Async Image Load with React and Redux

Plenty of ways to do it.

One of which is to write your own component, where, a newly loaded image prompts a redraw in componentDidMount. Here's the full source code of a lazy image that you can use in your own project:

export default class LazyImage extends React.Component {
  constructor(props) {
    super(props);
    this.state = {
      loaded: false,
      error: false
    };
  }

  componentDidMount() {
    const img = new Image();
    img.onload = () => {
      this.setState({
        loaded: true
      });
    };
    img.onerror = () => {
      this.setState({
        error: true
      });
    };
    img.src = this.props.src;
  }

  render() {
    if (this.state.error) {
      return <img
        className={this.props.className}
        style={this.props.style}
        src={this.props.unloadedSrc}
        alt={this.props.alt} />
    } else if (!this.state.loaded) {
      return <img
        className={this.props.className}
        style={this.props.style}
        src={this.props.unloadedSrc}
        alt={this.props.alt} />
    }
    return <img
      className={this.props.className}
      style={this.props.style}
      src={this.props.src}
      alt={this.props.alt} />
  }
}

Which you would then use like so:

<LazyImage unloadedSrc={unloadedSrc} src={src} />

And then, you have the option of using a plethora of components that you can find just by googling the terms:

• "image load react"
• "react image lazy load"

Or any similar search term variety, thereof. My favourite component is react-imageloader.

I hope this helps.