An example to demonstrate a Modal component using class.

ModalClass.js

import React from "react";

import { ModalComponent } from "./Modal";

class ModalContainer extends React.Component {
  state = {
    showModal: false
  };

  onHandleModal = () => {
    const { showModal } = this.state;
    this.setState({ showModal: !showModal });
  };

  onBtnSuccess = () => {
    console.warn("Success!");
  };

  onBtnCancel = () => {
    console.warn("Cancel!");
  };

  render() {
    return (
      <ModalComponent
        {...this.props}
        {...this.state}
        onHandleModal={this.onHandleModal}
        onBtnSuccess={this.onBtnSuccess}
        onBtnCancel={this.onBtnCancel}
      />
    );
  }
};