const uploaderProps = {
  action: '/upload.do',
  data: { a: 1, b: 2 },
  multiple: true,
  beforeUpload(file) {
    console.log('beforeUpload', file.name);
  },
  onStart: file => {
    console.log('onStart', file.name);
  },
  onSuccess(file) {
    console.log('onSuccess', file);
  },
  onProgress(step, file) {
    console.log('onProgress', Math.round(step.percent), file.name);
  },
  onError(err) {
    console.log('onError', err);
  },
  capture: 'user',
  accept:'.jpg',
  directory: false
};

 onChange = (e: React.ChangeEvent<HTMLInputElement>) => {
    const { accept, directory } = this.props;
    const { files } = e.target;
    const acceptedFiles = [...files].filter(
      (file: RcFile) => !directory && attrAccept(file, accept),
    );
    this.uploadFiles(acceptedFiles);
    this.reset();
  };