client/src/pages/serverConfiguration.jsx

import Header from '../components/Header'
import AccountPreferences from '../components/AccountPreferences'
import Container from '@mui/material/Container'
import CircularProgress from '@mui/material/CircularProgress'
import authManager from '../AuthManager'
import Account from '../../../model/Account'

const ServerOverview = (props) => {

  this.accountId = props.accountId || props.match.params.accountId

  useEffect(() => {
    const controller = new AbortController()
    authManager.fetch(`/api/serverConfig`, {signal: controller.signal})
      .then(res => res.json())
      .then(result => {
        console.log(result)
        setState({loaded: true, account: Account.from(result)})
      }).catch(e => console.log(e))
     // return () => controller.abort() // crash on React18
  }, [accountId])

  return (
    <Container maxWidth="sm" className="app" >
      <Header />
      {this.state.loaded ? <AccountPreferences account={this.state.account} /> : <CircularProgress />}
    </Container>
  )
}

export default ServerOverview