vnext/src/components/Discover.js


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import 'whatwg-fetch';
import React from 'react';
import PropTypes from 'prop-types';

import Message from './Message';
import Spinner from './Spinner';

export default class Discover extends React.Component {
  constructor(props) {
    super(props);
    this.state = {
      msgs: [],
      loading: false,
      search: this.props.location.search
    };
    this.loadMessages = this.loadMessages.bind(this);
  }
  componentDidMount() {
    this.loadMessages();
  }
  componentWillReceiveProps(nextProps) {
    if (this.props.location.search != nextProps.location.search) {
      this.loadMessages(nextProps.location.search)
    }
  }
  loadMessages(filter = '') {
    this.setState({ msgs: []})
    const url = 'https://api.juick.com/messages' + filter;
    fetch(url)
        .then(response => {
            return response.json()
        })
        .then(data =>
            this.setState({ msgs: data })
        ).catch(ex => {
      console.log(ex);
    });
  }

  render() {
    var nodes = this.state.msgs.map(msg => {
      return (<Message key={msg.mid} data={msg}/>);
    });
    return this.state.msgs.length > 0 ? (
      <div className="msgs" id="content">{nodes}</div>
    ) : <Spinner />;
  }
}

Discover.propTypes = {
  msgs: PropTypes.array
};