如何在postman中发送包含已删除字段和文件的json

{
  "order_id": "12345",
  "status": "updated",
  "deleted_fields": ["customer_name", "order_date"],
  "items": [
    {
      "item_id": "item001",
      "quantity": 2
    }
  ]
}

POST /api/update_order HTTP/1.1
Host: example.com
Content-Type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW

------WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name="order_id"

12345
------WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name="status"

updated
------WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name="deleted_fields"

["customer_name", "order_date"]
------WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name="items"

[{"item_id":"item001","quantity":2}]
------WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name="file"; filename="proof.pdf"
Content-Type: application/pdf

<file content>
------WebKitFormBoundary7MA4YWxkTrZu0gW--