How to use
npx create-next-app --example with-redux with-redux-app # or yarn create next-app --example with-redux with-redux-app
Download the example or clone the repo:
curl https://codeload.github.com/zeit/next.js/tar.gz/canary | tar -xz --strip=2 next.js-canary/examples/with-redux cd with-redux
Install it and run:
npm install npm run dev # or yarn yarn dev
The idea behind the example
This example shows how to integrate Redux in Next.js.
Usually splitting your app state into
pages feels natural but sometimes you'll want to have global state for your app. This is an example on how you can use redux that also works with Next.js's universal rendering approach.
In the first example we are going to display a digital clock that updates every second. The first render is happening in the server and then the browser will take over. To illustrate this, the server rendered clock will have a different background color (black) than the client one (grey).
Provider is implemented in
pages/_app.js. Since the
MyApp component is wrapped in
withReduxStore the redux store will be automatically initialized and provided to
MyApp, which in turn passes it off to
All pages have access to the redux store using
On the server side every request initializes a new store, because otherwise different user data can be mixed up. On the client side the same store is used, even between page changes.
The example under
components/counter.js, shows a simple incremental counter implementing a common Redux pattern of mapping state to props. Again, the first render is happening in the server and instead of starting the count at 0, it will dispatch an action in redux that starts the count at 1. This continues to highlight how each navigation triggers a server render first and then a client render when switching pages on the client side
For simplicity and readability, Reducers, Actions, and Store creators are all in the same file: