【发布时间】:2019-07-15 02:13:21
【问题描述】:
我已经用 react-native 开始了 redux。我正在尝试使用地图从列出该数据的 API 中获取数据。以下是我从 API 获取数据的代码。
App.js
const store = createStore(
rootReducer,
applyMiddleware(thunk)
);
const App = () => {
return (
<Provider store={store}>
<ProductList />
</Provider>
);
};
export default App;
productList.js
class ProductList extends React.Component {
componentDidMount() {
this.props.dispatch(fetchProducts());
}
render() {
const { products } = this.props;
return (
<View>
{products.map(product => (
<Text key={product.title}>{product.title}</Text>
))}
</View>
);
}
}
const mapStateToProps = state => ({
products: state.products.items,
});
export default connect(mapStateToProps)(ProductList);
productAction.js
async function getProducts() {
return fetch("https://rallycoding.herokuapp.com/api/music_albums")
.then(res => res.json());
}
export function fetchProducts() {
return async dispatch => {
return getProducts()
.then(json => {
dispatch(fetchProductsSuccess(json));
return json;
})
.catch(error =>
console.log(error)
);
};
}
export const FETCH_PRODUCTS_SUCCESS = "FETCH_PRODUCTS_SUCCESS";
export const fetchProductsSuccess = products => ({
type: FETCH_PRODUCTS_SUCCESS,
payload: { products }
});
productReducer.js
const initialState = {
items: [],
};
export default function productReducer(
state = initialState,
action
) {
switch (action.type) {
case FETCH_PRODUCTS_SUCCESS:
return {
...state,
items: action.payload.products
};
default:
return state;
}
}
rootReducer.js
export default combineReducers({
products
});
它运行良好。它也显示列表。
但是任何人都可以告诉我,如果我将在大型项目中使用这种方法是正确的方法,那么它会有用还是应该遵循其他方法?提前致谢。
【问题讨论】:
标签: react-native redux react-redux redux-thunk