nextjs redux，thunk和getInitialProps - 如何实现

Question

I want to use nextjs in my new project with redux and thunk also. I wondering how to implement all packages correctly.

In my previous projects pages has HOC components like:

import {connect} from 'react-redux';
import Page from './about';
import {fetchUsers} from '../../actions/user';

const mapStateToProps = (state) => {
    const {users} = state;
    return users;
};

const mapDispatchToProps = (dispatch) => {
    return {
        fetchUsers: () => dispatch(fetchUsers())
    };
};

export default connect(mapStateToProps, mapDispatchToProps)(Page);

And method to fetch users I implemented in componentDidMount

How to implement the same logic for nexjs ?

What have I do?

1. Implemented store (base on next-redux-wrapper in _app.js)
2. Created HOC component (like below) with mapStateToProps and mapDispatchToProps

Currently I thinking about use somehow this.props.fetchUsers method into getInitialProps - documentation say that this method should be used to fetch data before render site.

Please help me with correctly redux implementation for nextjs

Answer 1

You can follow this example The correct way is to pass the store to the getInitialProps context and to the App component so you can pass it to the Provider .

The getInitialProps can't access to instance of the component, this is not accessible, so you can't call this.props.fetchUsers , but, because you are passing store to its context, you can do store.dispatch(fetchUsers()) and remove dispatch from mapDispatchToProps .

Generally I dispatch actions in getInitialProps and then map state to props within connect .

Answer 2

@gg_

Your solution works but only when I change page using Link If I refresh/reload page await store.dispatch(fetchUsers()); doesn't trigger.

What is the way to do this?