react-router-loading

Custom react router switch that allows you to load data before switching the screen

The latest version is React Router 6 friendly, which basically means that it won't work with React Router 5. If you need it to work with React Router 5, use version ^0.4.x.

DEMO

Requirements

"react": "^16.8.0 || ^17.0.0",
"react-dom": "^16.8.0 || ^17.0.0",
"react-router-dom": "^5.0.0"

This package uses react-router-dom as main router so you should implement it in your project first.

Installation

npm install react-router-loading
## or
yarn add react-router-loading

Usage

In your router section import Routes and Route from react-router-loading instead of react-router-dom

import { Routes, Route } from 'react-router-loading';

<Routes>
    <Route path="/page1" component={Page1} />
    <Route path="/page2" component={Page2} />
    ...
</Routes>;

Add loading prop to every route that must be loaded before switching

<Routes>
    // data will be loaded before switching
    <Route path="/page1" component={Page1} loading />
    // instant switch as before
    <Route path="/page2" component={Page2} />
    ...
</Routes>

Add loadingContext.done() at the end of your initial loading method in components that mentioned in routes with loading prop (in this case it's Page1)

import { LoadingContext } from 'react-router-loading';
const loadingContext = useContext(LoadingContext);

const loading = async () => {
    // loading some data

    // call method to indicate that loading is done and we are ready to switch
    loadingContext.done();
};

or for class components

import { LoadingContext } from "react-router-loading";

class ClassComponent extends React.Component {
    ...
    loading = async () => {
        // loading some data

        // call method from props to indicate that loading is done
        this.props.loadingContext.done();
    };
    ...
};

// we should wrap class component with Context Provider to get access to loading methods
const ClassComponentWrapper = (props) =>
    <LoadingContext.Consumer>
        {loadingContext => <ClassComponent loadingContext={loadingContext} {...props} />}
    </LoadingContext.Consumer>

Config

You can specify loading screen that would be shown at the first loading of your app

const MyLoadingScreen = () => <div>Loading...</div>

<Routes loadingScreen={MyLoadingScreen}>
...
</Routes>

Use maxLoadingTime property if you want to limit loading time. Pages will switch if loading takes more time than specified in this property (ms).

<Routes maxLoadingTime={500}>...</Routes>

If you want to change LoadingContext globally you can pass isLoading property to the Routes. This way you don't need to add extra loadingContext.done(); in your page components after fetching is done.

import { useIsFetching } from 'react-query';
const isFetching = useIsFetching();

<Routes isLoading={isFetching}>...</Routes>;

Call topbar.config() if you want to change topbar configuration. More info here.

import { topbar } from 'react-router-loading';

topbar.config({
    autoRun: false,
    barThickness: 5,
    barColors: {
        0: 'rgba(26,  188, 156, .7)',
        0.3: 'rgba(41,  128, 185, .7)',
        1.0: 'rgba(231, 76,  60,  .7)',
    },
    shadowBlur: 5,
    shadowColor: 'red',
    className: 'topbar',
});

How to run example on localhost

Clone repository and run

yarn build && yarn start

License

MIT