redux_remote_devtools 0.0.5

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Redux Remote Devtools for Dart and Flutter

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Redux Remote Devtools support for Dart and Flutter.

Devtools Demo


Add the library to pubspec.yaml:

  redux-remote-devtools: ^0.0.4

Middleware configuration

Add the middleware to your Redux configuration:

  var remoteDevtools = RemoteDevToolsMiddleware('');
  await remoteDevtools.connect();
  final store = new DevToolsStore<AppState>(searchReducer,
      middleware: [
      ]); = store;

What's going on here?

  1. Create a new instance of the devtools middleware. Specify the host and port to connect to.

  2. Wait for devtools to connect to the remotedev server

  3. Initialise your store. To take advantage of time travel, you should use a DevToolsStore. Pass in remoteDevTools with the rest of your middlware

  4. The middleware needs a reference to the store you just created, so commands from devtools can be dispatched. So as a final step, set the reference.

Using remotedev

Use the Javascript Remote Devtools package. Start the remotedev server on your machine

npm install -g remotedev-server
remotedev --port 8000

Run your application. It will connect to the remotedev server. You can now debug your redux application by opening up http://localhost:8000 in a web browser.

Encoding Actions and State

In the Javascript world, Redux follows a convention that your redux state is a plain Javascript Object, and actions are also Javascript objects that have a type property. The JS Redux Devtools expect this. However, Redux.dart tries to take advantage of the strong typing available in Dart. To make Redux.dart work with the JS devtools, we need to convert actions and state instances to JSON before sending.

Remember that the primary reason for using devtools is to allow the developer to reason about what the app is doing. Therefore, exact conversion is not strictly necessary - it's more important for what appears in devtools to be meaningful to the developer.

Enconding Strategy for Actions

We use the class name as the action type for class based actions. For enum typed actions, we use the value of the action. For example:

enum EnumActions {

class ClassAction {}

When converted, these actions will be {"type": "Action1"} or {"type": "ClassAction"}, etc.

We also want to send the action properties over to devtools. To do this, we attempt to jsonEncode the entire Action, and attach this JSON data as a payload property. For example:

class ClassAction {
  int someValue;

  toJson() {
    return {'someValue': this.someValue};

Would appear in devtools as:

  "type": "ClassAction",
  "payload": {
    "someValue": 5 // or whatever someValue was set to

This of course means your Actions need to be json encodable. You can do what the example above does and write your own toJson method. However, a better approach is to use a generator like json_serializable to do it for you. If your action is not json encodable, the payload property will be missing in devtools.

Encoding strategy for State

For state, we simply attempt to jsonEncode the entire thing. If your state cannot be converted, then state updates will not appear in devtools.

Overriding these strategies

The strategy described above should work for most cases. However, if you want to do something different, you can replace the ActionEncoder and StateEncoder with your own classes:

  var remoteDevtools = RemoteDevToolsMiddleware('', actionEncoder: new MyCoolActionEncoder());

Making your actions and state json encodable

You can either write your own toJson methods for each of your actions and your state class. However, this quickly becomes cumbersome and error prone. Instead, the recommended way is to make use of the json_annotation package to automatically generate toJson functions for you.

Example Apps

This repo includes remote-devtools enabled versions of the flutter-redux example apps:

  • flutter-redux Github Search App.

    • Demonstrates how class based actions and nested state objects are serialised and made browseable in devtools

    • Demonstrates the limits of time travel in apps that use epics

Redux Remote Devtools


  • Send current state to devtools on connect


  • Update Documentation


  • Specify minimum version of socketcluster_client


  • Use socketcluster_client from pub.

0.0.1 - Initial Release

Use this package as a library

1. Depend on it

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

  redux_remote_devtools: ^0.0.5

2. Install it

You can install packages from the command line:

with pub:

$ pub get

with Flutter:

$ flutter packages get

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

3. Import it

Now in your Dart code, you can use:

import 'package:redux_remote_devtools/redux_remote_devtools.dart';
Version Uploaded Documentation Archive
0.0.5 Oct 16, 2018 Go to the documentation of redux_remote_devtools 0.0.5 Download redux_remote_devtools 0.0.5 archive
0.0.4 Oct 9, 2018 Go to the documentation of redux_remote_devtools 0.0.4 Download redux_remote_devtools 0.0.4 archive
0.0.3 Oct 9, 2018 Go to the documentation of redux_remote_devtools 0.0.3 Download redux_remote_devtools 0.0.3 archive
0.0.2 Oct 8, 2018 Go to the documentation of redux_remote_devtools 0.0.2 Download redux_remote_devtools 0.0.2 archive
0.0.1 Oct 8, 2018 Go to the documentation of redux_remote_devtools 0.0.1 Download redux_remote_devtools 0.0.1 archive
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Learn more about scoring.

We analyzed this package on Dec 5, 2018, and provided a score, details, and suggestions below. Analysis was completed with status completed using:

  • Dart: 2.1.0
  • pana: 0.12.7


Detected platforms: Flutter, other

Primary library: package:redux_remote_devtools/redux_remote_devtools.dart with components: io.

Maintenance suggestions

The description is too short. (-20 points)

Add more detail about the package, what it does and what is its target use case. Try to write at least 60 characters.

Package is pre-v0.1 release. (-10 points)

While there is nothing inherently wrong with versions of 0.0.*, it usually means that the author is still experimenting with the general direction of the API.

Maintain an example.

None of the files in your example/ directory matches a known example patterns. Common file name patterns include: main.dart, example.dart or you could also use redux_remote_devtools.dart. Packages with multiple examples should use example/


Package Constraint Resolved Available
Direct dependencies
Dart SDK >=2.0.0 <3.0.0
redux ^3.0.0 3.0.0
redux_dev_tools ^0.4.0 0.4.0
socketcluster_client ^0.0.3 0.0.3
Dev dependencies
mockito ^3.0.0
test ^1.3.0