使用Fetch创建表单并使用ReactJS回调ID的问题

import React, { useState } from 'react';

const FormComponent = () => {
  const [formData, setFormData] = useState({ name: '', email: '' });

  const handleInputChange = (event) => {
    const { name, value } = event.target;
    setFormData({ ...formData, [name]: value });
  };

  const handleSubmit = (event) => {
    event.preventDefault();
    // 使用Fetch发送POST请求到后端，并将表单数据作为请求体
    fetch('/api/submit', {
      method: 'POST',
      body: JSON.stringify(formData),
      headers: {
        'Content-Type': 'application/json'
      }
    })
      .then(response => response.json())
      .then(data => {
        // 在这里处理后端返回的数据，比如回调ID
        console.log(data.id);
      })
      .catch(error => {
        console.error('Error:', error);
      });
  };

  return (
    <form onSubmit={handleSubmit}>
      <label>
        Name:
        <input type="text" name="name" value={formData.name} onChange={handleInputChange} />
      </label>
      <label>
        Email:
        <input type="email" name="email" value={formData.email} onChange={handleInputChange} />
      </label>
      <button type="submit">Submit</button>
    </form>
  );
};

export default FormComponent;