I upgraded meteor and I started receiving deprecation warning for createContainer(). As a result, I’ve tried to implement withTracker
however now I’m getting Component(...): A valid React element (or null) must be returned. You may have returned undefined, an array or some other invalid object.
. I’m not sure what I’m missing here, can someone point out my error.
Path: App.jsx
import { Meteor } from 'meteor/meteor';
import React from 'react';
import PropTypes from 'prop-types';
import { BrowserRouter as Router, Route, Switch } from 'react-router-dom';
import { withTracker } from 'meteor/react-meteor-data';
// IsCandidate Spefic Routes
import TestContainer from '../../containers/candidate/TestContainer';
const App = appProps => (
<Router>
<ScrollToTop>
<div className="bgColor">
<NavBar {...appProps} />
<Grid className="main-page-container">
<Switch>
{/* candidate routes */}
<IsCandidate exact path="/candidate/testpage/:id" component={withTracker(TestContainer)} {...appProps} />
{/* IsPublic routes */}
<Route render={function () {
return <p>Page not found</p>;
}}
/>
</Switch>
</Grid>
</div>
</ScrollToTop>
</Router>
);
App.propTypes = {
loggingIn: PropTypes.bool,
isCandidate: PropTypes.bool
};
export default withTracker(() => {
const loggingIn = Meteor.loggingIn();
return {
loggingIn,
isCandidate: !loggingIn && !!Meteor.userId() && !!Roles.userIsInRole(Meteor.userId(), 'isCandidate'),
};
})(App);
Path: IsCandidate.jsx
import React from 'react';
import PropTypes from 'prop-types'; // ES6
import { Route, Redirect } from 'react-router-dom';
const IsCandidate = ({ loggingIn, isCandidate, component: Component, ...rest }) => (
<Route
{...rest}
render={(props) => {
if (loggingIn) return <div />;
return isCandidate ?
(<Component loggingIn={loggingIn} isCandidate={isCandidate} {...rest} {...props} />) :
(<Redirect to="/login" />);
}}
/>
);
IsCandidate.propTypes = {
loggingIn: PropTypes.bool,
isCandidate: PropTypes.bool,
component: PropTypes.func
};
export default IsCandidate;
Path: Testcontainer.jsx
import { Meteor } from 'meteor/meteor';
import { withTracker } from 'meteor/react-meteor-data';
import { Test } from '../../../api/test/test';
import TestPage from '../../pages/candidate/TestPage';
export default TestContainer = withTracker(({ match }) => {
const testHandle = Meteor.subscribe('test', match.params.id);
const loadingTest = !testHandle.ready();
const testCollection = Test.findOne(match.params.id);
const testExist = !loadingTest && !!testCollection;
return {
loadingTest,
testExist,
testCollection: testExist ? testCollection : {}
};
}, TestPage);