Recompose withStateHandlers with TypeScript

FlashMessage.tsx

import * as React from 'react';
import { compose, lifecycle, pure, StateHandler, StateHandlerMap, withStateHandlers } from 'recompose';
import { Message, Transition } from 'semantic-ui-react';

import './FlashMessage.css';

export interface FlashMessageProps {
  message: string;
  isWarning?: boolean;
}

interface StateProps {
  visible: boolean;
}

type StateHandlerProps = StateHandlerMap<StateProps> & {
  display(): StateHandler<StateProps>;
  erase(): StateHandler<StateProps>;
};

type EnhancedFlashMessageProps =
  FlashMessageProps &
  StateProps &
  StateHandlerProps;

const FlashMessage: React.SFC<EnhancedFlashMessageProps> = ({
  message = '',
  isWarning = false,
  visible,
  erase,
}) => (
  <>
    <Transition
      visible={visible}
      animation="fade"
      duration={800}
    >
      <Message
        className="flash-message"
        positive={!isWarning}
        negative={isWarning}
        onDismiss={erase}
      >
        {message}
      </Message>
    </Transition>
  </>
);

export default compose<
  EnhancedFlashMessageProps,
  FlashMessageProps
>(
  withStateHandlers<
    StateProps,
    StateHandlerProps,
    FlashMessageProps
  >(
    (props) => ({
      ...props,
      visible: false,
    }),
    {
      display: (state, props) => () => ({
        visible: true,
      }),
      erase: (state, props) => () => ({
        visible: false,
      }),
    },
  ),
  lifecycle<EnhancedFlashMessageProps, {}, {}>({
    componentDidMount() {
      const { message, display, erase } = this.props;
      if (message) {
        display();
        setTimeout(() => erase(), 3000);
      }
    },
  }),
  pure,
)(FlashMessage);

Hi, have you figured out example with withHandlers ?

I suppose that there is one mistake with your example

type StateHandlerProps = StateHandlerMap<StateProps> & {
  display(): StateHandler<StateProps>;
  erase(): StateHandler<StateProps>;
};

It needs to be something like this

type StateHandlerProps = StateHandlerMap<StateProps> & {
  display: StateHandler<StateProps>;
  erase: StateHandler<StateProps>;
};

I've posted explanation for it there
https://stackoverflow.com/questions/54725408/how-to-resolve-an-error-in-typescript-about-withstatehandlers?answertab=active#tab-top