Using the Redux DevTools with ngrx/store

Published on June 7, 2017


Using the Redux DevTools with ngrx/store

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The Redux DevTools extension is a very popular tool to visualize and perform actions on the Redux state tree of an application. Thankfully, it can also be used with Angular 2+ projects that use ngrx/store for state management, thanks to ngrx/store-devtools.

First install the Redux DevTools extension itself. If you’re using Chrome, the easiest is through the Chrome web store. And here for the Firefox version. With the extension installed, you’ll see a new tab in your browser’s DevTools available when you’re working in a Redux-powered app.

Then install @ngrx/store-devtools using Yarn or npm:

$ yarn add @ngrx/store-devtools

# or:
$ npm install @ngrx/store-devtools --save

Finally, in your app module, import StoreDevtoolsModule and add it to your NgModule’s imports:

// ...

import { StoreModule } from '@ngrx/store';
import { todoReducer } from './reducers/todo.reducer';
import { StoreDevtoolsModule } from '@ngrx/store-devtools';

The maxAge config is optional and helps limit the amount of actions kept in the DevTools.

✨ And that’s it! You’re ready to start using the Redux DevTools in your ngrx/store projects.

The Redux Devtools extension in action

You can skip actions, visualize actions and state or import/export the current state tree:

Redux Devtools action chart

You can even dispatch actions directly from the extension:

Dispatching an action

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Using Angular 9 in July, 2020 my experience with this is that the Redux tab in Developer tools gave me the “store not found” dark grey screen until I configured the StoreDevtoolsModule like this in app.module.ts:

StoreDevtoolsModule.instrument({ maxAge: 25, // Retains last 25 states logOnly: environment.production, // Restrict extension to log-only mode }),

I know that this article says that setting those values is optional, but for me it was required just to get something basic working. It’s been 3 years since this article was published, so this may be part of the evolution of the tool.

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