You can use the web chat in a React app by creating a component that will add the web chat to your app.

Prerequisites

A React app
A bot deployed on Botpress Cloud

import React, { useEffect } from 'react'

const Chatbot = () => {
  useEffect(() => {
    const script = document.createElement('script')
    script.src = 'https://cdn.botpress.cloud/webchat/v1/inject.js'
    script.async = true
    document.body.appendChild(script)

    script.onload = () => {
      window.botpressWebChat.init({
        botId: '<botID>',
        hostUrl: 'https://cdn.botpress.cloud/webchat/v1',
        messagingUrl: 'https://messaging.botpress.cloud',
        clientId: '<clientID>',
      })
    }
  }, [])

  return <div id="webchat" />
}

export default Chatbot

You can then add the component to your app.

import React from 'react'
import Chatbot from './Chatbot'

const App = () => {
  return (
    <div>
      <Chatbot />
    </div>
  )
}

export default App