http_multi_server 2.1.0
http_parser 3.1.3
io 0.3.3
js 0.6.1+1
logging 0.11.3+2
matcher 0.12.6
mime 0.9.6+3
multi_server_socket 1.0.2
node_interop 1.0.3
node_io 1.0.1+2
node_preamble 1.4.8
package_config 1.1.0
package_resolver 1.0.10
path 1.6.4
pedantic 1.9.0
pool 1.4.0
pub_semver 1.4.2
shelf 0.7.5
shelf_packages_handler 1.0.4
shelf_static 0.2.8
shelf_web_socket 0.2.3
source_map_stack_trace 1.1.5
source_maps 0.10.8
source_span 1.5.5
stack_trace 1.9.3
stream_channel 2.0.0
string_scanner 1.0.5
term_glyph 1.1.0
test_api 0.2.11
test_core 0.2.15
typed_data 1.1.6
vm_service 2.1.3
watcher 0.9.7+13
web_socket_channel 1.1.0
yaml 2.2.0