将json变量传递给sendgrid的dynamic_template_data

{
  "name": "John Doe",
  "order_id": "123456",
  "items": [
    {
      "product": "Widget",
      "quantity": 2,
      "price": 19.99
    },
    {
      "product": "Gadget",
      "quantity": 1,
      "price": 29.99
    }
  ]
}

const sgMail = require('@sendgrid/mail');

sgMail.setApiKey('YOUR_SENDGRID_API_KEY');

const msg = {
  to: 'recipient@example.com',
  from: 'sender@example.com',
  templateId: 'YOUR_TEMPLATE_ID',
  dynamic_template_data: {
    name: 'John Doe',
    order_id: '123456',
    items: [
      {
        product: 'Widget',
        quantity: 2,
        price: 19.99
      },
      {
        product: 'Gadget',
        quantity: 1,
        price: 29.99
      }
    ]
  }
};

sgMail.send(msg)
  .then(() => {
    console.log('Email sent');
  })
  .catch((error) => {
    console.error(error);
  });