Delve into Redux Toolkit to streamline Redux development with best practices. Gain insights into creating stores and reducers, and build TweetFind, a Twitter search app, for your portfolio.

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Learn Redux toolkit (RTK) which highlights the new redux best practices and the new standard of developing applications. With RTK, redux development is more efficient and easier to understand.

Redux toolkit brings the much-needed simplicity you’ve longed for in your redux development. It has out-of-the-box support to handle common use cases such as creating the redux store, creating reducers, handling immutable update logic, and much more.

At the end of the course, you will build tweetfind, a Twitter search application. This will be a great addition to your portfolio.

Intermediate Redux with Redux Toolkit

# Automated Testing
In the past, testing a Redux application may have seemed like it required advanced testing knowledge that differs from those for testing a regular React application. Well, that’s no longer the case. 

First, let’s consider unit testing. 

Before the Redux toolkit, you may have had to write unit tests for all your action creators and reducers. But do you have to do so now? 

Well, it depends. 

If you write these, you aren’t testing whether `createAction`, `createReducer`, or `createSlice` from RTK works properly. These are already well tested in the RTK library. Your tests really just check that you’re using these methods correctly. 

If the project is built using Typescript, then you could get away with not writing these unit tests. The Typescript compiler will check your syntax anyway, e.g., making sure the RTK methods are invoked with the right arguments.

These unit tests may offer some confidence for refactoring, but rightly judge whether you need to do this or not.  You may be better off spending time writing better integration or functional tests, which is where things get interesting. 

With these functional or integration tests, nothing particularly “Redux-specific" jumps out at you. Just write these tests like you would a React application. 

The library of choice for many standard frontend projects is [react-testing-library](https://testing-library.com/docs/react-testing-library/intro/). If you’re already familiar with testing react applications, you’ll do just fine with your Redux apps!

# Usage with Typescript 
[Typescript](https://www.typescriptlang.org/) is the Javascript superset language that you’ve probably heard before.

This isn’t a Typescript course, but there are excellent reasons to use Typescript in your frontend project. 

If you choose to write Typescript with Redux toolkit, it has excellent support for Typescript, so you’d be in good hands! I recommend taking a look at the official ["Usage With Typescript"](https://redux-toolkit.js.org/usage/usage-with-typescript) guide.  
 

Learn how to test a modern Redux application.

What is Redux Toolkit and Why Use it?

Building Your First Redux Toolkit Application

Challenge on Building Your First Redux toolkit Application

RTK Deep Dive: Build a Twitter Search Application

Conclusion: Where to Go From Here

Appendix

Testing a Modern Redux Application

Automated Testing