如何从react express节点组件调用外部URL？

import React, { Component } from 'react';
import axios from 'axios';

class MyComponent extends Component {
  constructor(props) {
    super(props);
    this.state = {
      data: null
    };
  }

  componentDidMount() {
    this.fetchData();
  }

  fetchData() {
    axios.get('https://example.com/api/data')
      .then(response => {
        this.setState({ data: response.data });
      })
      .catch(error => {
        console.error(error);
      });
  }

  render() {
    const { data } = this.state;

    return (
      <div>
        {data ? (
          <div>
            {/* 根据获取到的数据展示内容 */}
          </div>
        ) : (
          <div>Loading...</div>
        )}
      </div>
    );
  }
}

export default MyComponent;