Preact Git User Component

import { h, Component } from 'preact';
import style from './styles'
export default class Github extends Component {
  state = {
      username: '',
      followers: null,
    };
  fetchUser = () => {
      fetch(`https://api.github.com/users/${this.state.username}`)
      .then(response => response.json())
      .then(user => this.setState({followers: user.followers }));
  }
  setUsername = e => {
      this.setState({ username: e.target.value });
  }
  render({}, { username, followers }) {
      return (
        <div class={style.container}>
          <h1>Enter a Github username</h1>
          <input
            type="text"
            value={username}
            onChange={this.setUsername}
           />
          <button
            onClick={this.fetchUser}>
           Submit
          </button>
          {
          followers &&
          <h3>{username} has {followers} followers on Github.</h3>
           }
        </div>
      );
   }
}