fileChangedHandler(e) {
    e.preventDefault();
    const file = e.target.files[0];
    const isImage = file.type.indexOf('image') > -1;
    if (file && isImage) {
      const reader = new FileReader();

      reader.onloadend = () => {
        const image = new Image();
        image.src = reader.result;
        image.onload = () => {
          const resizedDataUrl = resizeImage(image, 1280);
          this.uploadHandler(file.name, resizedDataUrl);
        };
      };
      reader.readAsDataURL(file);
    }
  }
  uploadHandler(filename, file) {
    return api.postData('/images', file, filename)
      .then((response) => {
        response = JSON.parse(response);
        // React-specific stuff
        this.setState({
          id: response.id,
          thumbUrl: response.thumbUrl,
          url: response.url,
          currState: 'complete',
        });
      });
  }