使用rest-api从类别中删除产品

const express = require('express');
const app = express();
const bodyParser = require('body-parser');

app.use(bodyParser.json());

let categories = {
  '1': { id: '1', name: 'Electronics', products: ['p1', 'p2'] },
  '2': { id: '2', name: 'Clothing', products: ['p3', 'p4'] }
};

app.delete('/categories/:categoryId/products/:productId', (req, res) => {
  const categoryId = req.params.categoryId;
  const productId = req.params.productId;

  if (!categories[categoryId]) {
    return res.status(404).json({ message: 'Category not found' });
  }

  categories[categoryId].products = categories[categoryId].products.filter(id => id !== productId);

  if (categories[categoryId].products.length === 0) {
    delete categories[categoryId];
  }

  res.status(204).send();
});

app.listen(3000, () => {
  console.log('Server is running on port 3000');
});

async function deleteProductFromCategory(categoryId, productId) {
  try {
    const response = await fetch(`http://localhost:3000/categories/${categoryId}/products/${productId}`, {
      method: 'DELETE'
    });

    if (!response.ok) {
      throw new Error(`HTTP error! status: ${response.status}`);
    }

    console.log('Product deleted successfully');
  } catch (error) {
    console.error('Error deleting product:', error);
  }
}

// Example usage
deleteProductFromCategory('1', 'p1');