public/components/reactApp.react.js

import React from 'react';
import Reqwest from 'reqwest';
import ContentSourceService from '../services/contentSourceService';
import Navigation from './navigation.react';

export default class ReactApp extends React.Component {
    constructor(props) {
        super(props);

        this.state = {
            contentSources: []
        };

        this.loadContentSources = this.loadContentSources.bind(this);
    }

    loadContentSources() {
        ContentSourceService.getContentSources().then(response => {
            this.setState({
                contentSources: response.contentSources
            });
        });
    }

    componentDidMount () {
        this.loadContentSources();
        setInterval(this.loadContentSources, 30000);
    }

    render () {
        return (
            <div id="wrapper">
                <Navigation data={this.state.contentSources} />
                {this.props.children}
            </div>
        );
    }
}