2.5 KiB
Redux Thunk example
How to use
Using create-next-app
Execute create-next-app
with Yarn or npx to bootstrap the example:
npx create-next-app --example with-redux-thunk with-redux-thunk-app
# or
yarn create next-app --example with-redux-thunk with-redux-thunk-app
Download manually
Download the example:
curl https://codeload.github.com/zeit/next.js/tar.gz/canary | tar -xz --strip=2 next.js-canary/examples/with-redux-thunk
cd with-redux-thunk
Install it and run:
npm install
npm run dev
# or
yarn
yarn dev
Deploy it to the cloud with now (download)
now
The idea behind the example
This example shows how to integrate Redux and Redux Thunk 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).
The Redux 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 react-redux
's Provider
component.
index.js
have access to the redux store using connect
from react-redux
.
counter.js
and examples.js
have access to the redux store using useSelector
and useDispatch
from react-redux@^7.1.0
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. 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: store.js